最新刊期
卷 46 ， 期 8 ， 2025
- “最新研究突破，全光谱发光二极管领域取得重大进展，成功制备高效宽带发射、低热猝灭的杂化金属卤化物发光材料。”摘要：In recent years， full-spectrum light-emitting diodes （LEDs） have attracted considerable interest due to their continuous spectral distribution and superior color rendering capabilities. In this work， zero-dimensional DMA4InCl7∶Sb3+ （DMA=C2H8N） hybrid metal halide single crystals were synthesized via an anti-solvent approach. Under 343 nm ultraviolet excitation， the crystals exhibited broadband orange-yellow emission centered at 620 nm， achieving an exceptional quantum efficiency of 95.2% with a broad full width at half maximum （FWHM） of 148 nm. Density functional theory （DFT） calculations showed that Sb3+ doping effectively improves the band structure of host， while the spectral characterizations demonstrated that the broadband emission originates from the triplet self-trapped exciton （STE） of ［SbCl6］3-. Temperature-dependent photoluminescence spectra further revealed high photoluminescence thermal stability， with the material maintaining 81.2% of its room-temperature （RT） emission intensity at 150 ℃. Leveraging these superior luminescent properties， we fabricated a full-spectrum LED device with a high color rendering index （CRI） of 94.9. This work provides a strategic reference for designing hybrid metal halide luminescent materials that combine efficient broadband emission with suppressed thermal quenching.关键词：full-spectrum;light-emitting diode;metal halide;photoluminescence thermal stability262|116|0更新时间：2025-08-25
Cover Story
- “力致发光材料在生物医学领域应用的研究进展，为疾病治疗提供新方向。”摘要：Since the discovery of mechanoluminescence， it has undergone decades of development and has been widely applied in various fields， including sensing， anti-counterfeiting， and structural detection. However， the application of mechanoluminescent materials in biomedical fields is still in its early stages， with relatively few reports available. This paper first introduces advanced strategies for synthesizing mechanoluminescent materials and systematically discusses several typical mechanoluminescence mechanisms， with a focus on trap-controlled mechanoluminescence. Additionally， it presents the recently developed novel mechanoluminescence models based on chemiluminescence and bioluminescence. Furthermore， this paper provides a comprehensive overview of the applications of mechanoluminescent materials in biomedical fields， including biosensing， near-infrared bioimaging， optogenetic neuromodulation， and disease treatment. Lastly， this paper summarizes the major challenges faced by mechanoluminescent materials in biomedical applications and proposes their future research directions.关键词：mechanoluminescent materials;nanoparticles;biomedical applications;optogenetics270|130|0更新时间：2025-08-25
Invited Paper
- “在二维范德华异质结构中，莫尔超晶格展现出丰富的物理现象，极大地拓展了转角光子学的研究领域。本综述系统回顾了莫尔超晶格中的转角光子学，为新型光电器件、单光子源、激子激光器及量子计算平台的开发提供了新的可能性。”摘要：Moiré superlattices in two-dimensional van der Waals heterostructures exhibit a wealth of physical phenomena， significantly expanding the research scope of twistoptics. By precisely tuning the interlayer twist angle， Moiré superlattices can generate unique electronic， excitonic， and optical properties， such as band flattening， strong correlation states， topological states， and chiral optical responses. These characteristics open new opportunities for novel optoelectronic devices， single-photon sources， exciton lasers， and quantum computing platforms. This review systematically summarizes recent advances in twisted photonics of Moiré superlattices， covering the fabrication methods， exciton behaviors， nonlinear optical effects， nanoscale spectroscopy， and electric field tunability. The potential applications in future optoelectronics and quantum technologies are also discussed.关键词：Moiré superlattices;twistoptics;Moiré exciton;nonlinear optics;quantum optics170|223|0更新时间：2025-08-25
Invited Review
- “钙钛矿纳米线无模板定向成膜难题被攻克，为高性能线偏振发光器件的大面积、低成本制备提供新思路。”摘要：With intrinsic linearly polarized luminescence properties， perovskite nanowires have attracted widespread attention. However， in the absence of template-assisted alignment during film formation， perovskite nanowires are difficult to achieve uniform orientation， thereby limiting their potential applications in linearly polarized luminescence. In this work， we address the challenge of template-free oriented film formation of perovskite nanowires by combining the regulation of their aggregation structures in suspension with the scalable blade coating process. By optimizing the suspension concentration and the shear force during blade coating， we have achieved perovskite nanowire films with a photoluminescence polarization degree of 66.7% and an electroluminescence polarization degree of 27.5%. This study presents a novel approach for the large-scale and cost-effective fabrication of high-performance linearly polarized luminescent devices.关键词：metal halide perovskites;semiconducting nanowires;blade coating;orientation optimization;linearly polarized light-emitting diode122|84|0更新时间：2025-08-25
Editor's Choice
- “最新研究进展显示，二维稀土材料合成方法多样，包括化学气相沉积法、机械剥离法和镀膜法等，为光、电、磁领域应用提供新途径。”摘要：In recent years， two-dimensional rare-earth materials have rapidly become a frontier and hot spot in scientific research due to their unique properties that combine those of two-dimensional materials and rare-earth materials. To achieve the application of two-dimensional rare-earth materials in the fields of optics， electronics， and magnetism， their synthesis is of crucial importance. The methods for synthesizing two-dimensional rare-earth materials have been summarized. Among them， chemical vapor deposition （CVD） is one of the commonly used methods， and salt-assisted CVD can be used to synthesize binary （such as Gd₂O₅， CeO₂， Eu₂O₃， etc.） and ternary （such as EuOCl， LaOCl， Er₂O₂S， etc.） two-dimensional rare-earth compounds； mechanical exfoliation is often used to synthesize two-dimensional rare-earth oxyhalides and tellurides； coating methods include molecular beam epitaxy， thermal deposition， and others， which can be used to synthesize GdSi₂， EuGe2， SmSe， etc. Finally， the prospect of large-scale synthesis of two-dimensional rare-earth materials have been proposed.关键词：two-dimensional materials;rare-earth;synthesis methods119|65|0更新时间：2025-08-25
- “在量子点领域，研究人员通过掺杂Al提升CIS/ZnS量子点性能，降低QLED器件发光蓝移，为近红外发光器件发展提供新思路。”摘要：Near-infrared CuInS2 （CIS） based quantum dots （QDs） exhibit superior biocompatibility and environmental friendliness compared to traditional near-infrared cadmium-based （CdSe） and lead-based （PbS） QDs due to their absence of heavy metal elements. However， their low photoluminescence quantum yield （PLQY） and poor stability limit their practical applications. While ZnS shell coating improves the PLQY and stability of CIS QDs， CIS/ZnS QDs exhibit substantial blue shifts in photoluminescence （PL） peak positions compared to those of intrinsic CIS QDs. Additionally， the interfacial alloying in CIS/ZnS core/shell structures causes significant blue shifts in electroluminescence （EL） peak positions of quantum dot light-emitting diodes （QLEDs） relative to their PL peaks. This study develops a synthetic approach combining rigid shell structures with aluminum-doped shells， which reduces the photoluminescence （PL） blue shifts in CIS/ZnS quantum dots compared to intrinsic CIS QDs. By incorporating 50% Al/Zn molar ratio of aluminum isopropoxide （Al（IPA）3）， we successfully constructed CIS/Al-ZnS （CIS/AZS） core/shell QDs， which mitigate the EL blue shifts in QLEDs compared to the PL and balance carrier injection. The experimental results show that the CIS/AZS QLEDs achieve a 7 nm reduction EL peak blue shifts （emission at 963 nm）， a peak external quantum efficiency of 2.61%， and an 80% enhanced device lifetime. This research provides a solution to address EL blue shifts relative to PL in CIS/ZnS QDs， preserving more valuable near-infrared emission of near-infrared QLEDs.关键词：CIS/ZnS quantum dots;electroluminescent devices;Al doping;near infrared129|122|0更新时间：2025-08-25
- “最新研究发现，通过高温固相法合成的Cr³⁺掺杂铝/硅莫来石荧光粉，具有宽带近红外发光特性，为高效荧光转换型LED光源提供关键材料。”摘要：Near-infrared （NIR） phosphors are critical materials for high-efficiency phosphor-converted LED （pc-LED） light sources. However， the development of NIR phosphors with long emission wavelengths， broad emission bandwidths， and tunable spectra remains a significant challenge. In this study， a series of Cr3+-doped aluminum/silicon mullite （Al4+2zSi2-2zO10-z∶Cr3+） phosphors with solid-solution properties were synthesized via a high-temperature solid-state reaction. The luminescence characteristics of Cr3+ in both octahedral ［CrO6］ and tetrahedral ［CrO4］ sites were systematically investigated. Spectral shift and broadening were achieved through concentration regulation. By adjusting the aluminum/silicon ratio， effective spectral tuning was realized. Further modulation of Cr3+ doping concentration revealed concentration quenching in octahedral-site emission due to exchange interactions between activators， resulting in a notable spectral red shift （785→850 nm） with increasing dopant concentration. Under 405 nm excitation， the optimized 1.6/1-mullite∶Cr3+ sample exhibited a broad emission spanning 695-950 nm， featuring a full width at half maximum （FWHM） of 190 nm. This emission originates from the 4T2g→4A2g and 2Eg→4A2g transitions of Cr3+ in octahedral sites under an intermediate crystal field （Dq/B=2.30）， as well as the 4T2g →4T1g transition in tetrahedral sites with a weaker crystal field （Dq/B=1.02）. Additionally， the phosphor retained 63% of its room-temperature emission intensity at 423 K， with internal and external quantum yields reaching 53% and 24%， respectively. These results demonstrate the potential of this material as a high-performance broadband NIR phosphor for practical applications.关键词：Cr³⁺ Doping;near-infrared phosphors;crystal field;Near-Infrared LEDs.176|64|0更新时间：2025-08-25
- “最新研究发现，通过掺杂Eu3+，Ca3Ga4O9∶Tb3+荧光粉可实现从绿光到红光的连续光色调节，为开发新型紫外激发光色可调荧光粉提供指导。”摘要：The tunable luminescent phosphors in terms of light color have significant application value in fields such as healthy lighting， fluorescent anti-counterfeiting， and optical temperature measurement. Based on the blue-green tunable Ca3Ga4O9∶Tb3+ phosphor， this paper designs the incorporation of Eu3+ which can emit red light， and synthesizes a series of phosphors Ca2.98-xGa4O9∶0.02Tb3+， xEu3+， achieving continuous regulation of its light color from green to red. With the increase of Eu3+ doping concentration from x=0.01 to x=0.09， the energy transfer efficiency from Tb3+ to Eu3+ increases from 20% to 90.8%， and the color temperature decreases from 6 083 K to 1 750 K. The calculation results and energy level analysis results show that the energy transfer from Tb3+ to Eu3+ is due to dipole-dipole interaction and cross relaxation process. When the temperature of Ca2.96Ga4O9∶0.02Tb3+， 0.02Eu3+ phosphor reaches 398 K， the luminescence intensities of Tb3+ and Eu3+ remain at 46.6% and 49.8% of those at 298 K， respectively， and the thermal stabilities of the two activator ions are close. The research results of this work have certain guiding and reference significance for the development of new ultraviolet-excited color-tunable phosphors.关键词：phosphor;Tb3+/Eu3+ doped;Color-tunable;energy transfer131|37|0更新时间：2025-08-25
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Photoluminescence Properties of Novel Borate Sr2Sc2B4O11∶Cr3+ Near-infrared-emitting Phosphors 增强出版 AI导读
“最新研究报道，Cr3+掺杂的Sr2Sc2B4O11荧光粉在夜视、无损检测和生物成像等领域具有重要应用价值，为相关技术发展提供新思路。”摘要：In recent years， near-infrared （NIR） phosphor-converted light-emitting diodes （pc-LED） have shown extremely high application value in various fields such as night vision， non-destructive detection， and biological imaging. Development of NIR-emitting phosphors with a large full width at half maximum （FWHM）， high efficiency and stabilities has become a research focus. In this work， borate Sr2Sc2B4O11∶Cr3+ （SSBO∶Cr3+） phosphor samples were synthesized using high-temperature solid-state reaction. By means of X-ray diffraction （XRD）， scanning electron microscopy （SEM）， and X-ray energy dispersive spectroscopy （EDS）， the samples were systematically analyzed for phase identification， particle size and morphology， element distribution， etc. of the samples using. The samples exhibit efficient blue light absorption， yield a broadband NIR emission over 650-1 050 nm， with a peak at 785 nm， and a FWHM ~104 nm. Moreover， SSBO∶0.03Cr3+ phosphor has strong thermal stability and at 373 K maintains 67% of the emission intensity at room temperature. Finally， the optimized SSBO∶0.03Cr3+ phosphors were combined with a blue ~480 nm LED chip for a home-made NIR pc-LED， which was employed for applications in non-destructive detection and biological imaging.关键词：luminescent materials;NIR-emitting phosphor;Cr3+;borates， phosphor-converted LED111|37|0更新时间：2025-08-25 - “最新研究报道，LaScO3∶Yb3+/Er3+材料实现高精度光学测温，灵敏度和分辨率优于同类温度计，为光学温度计研究提供新方向。”摘要：Non-contact optical thermometers based on fluorescence intensity ratio （FIR） technology with high accuracy， stability and sensitivity have become a research hotspot in recent years. In this paper， the oxide material LaSc-O3 with low phonon energy and stable physical and chemical properties is selected as the matrix for Yb3+ and Er3+ doping through a high-temperature solid-phase method. The data show that accurate optical temperature measurement performance can be achieved from the thermal coupling energy level of Er3+： 2H11/2/ 4S3/2. Its best values of absolute sensitivity， relative sensitivity and resolution of this optical thermometer can reach 0.84%·K-1， 1.17%·K-1 and 0.12 K respectively， which is better than the corresponding values of most thermometers with the same type. Moreover， the sample exhibits excellent repeatability for optical sensing in the temperature range of 298-573 K. In addition， the energy transfer mechanisms in LaScO3∶Yb3+/Er3+ is discussed in detail. All the results reveal that LaScO3∶Er3+/Yb3+ is a high-sensitive optical thermometer.关键词：rare earth ions;upconversion luminescence;optical thermometry;fluorescence intensity ratio108|22|0更新时间：2025-08-25
Synthesis and Properties of Materials
- “在光电对抗、医疗诊断等领域，2 μm固体激光研究取得重要进展，为中红外新体制超快激光波长扩展提供参照。”摘要：Lasers have important scientific research and application values due to their physical properties in multiple dimensions such as time domain， frequency domain， space， and phase. In particular， Tm3+ and Ho3+ doped 2 μm solid-state lasers possess new characteristics such as wide bandwidth， high gain， flexible mode selection， and atmospheric molecular absorption， and have important application prospects in fields such as electro-optical countermeasures， medical diagnosis， new-band communication， and attosecond light sources. This paper focuses on the research status of 2 μm band ultrafast solid-state lasers， reviews and analyzes the research history， theoretical basis， technological progress， and application status of multi-dimensional regulation of solid-state ultrafast lasers in this band， and further looks forward to the development prospects of mid-infrared laser multi-dimensional regulation driven by artificial intelligence. This paper will provide a reference for emerging research such as wavelength expansion and spatial dimension expansion of new mid-infrared ultrafast laser systems.关键词：multidimensional;ultrafast laser;solid state laser;2 μm;transverse mode regulation239|118|0更新时间：2025-08-25
- “据最新报道，研究人员深入分析了Mini/Micro-LED在不同温度和电流密度下的发光特性变化，发现电流密度对色域影响更显著，为提升显示效果提供新思路。”摘要：The expanding application scenarios of Mini/Micro-light emitting diode display technology require operation across wide temperature ranges and current density conditions. However， variations in ambient temperature and driving current inevitably alter LED emission characteristics， leading to chromaticity coordinate shifts in Red-Green-Blue primaries and distortion of the color gamut， significantly degrading display color performance. In this work， the electro-thermal coupling effects on chromaticity coordinate evolution and the resultant Digital Cinema Initiatives-Protocol 3 color gamut coverage ratio are systematically studied by analyzing the emission optical properties of red， green， and blue Mini/Micro-LEDs under different temperatures and current densities. Experimental results demonstrate that temperature elevation induces synchronous chromaticity coordinate shifts across all three primary colors， with only a minor reduction in color gamut coverage （less than 2%）. In contrast， increased current density causes significant color gamut degradation， reaching a maximum reduction of 15%. These findings highlight that current density variation exerts a more severe impact on color performance than ambient temperature. Consequently， in developing Mini/Micro-LED displays， alongside thermal management strategies to mitigate temperature effects， it is critical to optimize current regulation schemes and implement dynamic color gamut compensation algorithms to counteract current-induced chromaticity deviations， thereby enhancing overall display quality.关键词：Mini/Micro-light emitting diode;color coordinates;color gamu197|123|0更新时间：2025-08-25
Device Fabrication and Physics
- “最新研究发现，联苯基席夫碱化合物在潜指纹可视化领域具有应用潜力，为相关材料设计提供新思路。”摘要：To explore the optical properties and practical applications of biphenyl-based Schiff base compounds， two Schiff base compounds， 3，3″-（4，4‴-bis（diphenylamino）-［1，1'：4'，1″：4″，1‴-quaterphenyl］-2″，3'-diyl）bis（azanylylidene）bis（methanylylidene）bis（［1，1'-biphenyl］-4-ol） （LFP-1） and 3，3″-（［1，1'：4'，1″：4″，1‴-quaterphenyl］-2″，3'-diyl）bis（azanylylidene）bis（methanylylidene）bis（［1，1'-biphenyl］-4-ol） （LFP-2）， were designed and synthesized. These compounds were constructed using 4，4'-dibromobiphenyl-2，2'-diamine as the molecular skeleton， which the π-conjugated systems were extended at the 4，4'-positions and lateral groups were introduced at the 2，2'-positions. Optical performance testing revealed that both compounds exhibited excited-state intramolecular proton transfer （ESIPT） and aggregation-induced emission （AIE） properties in dimethyl sulfoxide/water mixtures. Furthermore， these compounds had the ability to visualize latent fingerprints on three types of substrates： blades， tinfoil， and stainless steel. The first-， second-， and third-level fingerprint details were clearly identifiable， highlighting their potential for practical applications in forensic science. These findings lay a solid foundation for the design of advanced materials for latent fingerprint visualization.关键词：biphenyl-based Schiff base;aggregation-induced emission;latent fingerprint imaging187|110|0更新时间：2025-08-25
- “最新研究发现，无定形WO3薄膜可实现四种光学调控模式，为高可逆性四模态器件开发提供理论指导，对建筑节能应用具有重要参考价值。”摘要：WO3 is an excellent dual-band electrochromic material that can selectively modulate the transmittance of visible light and near-infrared light under the driving voltage. However， due to the influence of ion embedding depth and polariton transition mechanism， only three optical modulation modes—‘bright， cold， and dark’— are typically achievable. In this work， amorphous WO3 films were prepared and， by controlling the annealing temperature and driving potential， four optical modes—“bright，” “dark，” “cool，” and “warm”— were successfully realized. The maximum optical contrast reached 77.4% and 82.2% in the visible and near-infrared bands， respectively， with an average response time of 11.7 s. XPS and in-situ spectroscopy analysis showed that the formation of W3+ and metallic W local states is the key mechanism for the “warm” mode. However， deep ion trapping and excessive potential beyond the material’s stable range lead to poor reversibility of this mode. This study overcomes the multi-mode regulation limitations of traditional dual-band devices， and the revealed polariton-ion synergistic mechanism provides theoretical guidance for developing highly reversible four-mode devices. It also holds significant potential for applications such as building energy-saving.关键词：amorphous;dual-band;four-modal187|48|0更新时间：2025-08-25
- “在柔性电子、智能包装和生物医学领域，研究人员开发了一种新型光响应形状记忆材料，基于PVA/碳点复合体系，相较于纯PVA提升了形状恢复性能和速度，为开发高效光-热-水多重响应型智能材料提供了新思路。”摘要：Shape memory materials， as a type of intelligent materials that can restore to their initial state under external stimuli， have shown great potential in emerging fields such as flexible electronics， smart packaging， and biomedicine. However， the shape recovery efficiency of traditional polyvinyl alcohol （PVA） materials in water is greatly limited. This paper reports a novel photo-responsive shape memory material based on a PVA/carbon dots composite， which exhibits superior shape recovery performance in water compared to pure PVA by combining the carbon dots with PVA. The results obtained here have shown that the hydrogen bonds formed between the carbon dots and PVA are an important factor in enhancing the shape memory effect. The introduction of silicon elements into the carbon dots significantly improves the shape recovery speed in the composite， which is about three times higher than that of pure PVA. This is due to the silicon-doping of the carbon dots significantly enhance the photothermal conversion efficiency of the composite material to result in converting more solar energy into heat under sunlight conditions， thereby， accelerating the movement of molecular chains and achieving rapid shape recovery. Considering that as-prepared composite has the excellent controllable deformation performance and water-responsive characteristics， This study provides a new idea for the development of efficient light-thermal-water multi-responsive intelligent materials.关键词：Shape memory materials;Si-doped CDs;hydrogen bonds;photothermal conversion127|72|0更新时间：2025-08-25
- “最新研究发现，配体ABX与Cd2+络合后可高选择性、高灵敏度识别Cu2+，荧光响应效率显著提升，成功应用于水质检测和加密防伪油墨领域。”摘要：In this paper， the ligand ABX was prepared by condensation reaction of coumarin aldehyde and pyrene hydrazone. The probe has completely different UV and fluorescence responses towards Cd2+ and Cu2+， respectively. Competitive experiments showed that the presence of Cu2+ interferes with the Cd2+ recognition performance by probe ABX， and the substitution reaction between Cu2+ and ABX-Cd2+ produceed a more stable ABX-Cu2+ complex. Therefore， the recognition performance of ABX-Cd2+ complex for Cu2+ was investigated. The results showed that the probe ABX-Cd2+ could identify Cu2+ with high selectivity and sensitivity， and the fluorescence response efficiency was significantly improved from 68.71% to 96.25% compared with that of Cu2+ directly identified by ABX. The “test paper” of the loaded probe ABX-Cd2+ was orange-red under ultraviolet light， and then the fluorescence was gradually quenched after being immersed in Cu2+， so it was successfully applied to the semi-quantitative detection of Cu2+ in tap water and industrial wastewater. In addition， the letters written with ABX solution on the silica gel were yellowish green under ultraviolet light and then became orange-red after applying Cd2+， and the fluorescence was completely quenched after continuing to apply Cu2+， which was suitable for application in the field of encryption and anti-counterfeiting ink. Most importantly， The probe ABX-Cd2+ has also been successfully applied to the bioimaging studies of intracellular Cu2+.关键词：fluorescent probe;coumarin;Cd2+ complex;Cu2+;Industrial wastewater;fluorescent anti-counterfeiting;bioimaging118|100|0更新时间：2025-08-25
Luminescence Applications and Interdisciplinary Fields
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