Advanced Optical Materials最新文献_第7页

New H-Shaped Conjugated Reactive Liquid Crystals with Exceptionally Low Birefringence for Advanced Polymer Optics 新型低双折射h型共轭反应液晶用于先进聚合物光学

IF 7.2 2区材料科学

Advanced Optical Materials Pub Date : 2025-08-22 DOI: 10.1002/adom.202501892

Iván Marín, Pengrong Lyu, Dirk J. Broer, Danqing Liu

{"title":"New H-Shaped Conjugated Reactive Liquid Crystals with Exceptionally Low Birefringence for Advanced Polymer Optics","authors":"Iván Marín, Pengrong Lyu, Dirk J. Broer, Danqing Liu","doi":"10.1002/adom.202501892","DOIUrl":"https://doi.org/10.1002/adom.202501892","url":null,"abstract":"The growing demand for advanced optical materials in augmented reality (AR), virtual reality (VR), and imaging technologies requires new strategies to overcome the limitations of conventional high-birefringence systems. Herein, the design, synthesis, and characterization of a novel series of conjugated H-shaped liquid crystal (LC) molecules is reported with exceptionally low birefringence. These materials combine LC behavior with reactive end groups, enabling their integration into highly transparent, well-aligned polymer films. The unique molecular architecture balances the extraordinary and ordinary refractive indices, minimizing anisotropy without compromising optical quality. Their incorporation into cholesteric liquid crystal (CLC) systems resulted in narrow reflection bandwidths of 37 nm on average across the visible spectrum, maintaining high transparency and preventing phase separation. The projection of sharp images and videos is successfully achieved on a transparent CLC coating that selectively reflects red, green, and blue wavelengths. These results demonstrate the significant potential of H-shaped conjugated mesogens for the next generation of optical and photonic devices requiring precise birefringence control and optical clarity.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 29","pages":""},"PeriodicalIF":7.2,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202501892","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145284839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Time-Programmable Fluorescence in Perovskite Quantum Dots via Reverse Sustained-Release Strategy for Dynamic Information Encryption 钙钛矿量子点的时间可编程荧光动态信息加密的反向持续释放策略

IF 7.2 2区材料科学

Advanced Optical Materials Pub Date : 2025-08-22 DOI: 10.1002/adom.202501912

Zi-Rong Zhou, Hong-Fei Li, Zi-Hao Liao, Zhe-Xun Zhu, Feng Wang

{"title":"Time-Programmable Fluorescence in Perovskite Quantum Dots via Reverse Sustained-Release Strategy for Dynamic Information Encryption","authors":"Zi-Rong Zhou, Hong-Fei Li, Zi-Hao Liao, Zhe-Xun Zhu, Feng Wang","doi":"10.1002/adom.202501912","DOIUrl":"https://doi.org/10.1002/adom.202501912","url":null,"abstract":"Smart luminescent materials capable of time-resolved dynamic fluorescence color transitions hold immense potential for advanced information encryption and anti-counterfeiting technologies in the emerging digital era. However, achieving precise control over wide-range fluorescence color modulation remains a significant challenge. In this study, a novel reverse sustained-release strategy is presented to fabricate CsPbBr3@PAA perovskite quantum dots (QDs), where ultra-small CsPbBr3 QDs within quantum confinement size (QCS) are confined within a polyacrylic acid (PAA) matrix. Initially, the CsPbBr3@PAA QDs exhibit blue-violet fluorescence in toluene due to the quantum confinement effect. Upon exposure to hydrous alcohol, the PAA matrix enables a controlled, reverse release of CsPbBr3 QDs into the solvent, triggering a morphological transition from sub-nanometer QDs to nanoblocks exceeding the QCS. This structural evolution induces a dynamic time-dependent fluorescence shift from blue-violet to green, spanning five visually distinct colors (blue-violet, blue, cyan, turquoise, and fluorescent green) across the CIE chromaticity diagram. By leveraging this unique time-resolved color transition mechanism, programmable information encryption and dynamic fluorescent patterning with temporal precision are demonstrated. This work not only advances the design of stimuli-responsive luminescent materials but also provides a versatile platform for next-generation optical security systems","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 29","pages":""},"PeriodicalIF":7.2,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145284835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Intense Photoluminescence in Erbium-Ion-Implanted Lithium Niobate Thin Films and Its Interplay with Lattice Defects 铒离子注入铌酸锂薄膜的强光致发光及其与晶格缺陷的相互作用

IF 7.2 2区材料科学

Advanced Optical Materials Pub Date : 2025-08-22 DOI: 10.1002/adom.202502568

Liangling Wang, Sören Lerner, Houbin Zhu, Xiaojun Cui, Binge Zeng, Fengkai Wei, Elke Wendler, Carsten Ronning

{"title":"Intense Photoluminescence in Erbium-Ion-Implanted Lithium Niobate Thin Films and Its Interplay with Lattice Defects","authors":"Liangling Wang, Sören Lerner, Houbin Zhu, Xiaojun Cui, Binge Zeng, Fengkai Wei, Elke Wendler, Carsten Ronning","doi":"10.1002/adom.202502568","DOIUrl":"https://doi.org/10.1002/adom.202502568","url":null,"abstract":"Erbium-doped lithium niobate on insulator (Er-LNOI) has attracted significant attention for its potential in integrated photonics and quantum applications due to its efficient 1540 nm emission in the telecom band. In this work, the lattice damage and infrared photoluminescence of Er-LNOI fabricated via Er ion implantation and subsequent thermal annealing is investigated. Damage profiles are analyzed using Rutherford backscattering spectrometry in channeling mode (RBS/C), revealing the formation of an amorphous layer during ion implantation. However, re-crystallization into an Er-doped LNOI single crystal occurs with some remaining dislocation loops after annealing. Photoluminescence measurements at room temperature demonstrate intense infrared emission with no evidence of Er clustering and concentration quenching up to an Er fluence of 2.63 × 101⁵ ions cm2. Power- and temperature-dependent PL spectra suggest stable emission and distinct thermal quenching mechanisms for the two Stark-split transitions. The results confirm the effective optical activation of single crystalline Er-LNOI and highlight its promise for on-chip light sources and active photonic devices.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 29","pages":""},"PeriodicalIF":7.2,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202502568","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145284840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

From Invisible to Visible: Pressure-Responsive Photonic Crystals for Advanced Information Encryption 从不可见到可见：用于高级信息加密的压力响应光子晶体

IF 7.2 2区材料科学

Advanced Optical Materials Pub Date : 2025-08-22 DOI: 10.1002/adom.202501703

Zongzhe Li, Miguel A. Soto, Wadood Y. Hamad, Mark J. MacLachlan

{"title":"From Invisible to Visible: Pressure-Responsive Photonic Crystals for Advanced Information Encryption","authors":"Zongzhe Li, Miguel A. Soto, Wadood Y. Hamad, Mark J. MacLachlan","doi":"10.1002/adom.202501703","DOIUrl":"https://doi.org/10.1002/adom.202501703","url":null,"abstract":"Counterfeiting has emerged as an increasingly severe global concern, posing significant threats to the security of individuals and society. In this study, a series of multilayered information-encrypted composite materials is developed by embedding a chiral nematic cellulose nanocrystal (cn-CNC) film inside a shape-memory polymer (SMP) matrix to produce pressure-responsive photonic crystals. The design also incorporates a cellulose acetate film, as a thermoset information carrier, and graphene oxide (GO), as a secrecy filter. In its initial state, the composite shows no information, while a pattern becomes visible to reveal the information upon hot-pressing, due to the region-dependent differences in its photonic responsiveness caused by the rigid pattern. A discernible mark remains even after recovery, serving as tangible evidence of the decrypted information. Moreover, the high color fidelity of these materials is confirmed using reflectance spectroscopy and color analysis over multiple cycles, demonstrating their potential in cyclic information encryption. By harnessing thermal and mechanical stimuli for anti-counterfeiting purposes, these composites diversify the strategies available for information encryption.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 29","pages":""},"PeriodicalIF":7.2,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202501703","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145284836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dual-Mode Defect-Engineered MoS2/SnSe2 Heterostructures via Heavy Ion Irradiation for Solar-Blind UV Photodetection and Neuromorphic Optoelectronics 基于重离子辐照的双模缺陷工程MoS2/SnSe2异质结构用于太阳盲紫外光探测和神经形态光电子学

IF 7.2 2区材料科学

Advanced Optical Materials Pub Date : 2025-08-20 DOI: 10.1002/adom.202501738

Shengxia Zhang, Pengliang Zhu, Shifan Gao, Jiande Liu, Lijun Xu, Pengfei Zhai, Jie Liu

{"title":"Dual-Mode Defect-Engineered MoS2/SnSe2 Heterostructures via Heavy Ion Irradiation for Solar-Blind UV Photodetection and Neuromorphic Optoelectronics","authors":"Shengxia Zhang, Pengliang Zhu, Shifan Gao, Jiande Liu, Lijun Xu, Pengfei Zhai, Jie Liu","doi":"10.1002/adom.202501738","DOIUrl":"https://doi.org/10.1002/adom.202501738","url":null,"abstract":"\u00002D transition metal dichalcogenide (2D-TMDC) heterostructures hold transformative potential for optoelectronics, yet extending their spectral response to the solar-blind ultraviolet (SBUV, 200–280 nm) range while enabling neuromorphic functionalities remains challenging. A heavy ion irradiation-enabled defect engineering strategy is presented to achieve dual-mode optoelectronic operation in MoS2/SnSe2 heterostructures. Controlled irradiation simultaneously introduces latent track defects within channels and interfacial trap states. The engineered defects extend photoresponsivity to 200 nm (19.2 A W−1), setting a new benchmark for SBUV detection in 2D materials, while interfacial states enable optoelectronic synaptic operations with short/long-term plasticity (STP/LTP) at 255 and 532 nm, demonstrating robust operation across wavelengths. Systematic characterization of paired-pulse facilitation (PPF) and long-term potentiation under repeated light stimuli confirms reproducible synaptic responses and enhanced state stability in irradiated devices. The engineered channel defects modify the band structure to facilitate SBUV photodetection, whereas the created interfacial trap states provide the necessary charge storage capability for neuromorphic computation. This work establishes heavy ion irradiation as a universal tool for multifunctional 2D optoelectronics, enabling concurrent SBUV photodetection and neuromorphic signal processing. The defect-mediated band/carrier engineering paradigm provides an atomic-scale blueprint for merging conventional optoelectronics with bio-inspired computing architectures.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 29","pages":""},"PeriodicalIF":7.2,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145284834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Eu2+ Doping Driven Polymorphic Transition in Sr2SiO4 Glass Ceramic for Optical Property Tailoring and Multifunctional Photonic Applications Eu2+掺杂驱动Sr2SiO4玻璃陶瓷的多态转变及其光学特性裁剪和多功能光子应用

IF 7.2 2区材料科学

Advanced Optical Materials Pub Date : 2025-08-20 DOI: 10.1002/adom.202501563

Tao Hu, Hong Yang, Yulan Guo, Jiaqi Huang, Yan Gao, Hang Lin

{"title":"Eu2+ Doping Driven Polymorphic Transition in Sr2SiO4 Glass Ceramic for Optical Property Tailoring and Multifunctional Photonic Applications","authors":"Tao Hu, Hong Yang, Yulan Guo, Jiaqi Huang, Yan Gao, Hang Lin","doi":"10.1002/adom.202501563","DOIUrl":"https://doi.org/10.1002/adom.202501563","url":null,"abstract":"Polycrystalline phase transition provides an effective method to modulate structure of luminescent materials, offering a promising pathway for expanding optical properties and adaptive optoelectronic applications. In this study, for the first time the controlled β → ɑ phase-transition engineering is reported in Sr2SiO4:Eu2+ glass ceramic (GC) through chemical doping of Eu2+ ions, where the Eu2+ ions act dual-functionally as structural modulator and stabilizer. Molecular dynamics simulations reveal that Eu2⁺ doping does not significantly modify the short-range order of glass, indicating that the β → α phase transition primarily results from dopant-induced crystallization dynamics. Interestingly, the α-phase variant demonstrates thermochromic properties, enabling fluorescent anti-counterfeiting applications; while the β-phase variant shows superior thermal stability (82% photoluminescence remained at 423 K), excellent water-resistance, and extraordinarily stable color emission, making it suitable for high-quality lighting with color rendering index up to 95. This work provides a new thought of designing a GC platform via controllable polymorphic phase transition toward multifunctional photonic applications.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 29","pages":""},"PeriodicalIF":7.2,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145284790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Engineering Random Copolymers With Medium- and Narrow-Bandgap Segments for Shortwave Infrared Organic Photodetectors Featuring Low Dark Current and Enhanced Detectivity 用于低暗电流和增强探测率的短波红外有机光电探测器的中窄带段工程无规共聚物

IF 7.2 2区材料科学

Advanced Optical Materials Pub Date : 2025-08-20 DOI: 10.1002/adom.202501536

Yu-Tang Hsiao, Lin-Chieh Cheng, Ping-Yen Chen, Gajendra Suthar, Chuang-Yi Liao, Fang-Ning Li, Jheng-Kun Wu, Cheng-En Tsai, Fang-Chung Chen, Yi-Ming Chang

{"title":"Engineering Random Copolymers With Medium- and Narrow-Bandgap Segments for Shortwave Infrared Organic Photodetectors Featuring Low Dark Current and Enhanced Detectivity","authors":"Yu-Tang Hsiao, Lin-Chieh Cheng, Ping-Yen Chen, Gajendra Suthar, Chuang-Yi Liao, Fang-Ning Li, Jheng-Kun Wu, Cheng-En Tsai, Fang-Chung Chen, Yi-Ming Chang","doi":"10.1002/adom.202501536","DOIUrl":"https://doi.org/10.1002/adom.202501536","url":null,"abstract":"Organic photodetectors (OPDs) hold great promise for shortwave infrared (SWIR) applications. However, their path toward commercialization remains dependent on breakthroughs in material innovation. A key challenge lies in a general trade-off observed across previous studies: extending the spectral response toward longer wavelengths often results in elevated dark current density (Jdark) and reduced external quantum efficiency (EQE), which are inherently conflicting performance metrics, thereby limiting detectivity (D*). To overcome this, a novel strategy based on random copolymerization by introducing a medium-bandgap segment into the narrow-bandgap polymer backbone is proposed. This design preserves SWIR absorption while suppressing leakage current, enabling the simultaneous retention of EQE and reduction of Jdark. By systematically tuning the composition ratio between medium- and narrow-bandgap segments, the optoelectronic properties to break the traditional trade-off and significantly improve D* is optimized. The optimized device achieved a D* of 1.07 × 1011 Jones at 1300 nm, with an EQE of 17.6% and a Jdark of 9.3 × 10−6 A/cm2. To the best of this knowledge, this represents one of the best results to date, underscoring the potential of this copolymer design as a highly effective strategy for advancing SWIR OPD technology.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 29","pages":""},"PeriodicalIF":7.2,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145284792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermal/Water-Stable CsPbX3@SiOx Core–Shell Quantum Dots for Inkjet Printing and Potential Color Converting Applications 热/水稳定CsPbX3@SiOx核壳量子点喷墨打印和潜在的颜色转换应用

IF 7.2 2区材料科学

Advanced Optical Materials Pub Date : 2025-08-19 DOI: 10.1002/adom.202500968

Seong Yeon Park, Gayoung Seo, Taeyeon Kim, Carina Pareja-Rivera, Fabian Pino, YoonGyo Kim, Jorge Simancas, Byeongsung Kim, Ignacio Utreras-Asenjo, Jhonatan Rodriguez-Pereira, Hyeonyeong Jo, JaeHong Park, Jin Ho Bang, Sofia Masi, Seog Joon Yoon, Iván Mora-Seró, Andrés F. Gualdrón-Reyes

{"title":"Thermal/Water-Stable CsPbX3@SiOx Core–Shell Quantum Dots for Inkjet Printing and Potential Color Converting Applications","authors":"Seong Yeon Park, Gayoung Seo, Taeyeon Kim, Carina Pareja-Rivera, Fabian Pino, YoonGyo Kim, Jorge Simancas, Byeongsung Kim, Ignacio Utreras-Asenjo, Jhonatan Rodriguez-Pereira, Hyeonyeong Jo, JaeHong Park, Jin Ho Bang, Sofia Masi, Seog Joon Yoon, Iván Mora-Seró, Andrés F. Gualdrón-Reyes","doi":"10.1002/adom.202500968","DOIUrl":"https://doi.org/10.1002/adom.202500968","url":null,"abstract":"Ligand-mediated surface passivation is widely used to fill defect sites and stabilize perovskite nanoparticles, keeping their photophysical properties unchanged. However, this strategy can promote the growth of agglomerates, quenching the luminescence of nanoparticles. Additionally, the presence of bulky ligands can hinder the interparticle carrier transport, difficulting the fabrication of efficient optoelectronic devices. In this work, the synthesis of SiOx-covered CsPbX3 PQDs (CsPbX3@SiOx) is performed through a modified ligand-assisted reprecipitation method (LARP), by adding 3-aminopropyl-triethoxysilane (APTES) and oleic acid to the mixture reaction. Here, it is possible to suppress the aggregates formation, achieving water-stable single core–shell PQDs with a photoluminescence quantum yield of up to 99.4% and facile bandgap modulation by varying the halide content. Accordingly, CsPbX3@SiOx PQDs inks are obtained for preparing inkjet-printed QR codes and color converters, with stable luminescence up to 1.5 and 9 h of continuous operation at 2.5 V for Cl/Br- and Br-perovskites, respectively. Interestingly, a PL splitting is observed for the Br/I-perovskite along the time, indicating the emergence of halide migration to generate Br- and I-rich domains, mediating the generation of white color emission. This contribution offers a prominent alternative to producing single PQDs with suitable optical properties and stability for developing promising LED technologies.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 29","pages":""},"PeriodicalIF":7.2,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202500968","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145284877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrasensitive Electrochemiluminescence Biosensor Based on G-quadruple Structure Targeted with Platinum(II) Complexes for Early Biomarker Detection of Disease 基于铂（II）配合物靶向g -四重结构的超灵敏电化学发光生物传感器用于疾病早期生物标志物检测

IF 7.2 2区材料科学

Advanced Optical Materials Pub Date : 2025-08-19 DOI: 10.1002/adom.202501324

Wanzhen Chen, Wenyi Zhang, Ziqi Lian, Ying Ma, Jiaju Mo, Jianqiang Hu, Shulin Huang, Aiqing Li

{"title":"Ultrasensitive Electrochemiluminescence Biosensor Based on G-quadruple Structure Targeted with Platinum(II) Complexes for Early Biomarker Detection of Disease","authors":"Wanzhen Chen, Wenyi Zhang, Ziqi Lian, Ying Ma, Jiaju Mo, Jianqiang Hu, Shulin Huang, Aiqing Li","doi":"10.1002/adom.202501324","DOIUrl":"https://doi.org/10.1002/adom.202501324","url":null,"abstract":"The determination of biomarkers is of key importance for the early diagnosis and treatment of diseases. However, it remains a tremendous challenge for rapid, accurate and real time detection of biomarkers at the early stage of diseases due to its extremely low content and serious interference. Herein, ultrasensitive electrochemiluminescence (ECL) biosensor is successfully constructed through specific binding between morpholinyl-functionalized emissive Pt(II) (M-Pt) nanocomplexes with aggregation-induced emission and ECL properties and G-quadruplex DNA via π–π stacking interactions. Combined with catalytic hairpin assembly, the ultrasensitive ECL biosensor is utilized to detect miRNA-21 at early diseases. The biosensor can acquire ≈5-fold ECL signal enhancement in the presence of miRNA-21 compared with that in the absence of miRNA-21 and has high sensitivity, wide linear range (1 fm–100 pm), low limit of detection (≈0.33 fm) and good stability and selectivity. The ultrasensitive ECL biosensor is successfully applied to determine miRNA-21 in the urine samples of early-stage kidney patients and has great prospects for universally screening any kind of biomarkers with corresponding specific targets.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 29","pages":""},"PeriodicalIF":7.2,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145284882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Strongly-Confined Small-Size Perovskite Quantum Dots for Pure-Color Light Emitting Diodes 纯色发光二极管用强约束小尺寸钙钛矿量子点

IF 7.2 2区材料科学

Advanced Optical Materials Pub Date : 2025-08-19 DOI: 10.1002/adom.202502048

Yuqin Su, Ying Zhou, Hengyang Xiang, Maria A. Sandzhieva, Sergey V. Makarov, Zhesheng Chen, Haibo Zeng

{"title":"Strongly-Confined Small-Size Perovskite Quantum Dots for Pure-Color Light Emitting Diodes","authors":"Yuqin Su, Ying Zhou, Hengyang Xiang, Maria A. Sandzhieva, Sergey V. Makarov, Zhesheng Chen, Haibo Zeng","doi":"10.1002/adom.202502048","DOIUrl":"https://doi.org/10.1002/adom.202502048","url":null,"abstract":"Perovskite quantum dots (PQDs) are a promising candidate for next-generation displays owing to their tunable spectra and narrow linewidth. The mixed-halide perovskites applied in their light-emitting diodes (LEDs) and pure-color displays show unstable spectra due to halide segregation, which can be avoided by using single-halide I-based and Br-based PQDs with strong confinement effects. In this review, the development of strongly confined PQDs for pure-color LEDs is summarized. Focusing on the confinement effect, the unique exciton behaviors and corresponding possible effect on the LEDs, alongside summarizing the applied methods to regulate the perovskite particle sizes, are presented. Then, the low conductivity of confined PQDs with excessive insulating ligands or matrix is analyzed, and the corresponding strategies proposed to increase the carrier injection are listed. Subsequently, some effective fabrication innovations to improve the performance of LEDs are concluded. With the presentation of the development trend of pure-red and pure-blue LEDs, some challenges and opportunities on the understanding of the mechanism, redshift during the post-treatment, and device efficiency improvement are proposed in the last part.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 29","pages":""},"PeriodicalIF":7.2,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145284831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0