最新刊期
卷 47 ， 期 3 ， 2026
- “In the field of micro-nano lasers, a new study introduces ethyl acetate as a green antisolvent to create high-quality quasi-2D perovskite films. This innovation enhances crystallinity, inhibits low n-phases, and extends gain lifetime, leading to a significant reduction in ASE threshold and high net modal gain. The optimized film enables a VCSEL with single-mode lasing and a high quality factor, advancing scalable photonic integration.”摘要：Quasi-two-dimensional （quasi-2d） perovskites are promising gain media for micro-nano lasers， yet their uncontrolled crystallization and abundant low-n phases often hinder optical gain and device performance. In this work， we introduce ethyl acetate （EA） as a green antisolvent to fabricate high-quality quasi-2D PEA0.4MAPbBr3 films. The EA-treated films exhibit superior morphology， enhanced crystallinity， and notably inhibited low n-phases. These improvements yield a prolonged photoluminescence lifetime of 26.3 ns and a substantially extended gain lifetime of 129 ps. Consequently， the optimized film exhibits a markedly reduced amplified spontaneous emission （ASE） threshold of 5.6 μJ·cm-2 and a high net modal gain of 935 cm-1. Leveraging these enhanced gain properties， we successfully demonstrate a vertical-cavity surface-emitting laser （VCSEL） based on a dielectric Bragg reflector microcavity， which delivers single-mode lasing at 528.3 nm and a high quality factor of ~5 886. This work presents a green-solvent-engineering strategy for high-performance perovskite lasers， advancing their prospects for scalable photonic integration.关键词：quasi-2D perovskite;green antisolvent;gain properties;perovskite lasers1538|372|0更新时间：2026-03-25
Cover Story
- “最新研究在镧系纳米晶电致发光领域取得突破，专家通过引入有机分子配体，实现了高效可调谐的可见及近红外发光二极管，为高色纯度显示和近红外光源开辟了新路径。”摘要：Lanthanide-doped nanoparticles （LnNPs） have long been regarded as electrically inactive due to their insulating hosts. A recent strategy enables electrical activation by introducing exciton-forming organic ligands as energy mediators， achieving efficient and color-tunable visible and near-infrared LnLEDs. This breakthrough overcomes the insulation bottleneck and opens new opportunities for high-color-purity displays and infrared photonic devices.关键词：Lanthanide nanocrystals;electroluminescence;Molecular excitons;energy transfer;High-color-purity displays;Near-infrared emission1391|338|0更新时间：2026-03-25
Research Highlight
- “胱抑素C是肾功能评估的关键指标，传统检测方法受限于信号标签的亮度与稳定性。专家构建了钙钛矿量子点荧光生物探针，实现了胱抑素C的快速定量检测，为肾功能标志物的居家与现场快速检测提供了新策略。”摘要：Cystatin C（Cys C） is an important biomarker for evaluating and monitoring renal function and is widely used for early screening of kidney disease. Fluorescent lateral flow immunoassay is a convenient approach for rapid and quantitative Cys C testing， yet its analytical performance is often constrained by the brightness and stability of conventional signal labels. Here， we report a water-stable perovskite quantum dot（PQD）-based fluorescent bioprobe for use in Cys C LFIA. Mesoporous silica nanoparticles（MSNs） were employed as nanocarriers， enabling in situ formation of CsPbBr3 quantum dots within the mesopores while a SiO2 sealing layer was simultaneously constructed. The resulting CsPbBr3@MSNs@SiO2 probes exhibited high photoluminescence quantum yield（PLQY≈93%） and excellent water stability（>120 h）， providing robust signal output for LFIA readout. Based on this bioprobe， a fluorescent LFIA strip was fabricated for quantitative Cys C detection， demonstrating good specificity and a clear concentration-dependent response. This work offers a bright and water-stable labeling strategy for point-of-care testing of renal function-related biomarkers and expands the utility of metal halide PQDs in bioanalysis and LFIA-based diagnostics.关键词：perovskite quantum dots;Cystatin C;Lateral flow immunoassay;fluorescence;Point-of-care testing1574|428|0更新时间：2026-03-25
- “适配体夹心免疫传感器是一种新型检测技术，兼具选择性强与检测限低的优点，在生物检测领域展现出广泛的应用前景。专家们综述了该技术，涵盖了从适配体筛选、夹心结构构建到纳米信号放大传感方式的核心策略，总结了其在检测小分子、蛋白质及病原微生物等生物靶标方面的应用进展，并深入探讨了当前挑战与未来发展方向。”摘要：Aptamer-based sandwich immunosensors are an emerging analytical platform that combines the high specificity recognition of aptamers with the high sensitivity of immunoassays. Due to their advantages of excellent selectivity and low detection limits， these biosensors hold great potential for use in bioanalytical applications. This review outlines the key strategies underlying such biosensors， including aptamer selection， sandwich structure construction， and nanomaterial-enhanced signal amplification， and surveys recent advances in their bioanalytical application for the detection of small molecules， proteins， and pathogenic microorganisms. Current challenges and promising future directions for the field are also discussed.关键词：aptamer;nanomaterials;sandwich immunosensor;bioanalysis1333|367|0更新时间：2026-03-25
- “专家开发出新型白光LED用荧光玻璃，实现了蓝光到白光的调控，为白光LED性能提升提供新方案。”摘要：The increasing performance demands on white-light-emitting diodes （white-LEDs） necessitate the development of novel luminescent materials. Here， a new type of luminescent borate glass for white-LEDs applications was fabricated， based on Sn2+ single doping and Sn2+/Sm3+ co-doping. The obtained glasses exhibit favorable luminescence properties. Under ultraviolet excitation， the Sn2+ singly doped glass shows a broad and tunable blue emission band spanning from 300 nm to 500 nm. Co-doping Sm3+， which provides characteristic red-orange emission， enables efficient energy transfer from Sn2+ to Sm3+ ions （with a transfer efficiency of 41.71% in 2% Sm3+ co-doped glass sample）， allowing for effective color tuning from blue to white light. Furthermore， temperature-dependent photoluminescence measurements confirm the excellent thermal recoverability of these luminescent glasses， highlighting their promising potential for application in high-performance white-LEDs.关键词：Sn2+;luminescent properties;Sm3+;energy transfer;white-LEDs1216|252|0更新时间：2026-03-25
Invited Paper
- “Metal halides have gained global attention as outstanding optoelectronic materials. Over the past decade, research has made significant strides, particularly in color-conversion applications. The discovery of self-trapped exciton (STE) emission in perovskites has sparked interest in using metal halides for broadband lighting. This review provides a comprehensive overview of metal halide STE emitters for lighting applications, highlighting ideal spectral characteristics, mechanisms, optimization strategies, and recent advances. It also outlines challenges and future trends, aiming to facilitate commercialization.”摘要：Metal halides have attracted worldwide attention as exceptional optoelectronic materials. Over the past decade， research on metal halides has yielded remarkable progress， and their color-conversion applications have shown considerable promise for commercialization. With the reporting of self-trapped exciton （STE） emission in perovskites， the application of metal halides as broadband emitting materials in the lighting field has gained increasing interest. Herein， we provide a comprehensive review of metal halide STE emitters， especially for lighting applications. We begin with highlighting the ideal spectral characteristics and corresponding performance metrics for lighting. This is followed by a systematic summary of the mechanisms， optimization strategies， and recent advances of STE emission in metal halides. Finally， we outline the major challenges and prospective trends for metal halide STE emitters. This review aims to offer valuable insights into metal halide STE emitters and their lighting applications for facilitating the future commercialization.关键词：self-trapped exciton;metal halide;lighting;optoelectronic applications1067|395|0更新时间：2026-03-25
Invited Review
- “介绍了其在中红外激光领域的研究进展，相关专家制备了Er2S3掺杂的硫系玻璃，为开发高增益稀土掺杂中红外激光材料提供了新策略。”摘要：Mid-infrared （MIR） lasers， owing to their high beam quality and super robustness， are widely used in fields from surgery， environmental monitoring， and material processing to laser radar. However， their development is greatly limited by the lack of optical gain materials with both high rare earth doping content and excellent mechanical resistibility. Here， highly Er3+-doped Ga2S3-La2S3-Na2S3 chalcogenide glasses （ChGs） up to 10% in Er2S3 concentration are obtained. The resulting glass shows high glass transition temperature （492 ℃） and large Vickers hardness （3.37 GPa）， which is substantially greater than those of other ChGs. The intensity of 2.7 µm emission drastically increases with increasing Er3+ content and reaches a maximum at 7.5% Er2S3. Moreover， the absorption and emission cross-section at 2.7 µm are 10.6×10-21 cm2 and 15.7×10-21 cm2 at 7.5% Er2S3， respectively. The above research results provide a straightforward and effective strategy for the development of high gain rare earth doped MIR laser materials.关键词：mid-infrared emission;Chalcogenide glass;highly Er3+ doping;superior mechanical property435|193|0更新时间：2026-03-25
- “白光有机发光二极管（WOLEDs）在固态照明和全彩显示领域应用前景广阔。传统WOLEDs因多层结构存在工艺复杂、成本高等问题。本研究设计并合成了一种超小有机荧光分子TBT，实现了黄橙光宽谱发光。通过设计单一发光层结构，实现了冷白光、纯白光和暖白光发射，器件最大外量子效率为2.3%，最大亮度可达4000 cd/m²。这种超小荧光分子兼具低成本简单合成、可溶液加工、高性能发光等优势，为照明、显示等领域的低成本发光应用提供了可行途径。”摘要：White organic light-emitting diodes （WOLEDs） are promising candidates for solid-state lighting and full-color display due to their advantages such as energy conservation， thinness， lightness and flexible display. Traditional WOLEDs mostly adopt multi-layer architectures that stack primary-color emitters （red， green， and blue） to achieve white emission. However， these devices suffer from complicated fabrication and high manufacturing costs. Therefore， solution-processed single emissive layer WOLEDs have attracted extensive research attention. In this study， an ultra-small organic fluorescent molecule （4，7-bis（thiophen-2-yl） benzo［c］［1，2，5］thiadiazole， TBT） composed solely of a thiadiazole acceptor and a thiophene donor was designed and synthesized， which exhibits a broad yellow-orange emission ranging from 450 nm to 650 nm， with a peak at 560 nm. By blending TBT with poly（N-vinylcarbazole） （PVK） and 1，3-bis（5-（4-tert-butylphenyl）-1，3，4-oxadiazol-2-yl）benzene （OXD-7） in a single emissive layer， we obtain cool-white， pure-white， and warm-white electroluminescence covering 400-650 nm. The optimized device delivers a maximum external quantum efficiency of 2.3% and a peak luminance of 4 000 cd/m². Owing to its low-cost and simple synthesis， solution processability， and high efficiency， this ultra-small fluorescent molecule provides a feasible approach for low-cost lighting and display applications.关键词：Fluorescent molecules;solution processing;light-emitting diodes;single-emitting layer;white electroluminescence402|211|0更新时间：2026-03-25
- “专家通过高温固相法制备了Mn2+掺杂的二维钙钛矿Mn∶（PEA）2PbBr4，研究其光学特性及在发光太阳能聚光器（LSC）中的应用，为解决LSC重吸收损耗问题提供了新思路。”摘要：Luminescent solar concentrators （LSCs） have attracted significant attention due to their potential in large-area building-integrated photovoltaics. To realize efficient LSC， it is necessary to overcome the reabsorption losses while maintaining a high photoluminescence quantum yield （PLQY） and broad-spectrum absorption. Organic-inorganic two-dimensional hybrid perovskite materials， such as （PEA）2PbBr4 （PEA+=C8H12N+）， have shown promising prospects in low-cost optoelectronic devices. It is crucial for LSC to independently regulate the absorption and emission properties by using the doping strategies. However， the inherent small Stokes shift of intrinsic two-dimensional perovskites leads to severe reabsorption losses， which limit the efficiency of LSC. In this work， Mn2+ doped two-dimensional Mn∶（PEA）2PbBr4 was successfully prepared via a high-temperature solid-state method. Its optical properties were investigated， and device performance for application in LSCs was evaluated. The results demonstrated that Mn2+ doping induces a large Stokes shift of up to 310 nm with the absorption peak at ~300 nm and the emission peak at ~610 nm. The perovskite materials were embedded into a polydimethylsiloxane （PDMS） polymer matrix at varying mass fractions （0.15%-0.75%） to fabricate Mn∶（PEA）2PbBr4@PDMS thin films. Photovoltaic performance tests revealed that the 0.60% Mn∶（PEA）2PbBr4@PDMS film delivered the optimal performance， achieving an external optical efficiency （ηopt） of 7.57% and a maximum power conversion efficiency （PCE） of 1.246% under standard AM1.5G illumination.关键词：Mn∶（PEA）2PbBr4;luminescent solar concentrators;photovoltaics;solar energy;two-dimensional perovskites447|186|0更新时间：2026-03-25
Editor's Choice
- “In a recent study, researchers successfully synthesized five new crystals using the Czochralski method. These crystals, including Dy∶Ca3Li0.275Nb1.775Ga2.95O12 (CLNGG) and its doped variants, were investigated for their spectral features and energy transfer mechanisms. The findings show that co-doping with Tb3+ and Eu3+ ions enhances emission cross-sections and fluorescence quantum efficiency in the yellow wavelength region. This research opens a new direction for developing efficient yellow light lasers.”摘要：In this work， five kinds of crystals were successfully synthesized using the Czochralski method for the first time， namely Dy∶Ca3Li0.275Nb1.775Ga2.95O12 （CLNGG）， Dy，Tb∶CLNGG， Dy，Eu∶CLNGG， Tb∶CLNGG， and Eu∶CLNGG. A detailed investigation of spectral features and energy transfer mechanisms in such crystals was conducted by analyzing their optical absorption spectra， excitation and emission spectra， and fluorescence decay curves at ambient temperature. Calculations based on the Judd-Ofelt theory further elucidated these features. The results demonstrate that in the Dy3+ system， co-doping with Tb3+ and Eu3+ ions not only enhances the emission cross-sections in the yellow wavelength region but also improves the fluorescence quantum efficiency. These improvements are particularly beneficial for achieving efficient yellow light output from Dy3+. Additionally， the studies confirm the occurrence of reciprocal energy transfer between Dy³⁺ and Tb³⁺ ions in Dy，Tb∶CLNGG crystals， whereas unidirectional energy transfer from Dy³⁺ to Eu³⁺ occurs in Dy，Eu∶CLNGG crystals. Based on the obtained research results， Dy，Tb∶CLNGG and Dy，Eu∶CLNGG crystals could be utilized as compelling and potential laser media for diode-pumped all-solid-state yellow lasers.关键词：Crystal growth;CLNGG crystal;Dy3+，Tb3+/Eu3+∶CLNGG;Yellow emission;Spectral features;Energy transfer processes725|225|0更新时间：2026-03-25
- “介绍了其在空间光通信、核电站等极端环境领域的研究进展，相关专家设计并研究了一种基于Ta2O5的新型光波导，为解决传统硅基波导性能退化问题提供解决方案。”摘要：Extreme environments such as space optical communication and nuclear power plants impose strict requirements on the reliability and stability of photonic integrated devices. Traditional silicon-based waveguides face a serious risk of performance degradation in the above scenarios， mainly due to their inherent insufficient radiation resistance and chemical sensitivity. For this purpose， this paper designs and studies a new type of optical waveguide based on Ta2O5 with radiation resistance and chemical stability. The waveguide structure was designed and optimized based on classical electromagnetic theory， and experiments verified that the waveguide has low loss and ideal optical mode limitation capability. In addition， its preparation process is compatible with existing semiconductor technologies and has good integration potential. It can be further fabricated into FP （Fabry-Pérot cavity） waveguides， grating waveguides and other mode-selecting devices to achieve the transmission and control of photons. This research provides a high-performance and highly reliable waveguide scheme for optical communication and sensing systems that can operate stably in special environments such as strong irradiation and high corrosion， demonstrating broad application prospects.关键词：Tantalum pentoxide;Multilayer dielectric film;optical waveguide;Pattern analysis363|190|0更新时间：2026-03-25
Synthesis and Properties of Materials
- “钙钛矿发光二极管（PeLED）作为下一代高清显示技术备受关注。真空热蒸发法克服了溶液旋涂法的瓶颈，无需溶剂、环境友好，且与OLED产线兼容，有望推动PeLED产业化。专家归纳了三种常用工艺方式，介绍了红、绿、蓝三色高效PeLED的研究进展，并展望了商业化挑战与发展方向。”摘要：Metal halide perovskite light-emitting diodes （PeLEDs） are attracting intense academic and industrial interest for next-generation high-definition displays because of their readily tunable emission and the cost advantages offered by solution processability. Spin-coating is currently the most widely used route to deposit perovskite films， yet it suffers from high-boiling toxic solvents， uncontrolled crystallization and poor large-area uniformity. Vacuum thermal evaporation circumvents these limitations： it is solvent-free， environmentally benign， allows angstrom-level thickness and rate control， and is fully compatible with existing organic light-emitting diodes （OLED） fabrication lines， making it the most promising technique for scaling PeLED to large-area panels. Here we review the three principal vacuum thermal evaporation protocols-single evaporation， sequential evaporation and co-evaporation-used to deposit perovskite films. We then summarize recent strategies and progress in achieving high-performance red， green， and blue PeLEDs through compositional engineering， interface optimization， and device architecture design. Finally， we outline the remaining challenges and future research directions that must be addressed to commercialize vacuum thermal evaporation based PeLED technology.关键词：perovskite light-emitting diodes （PeLEDs）;Vacuum thermal evaporation;fabrication process;Material strategy;Interface engineering770|245|0更新时间：2026-03-25
- “报道了一种基于双段拼接掺铒光纤种子源的飞秒光纤激光器，其由种子源、两级光纤放大器及脉冲压缩部分组成，实现了腔内色散管理与光谱展宽，最终获得光谱带宽78.39 nm，脉宽49 fs、最大平均功率145.5 mW、峰值功率65.3 kW的飞秒脉冲。”摘要：This paper reports on an ultrashort pulse femtosecond fiber laser based on mode-locking with a two-segment spliced erbium-doped fiber. The laser consists of a seed source， a two-stage fiber amplifier， and a pulse compression section. The seed source is a single-walled carbon nanotube （SWCNT） mode-locked erbium-doped fiber laser， which uses a two-segment spliced erbium-doped fiber as the gain medium. This design effectively achieves intracavity dispersion management and spectral broadening by introducing complementary dispersion. In the amplifier section， the first-stage fiber amplifier employs forward pumping， while the second-stage uses bidirectional pumping. The amplified pulses are compressed using only 2.0 m of single-mode fiber， ultimately producing femtosecond pulses with a spectral bandwidth of 78.39 nm， a pulse width of 49 fs （fitted with a Sech² profile）， a maximum average output power of 145.5 mW after the two-stage amplification， a corresponding peak power of 65.3 kW， and a single-pulse energy of 3.20 nJ.关键词：Erbium-doped fiber laser;Carbon nanotube mode-locking;Spectral broadening535|177|0更新时间：2026-03-25
- ““”这段话，专家构建了基于亚甲基二铵离子的二维/三维杂化钙钛矿体系，为提升宽带隙钙钛矿太阳能电池在室内光伏应用中的性能与稳定性开辟了新方向。”摘要：Wide band gap perovskite solar cells demonstrate significant potential for indoor photovoltaic applications， yet their performance and stability still face challenges. The two-dimensional/three-dimensional （2D/3D） hybrid perovskite approach is regarded as an effective strategy to enhance the overall performance of wide bandgap perovskite devices. This study introduces a 2D/3D hybridperovskite structure based on methylenediammonium ions （MDA2+）， aiming to improve the photovoltaic performance of wide-bandgap perovskites under indoor lighting conditions. The research reveals that MDA2+ can interact with lead ions， iodide ions， and bromide ions in the perovskite precursor solution， inducing the formation of quasi-2D perovskite phases and thereby constructing a 2D/3D hybrid perovskite system. Compared to conventional 3D perovskites， this hybrid structure effectively optimizes the crystallization process of perovskite films， promotes charge carrier transport， and significantly suppresses non-radiative recombination. Leveraging these advantages， the MDA2+-modified 2D/3D hybrid perovskite solar cells achieve a synergistic improvement in open-circuit voltage and fill factor， delivering an indoor power conversion efficiency of 43.39% and demonstrating excellent operational stability under continuous maximum power point tracking. This study not only provides new insights for the development of high-performance indoor photovoltaic devices， but also highlights the broad prospects of the 2D/3D hybrid strategy in advancing perovskite optoelectronic devices toward practical applications.关键词：Two-dimensional/three-dimensional （2D/3D） hybrid perovskite;Methylenediammonium ion （MDA²⁺）;Wide-bandgap perovskite;Indoor photovoltaics;stability577|136|0更新时间：2026-03-25
Device Fabrication and Physics
- “专家以ZnO为阻变功能层，引入氧化铝绝缘修饰层，显著提升金属氧化物忆阻器的开关稳定性与电流开关比，为神经形态计算发展提供有效策略。”摘要：Metal oxide memristors have garnered significant attention in fields such as non-volatile memory， intelligent sensing， and neuromorphic computing due to their wide material availability， low cost， and compatibility with CMOS processes. However， their practical implementation and application value remain constrained by inherent limitations including substantial threshold voltage fluctuations， poor switching stability， and inadequate cycling endurance. This paper employs ZnO as the resistive switching layer and introduces a 2 nm-thick ultrathin aluminum oxide insulating modification layer via atomic layer deposition. This effectively regulates the growth and fusing process of conductive filaments within the device， significantly enhancing switching stability while elevating the current switching ratio to over 10⁴ and markedly reducing threshold voltage fluctuation. Under voltage bias， the device can simulate biological neuron characteristics such as integrate-and-fire behavior， self-leakage， and refractory periods， with ignition timing controllable via voltage pulse amplitude. Furthermore， irradiation with 365 nm ultraviolet light further reduces the threshold voltage and shortens the ignition time of the device. Leveraging the opto-electrical co-regulation properties of the device， a 64×64 memristor array was constructed to successfully achieve feature extraction and sharpening of optical input trajectories. This research provides an effective strategy for advancing neuromorphic computing.关键词：memristors;ultra-thin Alumina;neuron;photoelectric co-regulation723|299|0更新时间：2026-03-25
- “介绍了其在防伪领域的研究进展，相关专家开发了全新的PUF荧光防伪策略，利用PS/PEG相分离产生的聚合物孔腔作为微观密钥，结合KSF荧光粉作为定位参照物，实现宏观图案与微观结构有机结合，为解决传统防伪标签易被仿制问题提供了新方案。”摘要：This work developed a novel PUF fluorescent anti-counterfeiting strategy by using hexabromocyclododecane （HBCD） as the bromine source precursor. Under UVC ultraviolet lamp stimulation， HBCD undergoes bond cleavage and dehalogenation to release Br⁻ ions， driving the in-situ formation of CsPbBr3 perovskite nanocrystals. In this anti-counterfeiting system， polymer cavities generated via PS/PEG phase separation serve as the microscopic cryptographic keys within the PUF fluorescent label， while KSiF₄∶Mn⁴⁺ （KSF） phosphor act as positional references within the cavities. This design enables an organic integration of macroscopic patterns with microstructural features： （1） macroscopically， the label remains invisible under daylight， yet exhibits a distinct green fluorescent pattern under 365 nm UV excitation； （2） microscopically， the PUF key-comprising randomly distributed polymer pores and uniquely positioned KSF crystals—can be directly observed using smart electronic devices equipped with portable macro lenses. The stochastic microstructure formed by the incompatibility-driven phase separation between PS and PEG imparts an exceptionally high level of security to the label， effectively addressing the vulnerability of conventional static fluorescent anti-counterfeiting tags to counterfeiting.关键词：CsPbBr3 perovskite nanocrystals;anti-counterfeiting;PUF;Light driven1424|351|0更新时间：2026-03-25
- “以邻苯二胺和丙二酸为碳源，通过乙醇溶剂热法成功合成了绿色荧光碳量子点（Green fluorescent carbon dots，G-CDs）。研究团队采用透射电子显微镜、X射线光电子能谱和顺磁共振波谱等表征方法对碳量子点结构、盐酸多西环素（DOX）识别机制与光催化降解性能进行了研究。结果表明，G-CDs具有优异的荧光性能，荧光量子产率高达87.12%，并对多种离子及其他非四环素类污染物表现出良好的抗干扰能力。基于光诱导电子转移机制，G-CDs在与DOX作用后发生荧光猝灭，从而实现了对实际水样中DOX的特异性识别。在0~100 μmol/L范围内，G-CDs的荧光强度和DOX浓度呈现良好的线性关系，检出限低至91.92 nmol/L。G-CDs光催化降解DOX过程中表现出明显的乙醇溶剂效应，降解率最高可达76.06%，经4次降解循环后，降解率仍可保持在62.38%。这种兼具低检测限与高降解效率的双功能荧光传感材料展现出乙醇溶剂依赖的光催化降解特性，为抗生素污染治理提供了新思路，在环境监测与修复领域具有潜在的应用价值。”摘要：Green fluorescent carbon quantum dots （Green fluorescent carbon dots， G-CDs） were successfully synthesized via an ethanol-based solvothermal method using o-phenylenediamine and malonic acid as precursors. The structural properties of the G-CDs， the recognition mechanism toward doxycycline hydrochloride （DOX）， and their photocatalytic degradation performance were systematically investigated through transmission electron microscopy， X-ray photoelectron spectroscopy， and electron paramagnetic resonance spectroscopy. The results demonstrate that G-CDs exhibit excellent fluorescence properties， with a high fluorescence quantum yield of up to 87.12%， and demonstrate strong resistance to interference from various ions and other non-tetracycline contaminants. Based on the photo-induced electron transfer mechanism， G-CDs undergo fluorescence quenching upon interaction with DOX， enabling specific detection of DOX in real water samples. A strong linear correlation between fluorescence intensity and DOX concentration was observed within the range of 0-100 μmol/L， with a low detection limit of 91.92 nmol/L. Furthermore， the photocatalytic degradation of DOX by G-CDs exhibits a significant ethanol solvent effect， achieving a maximum degradation rate of 76.06%. It maintains a degradation rate of 62.38% after four consecutive cycles， demonstrating good recyclability. This study presents a bifunctional fluorescent sensing material that combines a low detection limit with high photocatalytic efficiency， featuring ethanol-dependent degradation behavior. These findings provide new insights into the design of multifunctional materials for antibiotic pollution control and highlight the potential application of such systems in environmental monitoring and remediation.关键词：carbon quantum dots;doxycycline hydrochloride;specific recognition;photocatalytic degradation;solvent effect533|167|0更新时间：2026-03-25
Luminescence Applications and Interdisciplinary Fields
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