最新刊期
- 摘要：Near-infrared circularly polarized luminescence （NIR-CPL） materials offer the dual advantages of deep tissue penetration and high information capacity， holding great potential for application in optical anti-counterfeiting， data encryption， bioimaging and optical devices. However， existing materials suffer from low luminescence asymmetry factors that are difficult to tune， which limits their practical application. To address this challenge， this paper reports a high-performance NIR-CPL system based on cholesteric liquid crystal elastomers （CLCEs）. By incorporating near-infrared luminescent molecules into CLCEs， a photonic bandgap is formed via the periodic helical structure of the CLCEs， enabling continuous control over the photonic bandgap position. Notably， when the photonic bandgap closely matches the emission peak of the NIR luminescent molecules， circularly polarized luminescence is significantly enhanced， yielding a maximum asymmetry factor （glum） of 0.3. This study not only provides a simple and effective strategy for developing high-performance NIR-CPL materials， but also establishes a material foundation for advanced applications in cancer detection and multi-level information encryption.关键词：near-infrared luminescence;circularly polarized luminescence;cholesteric liquid crystal elastomer;photonic bandgap1|0|0更新时间：2026-09-03
- 摘要：Mechanoluminescent materials are capable of converting input mechanical stimuli into photon emission， offering substantial promise for smart wearables， structural health monitoring， biomechanical imaging， and optoelectronic anti-counterfeiting. Advanced characterization techniques provide the measurements needed to reveal the structure–property relationships and physical mechanisms， guide materials design， and assess engineering applicability. Here， we review recent advances in the characterization of mechanoluminescent materials. We first introduce conventional mechanical loading platforms， including universal testing machines， drop-ball impact systems， rotary motors， and linear motors， together with optoelectronic signal-acquisition and system-integration modules. We then focus on the advanced characterization techniques， including transient-response measurements， single-particle characterization， in situ high-pressure characterization， and ultrasound-induced mechanoluminescence， and discuss their underlying principles， applicability， and technical advantages. Finally， we summarize current challenges related to synchronized multiphysics measurements， spatiotemporal resolution， monitoring under practical operating conditions， and high-throughput intelligent characterization， and outline future research directions.关键词：mechanoluminescence;Advanced characterization techniques;Mechanoluminescence efficiency;Transient mechanoluminescence2|0|0更新时间：2026-09-03
- 摘要：Performance and stability of inverted perovskite solar cells （PSCs） are severely constrained by non-radiative recombination induced by defect accumulation and inferior interfacial contact at the perovskite/［6，6］-phenyl-C61-butyric acid methyl ester （PCBM） heterojunction. Herein， a multifunctional interfacial modification strategy employing 4-sulfocalix［6］arene （SC6A） is developed to resolve the inherent interfacial drawbacks of the PVSK/PCBM interface. As a calixarene derivative， SC6A features a cup-shaped macrocyclic aromatic skeletons functionalized with abundant sulfonic （-SO3H） and hydroxyl （-OH） groups. It affords multi-site and omnidirectional coverage on perovskite surface， synchronously passivating diverse defects and restraining carrier non-radiative recombination. Its unique cavity can form π–π interactions with PCBM， which helps regulate the distribution of PCBM molecules and improve their dispersion. This ameliorates the uniformity of the PCBM film， optimizes the inferior interfacial contact， and further facilitates charge carrier transport efficiency. Benefiting from these synergistic effects， the resultant SC6A-modified device achieves a high-power conversion efficiency （PCE） of 24.56%. Furthermore， the SC6A-based device exhibits excellent stability， retaining 93% of its initial PCE after 1500 h of storage in N2 atmosphere and 80% after 500 h of thermal aging at 65°C， outperforming the unmodified control device significantly.关键词：4-Sulfocalix ［6］ arene;Interfacial modification;Inverted perovskite solar cells8|8|0更新时间：2026-08-28
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Construction and Luminescence Behavior of Triarenoheterocycle-Fused Dithienosilole Helicenes 增强出版 AI导读
摘要：In this study， four heterohelicenes （FST［5］H， AzaST［5］H， DBTST［5］H， DBTST［7］H） were successfully synthesized using unsymmetric dithieno［2，3-b：4′，3′-d］silole as a building block via Wittig reaction and selective photocyclization regulated by the electronic/steric effects of heteroatoms （nitrogen， sulfur）. Crystal structures reveal that with the increase of helicity degree， the molecular climbing height significantly rises from 0.91 Å for FST［5］H to 3.14 Å for DBTST［7］H， and multiple weak intermolecular interactions such as S…H and C…H are observed. The introduction of heteroatoms leads to a red shift of the maximum absorption peaks for the heterohelicenes； compared with the highly twisted DBTST［7］H， the more planar FST［5］H， AzaST［5］H， and DBTST［5］H exhibit higher fluorescence quantum yields， and the CIE chromaticity coordinates of all four helicenes lie in the blue-violet region. In the frozen state， all compounds exhibit phosphorescence emission in the long-wavelength region （500–600 nm）， and the long afterglow phenomena could be observed. In summary， the synergistic regulation of helicity degree and heteroatom introduction can effectively optimize molecular planarity， packing modes， and luminescent properties， thereby providing new insights for the design of organic deep blue-violet light-emitting helicene materials.关键词：dithieno［2，3-b：4′，3′-d］silole;heterohelicene;crystal structure;luminescence16|12|0更新时间：2026-08-27 - 摘要：NUltraviolet mechanoluminescent materials can emit ultraviolet light in response to mechanical stimuli， thereby enabling the conversion of mechanical inputs into optical signals. They represent an emerging class of smart luminescent materials that combine mechanical responsiveness with high-energy photon emission. Owing to their high photon energy and excellent optical concealment， these materials show great promise in passive sensing， information security， optical tagging， and microbial inactivation. In recent years， advances in trap regulation， self-recoverable emission， and flexible composite devices have driven ultraviolet mechanoluminescence from conventional energy-storage-and-release systems toward self-powered deep-ultraviolet emission. This review systematically summarizes recent progress in ultraviolet mechanoluminescent materials， luminescence mechanisms， and functional applications. First， the carrier trapping， release， migration， and recombination processes under mechanical stimulation are discussed from the perspectives of two representative mechanisms： trap-controlled and self-recoverable mechanoluminescence. The review then classifies reported materials according to the three ultraviolet regions—UVA （320–400 nm）， UVB （280–320 nm）， and UVC （200–280 nm）—and summarizes their representative material systems， luminescent centers， and performance characteristics. This classification highlights the evolution of ultraviolet mechanoluminescence from longer- to shorter-wavelength emission and from pre-charged carrier release to self-recoverable output. Recent application explorations in mechano-optical conversion， dynamic encryption， flexible sensing， solar-blind detection， and self-powered microbial inactivation are further discussed. Finally， future perspectives are provided on key issues including the design of new luminescent centers， efficiency enhancement of deep-ultraviolet emission， elucidation of self-recovery mechanisms， and device integration. This review aims to provide a systematic reference for the rational design， mechanistic understanding， and functional application of ultraviolet mechanoluminescent materials.关键词：mechanoluminescence;ultraviolet luminescence;Solar-blind ultraviolet;trap regulation;self-recoverable luminescence38|21|0更新时间：2026-08-25
- 摘要：Near-infrared （NIR， 700-2500 nm） light sources exhibit strong penetration through biological tissues， low susceptibility to ambient light interference， and matching with the overtone and combination absorption of vibrational modes of numerous molecular groups. They hold broad application prospects in fields such as non-visual lighting， medical imaging， and non-destructive quantitative detection of organic components. High-power NIR light sources can compensate for the limitations of detectors in sensitivity and dark noise， significantly improving imaging resolution and detection signal-to-noise ratio， thereby fulfilling the core requirements of “seeing deeper， farther， clearer， and more accurately.” However， commercially available NIR light sources still suffer from notable deficiencies in emission wavelength， emission bandwidth， luminescence efficiency， and device output power， making them inadequate for long-term high-power operation. Laser-driven light sources utilize high-power laser diodes （LDs） as pump sources， form high-energy-density directional laser beams through lens focusing， enabling remote non-contact excitation of high-thermal-conductivity fluorescent bulk materials. This approach fundamentally overcomes the power bottlenecks of conventional NIR light sources. This review systematically summarizes the research progress in fluorescent bulk materials for laser-driven high-power broadband NIR light source， and discusses the application prospects of such light sources in non-visual lighting， real-time non-destructive penetration imaging， physiological signal monitoring， quantitative analysis of organic components， and optical communications. The related discussion is expected to facilitate the rational design of novel high-efficiency NIR luminescent materials and the application of high-power light source devices.关键词：Near-infrared luminescent materials;laser-driven fluorescent light sources;doping;fluorescent bulk materials17|33|0更新时间：2026-08-25
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Synthesis and Optoelectronic Properties of Carbazole Derivatives-Based Chiral Host Materials 增强出版 AI导读
摘要：Chiral luminescent materials possess unique optical properties and exhibit great research potential in information security anti-counterfeiting， biological imaging， optical display and other fields， which have become a research hotspot in the current optoelectronics area. Nevertheless， it remains a huge challenge to realize circularly polarized organic light-emitting diodes （CP-OLEDs） with both high luminescence efficiency and high luminescence dissymmetry factor. In this thesis， adopting a chiral perturbation strategy， a pair of chiral host materials （R/S）-MB-mCP were constructed by non-conjugated linkage between 9，9'-（1，3-phenylene）bis-9H-carbazole （mCP） and point-chiral （R/S）-2-methylbutanol. The photophysical properties of the as-prepared materials was systematically investigated. Then they were used as host materials for the emissive layer in solution-processed CP-OLED phosphorescent devices. The CP-OLED devices were fabricated via a phosphorescence-sensitized phosphorescence strategy， achieving a maximum external quantum efficiency （EQE） of 26.6%， a maximum luminance nearly 20000 cd·m⁻²， and an electroluminescence dissymmetry factor up to -1.07×10-3/1.33×10-3.The experimental results demonstrate that the construction of chiral host materials combined with the phosphorescence-sensitized phosphorescence strategy can effectively realize high-performance circularly polarized electroluminescent devices.关键词：carbazole-based hosts;chiral alkyl chains;solution processing;circularly polarized luminescence;organic light-emitting diodes24|10|0更新时间：2026-08-25 -
Optical Thermometry of RbMgScMo3O12: Yb/Ho Negative Thermal Expansion Luminescent Material 增强出版 AI导读
摘要：A series of Yb3+/Ho3+ co-doped negative thermal expansion luminescent materials RbMgScMo3O12 are prepared by a high-temperature solid-state method. The phase composition and crystal structure were confirmed by X-ray diffraction combined with Rietveld refinement. The results indicate that the sample crystallizes in a hexagonal structure with the space group R-3c. X-ray absorption fine structure （XAFS） analysis confirmed an average coordination number （5.88） of the elements， further verifying the successful substitution of Sc3+ sites by Yb3+/Ho3+. First-principles density functional theory （DFT） calculations show that RbMgScMo3O12 exhibits an indirect bandgap electronic structure with a bandgap value of 4.09 eV. Under 980 nm excitation， the samples exhibit emissions at 541 nm （5F4/5S2→5I8）， 662 nm （5F5→5I8）， and 758 nm （5F4/5S2→5I7）. The optimal Ho3+ doping concentration is 0.10. Power-dependent luminescence analysis indicates that the green emission originates from either a two-photon or three-photon process， while the red emission arises from a two-photon process. Based on the fluorescence intensity ratio （FIR） thermometric technique， the maximum relative sensitivity （SR） reached 0.49% K-1 at 398 K， the repeatability （R） exceeded 97%， and the minimum temperature uncertainty （δT） is 0.20 K at 373 K. Temperature validation further confirmed the high accuracy and reliability of the FIR-based optical thermometry. The temperature verification results indicate that the optical thermometry model based on FIR exhibits high temperature measurement accuracy and reliability. Furthermore， the thermometric mechanism is mainly attributed to the different temperature responses of the non-thermally coupled levels （NTCLs） of Ho3+， which result in a pronounced variation of FIR with increasing temperature. With increasing temperature， the non-radiative relaxation and cross-relaxation processes of the excited states of Ho3+ ions are enhanced， leading to a continuous evolution of the emission color from green → yellow → orange → red， demonstrating that this material enables wide-range， naked-eye visual temperature discrimination. This work provides a strategy for developing optical thermometric materials with both temperature-sensing and visual indication capabilities.关键词：RbMgScMo3O12： Yb3+/Ho3+ co-doping;negative thermal expansion;upconversion;FIR30|9|0更新时间：2026-08-25 - 摘要：To overcome the narrow spectral width of conventional AlGaN-based light-emitting diodes， we designed the active region and fabricated an AlGaN-based broadband LED. We achieved spectral broadening by balancing quantum well emission and defect-related emission from the p-type AlGaN layer. Experiments show that quantum wells with Al composition increasing along the c-axis create an effective barrier near the p-side of the active region. This barrier reduces hole injection into the quantum wells and weakens radiative recombination there. Meanwhile， it blocks numerous holes in the p-type layer and thus enhances defect emission， which exhibits a much broader spectrum. Consequently， the overall emission spectrum widens. An additional quantum well with high Al composition contributes little to further broadening. It mainly acts as a high barrier that affects carrier injection and distribution among the multiple quantum wells （MQWs）. The device with Al composition gradually increasing along the c-axis and a single quantum well at each Al fraction displays the best broadband performance， achieving an electroluminescence full width at half maximum （FWHM） of about 41.4 nm. This device was also combined with a beam combiner to demonstrate an ultraviolet light source covering 260 nm to 400 nm. This device effectively extends the spectral range and reduces system integration complexity. This work lays a solid foundation for compact and spectrally customizable advanced ultraviolet light sources and will promote the practical application of broadband ultraviolet sources.关键词：broad spectrum;ultraviolet light source;AlGaN;LED;MQWs49|17|0更新时间：2026-08-21
- 摘要：In this study， iron and copper bimetallic co-doped fluorescent carbon dots （Fe-Cu-CDs） were synthesized via a hydrothermal method using citric acid and urea as carbon sources， and copper sulfate and ferric chloride as metal precursors. In aqueous systems， the as-prepared Fe-Cu-CDs exhibit a dual-functional capability， enabling both accurate fluorescence sensing of doxycycline hydrochloride （DOX） and efficient peroxymonosulfate （PMS）-activated catalytic degradation of DOX. The Fe-Cu-CDs possess a high fluorescence quantum yield of 73.2% and demonstrate excellent fluorescence performance with excellent anti-interference capability. Based on a mechanism involving static fluorescence quenching and photoinduced electron transfer， Fe-Cu-CDs can specifically recognize DOX in aquatic environments. Within a concentration range of 0–100 μmol/L， the degree of fluorescence quenching shows a good linear relationship with DOX concentration， yielding a limit of detection （LOD） as low as 51.7 nmol/L. Meanwhile， the Fe-Cu bimetallic synergistic effect significantly enhances PMS activation， generating singlet oxygen （¹O₂） through a non-radical pathway to mediate Fenton-like oxidation， achieving a maximum DOX degradation efficiency of 83.6% within 60 min. After three consecutive degradation cycles， the degradation efficiency remained at 65.6%. Upon three degradation cycles， Fe–Cu–CDs retained a degradation rate of 65.6%. Combined analyses of X‑ray photoelectron spectroscopy， electrochemical impedance spectroscopy， and normalized double‑layer capacitance demonstrate that the bimetallic synergy of Fe–Cu–CDs boosts its recognition performance and catalytic efficiency through enhanced active‑site accessibility and optimized electron transfer. Therefore， the Fe-Cu bimetallic doped carbon dots， integrating the advantages of fluorescence sensing and singlet oxygen-mediated non-radical advanced oxidation degradation， provide a novel and efficient fluorescent functional material and technical support for the integrated detection and treatment of tetracycline antibiotics in aquatic environments.关键词：carbon dots;doxycycline hydrochloride;specific recognition;PMS activation;Non-radical degradation48|26|0更新时间：2026-08-21
- 摘要：In this experiment， Ga2O3 films were grown on Ga2O3（001）substrates via metal-organic chemical vapor deposition （MOCVD）. Subsequently， p-NiO films were deposited on the Ga2O3 films by magnetron sputtering to form a Ga2O3/NiO heterojunction， which was then employed to fabricate a junction barrier Schottky diode（JBS）. The crystal quality， surface morphology， and thickness of the Ga2O3 films were characterized and analyzed using X-ray diffraction（XRD）， atomic force microscopy（AFM）， and field emission scanning electron microscopy（SEM）. The results showed that the Ga2O3 films exhibit a preferred orientation along <001> direction. The surface of the films was relatively flat following the step-flow epitaxial growth mode and the surface of the NiO film was smooth and in accordance with the island growth mode. Electrical characterization of the fabricated devices demonstrated obvious rectifying and switching behavior， along with high-voltage capability. The device achieved a current density（J）of 216 A/cm2 and a specific on-resistance（Ron，sp）of 9.6 mΩ∙cm2 under a forward bias of 5 V； the turn-on voltage（Von）of the device was approximately 0.5 V， and under a bias of ±3 V the device demonstrates a rectification ratio of 1×108. Under reverse bias， the breakdown voltage（BV）of the device was approximately 440 V， and the power figure of merit（PFOM）reached 20.16 MW/cm2.Furthermore， we used the TCAD software to simulate the device structure and analyzed the working principle based on the electric field distribution within the device. The JBS exhibits both low conduction loss and high blocking voltage， providing a new idea for the development of Ga2O3 high-voltage power devices.关键词：Ga2O3;metal-organic chemical vapor deposition;n-Ga2O3/p-NiO;junction barrier Schottky diode55|21|0更新时间：2026-08-19
- 摘要：Top-emitting quantum dot light-emitting diode （QLED） have a higher pixel aperture ratio and significant application value in display technology. In this paper， an Al/Ag semi-transparent anode was first designed， and the inverted top-emitting device fabricated achieved a maximum external quantum efficiency （EQEmax） of 25.0% and a maximum current efficiency （CEmax） of 54.1 cd/A， which were 22.5% and 27.2% higher than those of the pure Ag anode device， respectively. The research shows that Al/Ag enhances the hole injection ability and is conducive to charge injection balance. Then， the influence of the top-emitting microcavity effect on the device's luminescence performance was studied， and it was found that the electrode thickness and device cavity length have a regulatory effect on the device performance. When Ag and ZnMgO are 27 nm and 65 nm， respectively， the device performance is optimal. Finally， the influence of the microcavity on exciton recombination was explored， and it was found that the Purcell effect can accelerate exciton radiative recombination.关键词：Top-emitting QLED;Al/Ag semi-transparent electrodes;Inverted light-emitting device63|31|0更新时间：2026-08-19
- 摘要：Trap-engineered optical functional materials rely on charge-carrier capture， storage and release to generate multimodal optical responses under external stimuli such as heat， light， mechanical force， and ultrasound. These responses include persistent luminescence， thermoluminescence， optically stimulated luminescence， mechanoluminescence， ultrasound-stimulated luminescence， and photochromism， showing great potential in optical anti-counterfeiting， information storage， stress detection， biomedicine， and neuromorphic computing. This review first summarizes the classification and fundamental processes of typical trap-related optical response modes， with emphasis on carrier de-trapping， migration， and recombination under different stimuli. It then highlights recent progress in static and dynamic optical anti-counterfeiting， bright-field and dark-field information storage， real-time and delayed stress detection， ultrasound-triggered biomedical applications， and all-optical neuromorphic computing. Finally， current challenges are discussed in terms of precise trap-structure regulation and characterization， multimodal signal stability and decoupling， biomedical safety， and the construction of device-level and intelligent platforms. Future directions involving intelligent trap engineering， synergistic optimization of multimodal responses， and system-level integration are also outlined. This review aims to provide guidance for understanding multimodal response mechanisms， optimizing material performance， and designing applications of trap-engineered optical functional materials.关键词：trap engineering;optical functional materials;multimodal response;carrier traps;optical applications45|14|0更新时间：2026-08-19
- 摘要：Circularly polarized luminescent （CPL） materials hold great promise for applications in 3D display， quantum communication， and optoelectronic devices. Chiral organic molecules are garnering substantial interest due to well-defined， tunable structures， and compatibility with classical processing methods like vacuum deposition. Among others， chiral macrocycles are ideal candidates for high-performance CPL materials due to their conformationally rigid frameworks， which confer stable ground- and excited-state geometries. This review summarizes recent progresses on CPL of chiral macrocycles， including non-conjugated macrocycles， conjugated macrocycles and belts. We aim to shed light on the relationship between molecular structure and the luminescence dissymmetry factor， and to guide the development of novel chiral macrocycles.关键词：chiral macrocycles;circularly polarized luminescence;luminescence dissymmetry factor;transition dipole moment54|20|0更新时间：2026-08-19
- 摘要：Organic-inorganic hybrid metal halide materials feature structural diversity and outstanding optoelectronic properties， and exhibit unique characteristics in the fields of mechanoluminescence （ML） and sensing. In this work， a zero-dimensional manganese-based hybrid halide crystal （TPPen）2MnBr4 （TPPen = pentyltriphenylphosphonium） was designed and synthesized. We systematically characterized the crystal structure， photoluminescence performance， and luminescent response under mechanical stimuli. The crystal emits bright photoluminescence under 365 nm excitation and generates ML upon mechanical stimulation. Both emission bands are centered at 517 nm， originating from the d–d transitions of Mn2+ ions. After embedding the crystals into elastomer films， the composite films display distinct luminescent responses under different scratching forces， demonstrating their great potential for stress visualization applications.关键词：Mn-based hybrid halide;photoluminescence;mechanoluminescence;stress visualization70|22|0更新时间：2026-08-19
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Recent Advances in Circularly Polarized Luminescence from Helicenes-Based Chiral Nanographenes 增强出版 AI导读
摘要：As a class of conjugated nanocarbon materials with atomically precise structures， chiral nanographenes integrate the excellent optoelectronic properties of graphene and the unique circularly polarized optical characteristics of chiral molecules， thus holding great application potential in cutting-edge fields such as circularly polarized luminescence （CPL） devices， chiral sensing， biological imaging and quantum information. Benefiting from the inherent helical conjugated framework and chiral features， helicenes have served as the core building blocks for constructing high-performance chiral nanographenes， effectively overcoming the bottlenecks of traditional planar nanographenes including intrinsic achirality， poor stability of chiral doping systems and low luminescence dissymmetry factors. This paper systematically reviews the latest research advances in helicene-based chiral nanographenes. It mainly elaborates on the structural construction strategies and CPL modulation mechanisms of helicene-based chiral nanographenes， and summarizes how diverse helicene topologies and conjugated extension degrees affect the CPL dissymmetry factor and fluorescence quantum yield of chiral nanographenes. Furthermore， the current application status of such materials in chiral optoelectronic devices is summarized. Several critical challenges are also discussed， including high cost of chiral resolution， solid-state aggregation-caused quenching， and the difficulty in synergistically optimizing multiple CPL performances. Finally， the future development prospects of chiral nanographene research are outlooked.关键词：helicenes;chiral nanographene;circularly polarized luminescence;conjugation modulation;optoelectronic properties49|18|0更新时间：2026-08-19 - 摘要：With the continuous advancement of science and technology， more stringent requirements for the temperature measurement have been put forward， for instance， non-contact temperature readout， spatial mapping of temperature field， and rapid response detection. Luminescence-based temperature sensing technology has received widespread attention and research due to its potential to meet these requirements. This article systematically reviews the material aspects of the temperature sensing technology based on luminescence， presenting the main luminescent materials used for temperature sensing， including organic compounds， quantum dots， metal nanoclusters， rare earth and transition metal ions doped materials， carbon materials， and hybrid materials. The optical properties of various materials， the advantages and disadvantages of the temperature sensing are also analyzed. This article also systematically outlines the intrinsic mechanisms of the temperature sensing based on luminescence， such as single emission intensity dependence， emission band shift and bandwidth broadening， fluorescence intensity ratio， and fluorescence lifetime. In addition， this article summarizes the critical quality factors for evaluating temperature sensing performance， including linearity， absolute sensitivity， relative sensitivity， temperature resolution， and repeatability. Finally， the main challenges faced by the temperature sensing technology based on luminescence were summarized， such as limited sensitivity， single functionality， and insufficient biocompatibility. The potential for future development in new composite material development， multifunctional integrated sensing， and biomedical applications was also discussed.关键词：luminescent material;Optical temperature sensing;Temperature sensing mechanism;Temperature sensing materials;temperature sensing performance56|30|0更新时间：2026-08-19
- 摘要：Chiral organoboron fluorophores， featuring tunable emission， good photostability， and abundant structural modification sites， represent important molecular platforms for constructing circularly polarized luminescent materials. This review focuses on representative chiral organoboron fluorophores， including centrally chiral BOPPY， benzothieno-fused BOPPY， axially chiral BODIPY， spiranic BINOL-derived BBI， and boron-stereogenic chiral BOPSH systems， and summarizes the relationships among molecular structure， supramolecular assembly pathways， morphology evolution， and CPL output. Particular attention is paid to the effects of surfactant-assisted co-assembly， solvent-induced aggregation， and solid-state self-dispersion strategies on chirality transfer， amplification， luminescence efficiency， and processing compatibility. An integrated evaluation framework for assembled CPL materials is further proposed， involving the luminescence dissymmetry factor， emission efficiency， morphological stability， and device-conversion potential. This review aims to provide guidance for the development of chiral organoboron fluorophores from molecular design and assembly-state CPL amplification to solid-state material transformation.关键词：chiral organoboron dyes;supramolecular assembly;circularly polarized luminescence;supramolecular chirality;chiral amplification66|14|0更新时间：2026-08-18
- 摘要：In this work， classic circularly polarized thermally activated delayed fluorescence （CP-TADF） molecules （R）-Cz₂CN and （S）-Cz₂CN were obtained by introducing two carbazoles into a terephthalonitrile moiety bearing an axially chiral binaphthyl structure. It was found that the two enantiomers not only emitted CP-TADF with dissymmetry factors of +2.4×10-4 and -2.6×10-4 in solution， but also exhibited excellent aggregation-induced emission （AIE） properties. Their fluorescence quantum yields in the crystalline state reached 30 % and 28 %， respectively. More importantly， （R）-Cz₂CN and （S）-Cz₂CN could directly emit yellow mechanoluminescence （ML） under mechanical force， representing the first reported CP-TADF luminophore capable of emitting yellow ML. Furthermore， under the stimuli of external force and solvent vapor， their photoluminescence color could be switched between green and yellow， exhibiting reversible mechanofluorochromic （MFC） behavior. These results indicate that （R）-Cz₂CN and （S）-Cz₂CN are AIE-active CP-TADF materials possessing both MFC and ML characteristics. Based on the force-stimuli-responsive properties of （S）-Cz₂CN， this study further demonstrated its potential application in ink-free writing.关键词：circularly polarized luminescence;thermally activated delayed fluorescence;aggregation-induced emission;mechanoluminescence;mechanofluorochromism60|45|0更新时间：2026-08-18
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Recent Progress of Axially Chiral Fluorescent probes for enantioselective recognition of amino acids 增强出版 AI导读
摘要：Amino acids serve as essential functional materials in the biomedicine and food sectors， making the precise enantioselective differentiation of chiral amino acids critically important for research. Axially chiral 1，1'-bi-2-naphthol （BINOL） and H8BINOL derivatives serve as superior platforms for constructing chiral fluorescent probes， owing to their C2-symmetric rigid skeletons， facile derivatization and outstanding fluorescence properties. This paper reviews the research advances of axially chiral fluorescent probes based on BINOL and H8BINOL for enantioselective recognition of amino acids from 2016 to 2026. It categorizes and sorts sensing systems fabricated via diverse modification strategies targeting typical chiral amino acids including lysine， cysteine， phenylalanine and tryptophan. Emphasis is placed on molecular synthesis methods， along with optical recognition mechanisms covering PET， ICT， ESIPT and AIE， as well as chiral discrimination modes involving hydrogen bonding， metal coordination and steric matching. Existing probes can realize quantitative detection of amino acid enantiomers by means of fluorescence intensity shifts， emission wavelength variations and circular dichroism spectroscopy， and some are applicable to in-situ imaging in food matrices and living cells. Nevertheless， several limitations remain， such as poor water solubility， insufficient broad-spectrum recognition capacity and weak anti-interference performance. Finally， this work summarizes the current bottlenecks in this field and prospects its future development from the perspectives of water-soluble molecular design， signal amplification via nanoassembly， portable detection device fabrication and rational synthesis assisted by theoretical calculations， providing theoretical guidance for the exploitation of high-performance chiral fluorescent probes for amino acids.关键词：axial chirality;fluorescent probe;enantioselective recognition;Amino acid;H8BINOL118|29|0更新时间：2026-08-14
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