Advanced Optical Materials最新文献_第7页

Hybrid Terahertz Emitter for Pulse Shaping and Chirality Control (Advanced Optical Materials 8/2025) 用于脉冲整形和手性控制的混合太赫兹发射器（Advanced Optical Materials 8/2025）

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-03-13 DOI: 10.1002/adom.202570069

Weipeng Wu, Wilder Acuna, Zhixiang Huang, Xi Wang, Lars Gundlach, Matthew F. Doty, Joshua M. O. Zide, M. Benjamin Jungfleisch

引用次数: 0

Prephase-Based Reconfigurable Joint Amplitude-Phase Control Metasurface for Multifunctional Scattering Manipulation (Advanced Optical Materials 8/2025) 面向多功能散射操作的基于预相的可重构联合幅相控制超表面（Advanced Optical Materials 8/2025）

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-03-13 DOI: 10.1002/adom.adom202570067

Kun Duan, Chenxi Fan, Ke Chen, Tian Jiang, Junming Zhao, Yijun Feng

引用次数: 0

Stimuli-Responsive Smart Glass with Switchable Unidirectional Light Source for Enhanced Privacy/Indoor Illumination (Advanced Optical Materials 8/2025) 具有可切换单向光源的刺激响应智能玻璃，增强隐私/室内照明（Advanced Optical Materials 8/2025）

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-03-13 DOI: 10.1002/adom.202570068

Chun-Ting Wu, Pravinraj Selvaraj, Yuan-Chang Tsai, Chi-Tang Huang, Ching-Cherng Sun, Ko-Ting Cheng

引用次数: 0

Electrically Tunable Coupling Between Band-Edge Lasing and Whispering Gallery Modes in Liquid Crystal Microdroplets 液晶微滴中带边激光和窃窃廊模式的电可调谐耦合

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-03-11 DOI: 10.1002/adom.202403124

Yu-Chuan Tsao, Hui-Yu Chen, Yang-Fang Chen

引用次数: 0

Modulation of Sharp-Line Red Emissions to Efficient Broadband Near-Infrared Luminescence in Cr3+-Activated Spinel Phosphors via Defect Engineering 利用缺陷工程调制Cr3+活化尖晶石荧光粉中锐利线红发射到高效宽带近红外发光

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-03-11 DOI: 10.1002/adom.202403507

Shijie Yu, Tingyu Lin, Qianxing Huang, Peigen Zhang, Leqi Yao, Chao Liang, Jianqing Jiang, Qiyue Shao

{"title":"Modulation of Sharp-Line Red Emissions to Efficient Broadband Near-Infrared Luminescence in Cr3+-Activated Spinel Phosphors via Defect Engineering","authors":"Shijie Yu, Tingyu Lin, Qianxing Huang, Peigen Zhang, Leqi Yao, Chao Liang, Jianqing Jiang, Qiyue Shao","doi":"10.1002/adom.202403507","DOIUrl":"https://doi.org/10.1002/adom.202403507","url":null,"abstract":"Spectral tuning toward longer emission wavelengths, while maintaining high quantum efficiency (QE) and thermal stability, remains a formidable challenge for near-infrared (NIR) luminescent materials. Herein, a Mg-deficiency strategy is proposed to achieve the redshift and broadening of Cr3+ emission in MgAl2O4 spinel without sacrificing QE and thermal stability. The emission spectrum shifts from sharp lines around 700 nm for stochiometric MgAl2O4:Cr3+ to an ultra-broadband centered at 860 nm for Mg-deficient Mg0.9Al2O3.9:Cr3+, with a profound increase in full width at half maximum (FWHM) from ≈85 to 303 nm. Meanwhile, the Mg0.9Al2O3.9:0.05Cr3+ phosphor exhibits an internal QE of 87% and can maintain 80% of initial emission intensity at 150 °C. Moreover, tunable emission bands peaking from 685 to 908 nm are achieved for Mg0.9Al2O3.9:xCr3+ by varying the Cr3+ concentration. The Cr3+ broadband emission can be attributed to the formation of AlMg anti-site defects, while the overall lattice contraction caused by the Mg-deficiency contributes to the maintenance of high QE and low thermal quenching. Finally, a NIR phosphor-converted light-emitting diode (pc-LED) is fabricated and its application in nondestructive testing is demonstrated. This study initiates a new way to improve the spectral performance of NIR phosphors while preserving high QE and thermal stability.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 14","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074607","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

Self-Powered, Broadband, and Polarization-Sensitive Photodetector with Nb-WS2/Ta2NiSe5 Van der Waals Heterostructure Nb-WS2/Ta2NiSe5范德华异质结构自供电、宽带、偏振敏感光电探测器

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-03-10 DOI: 10.1002/adom.202403463

Jinling Xie, Jiayue Han, Jiaming Jiang, Lixin Liu, Ziyi Fu, Jun Wang

{"title":"Self-Powered, Broadband, and Polarization-Sensitive Photodetector with Nb-WS2/Ta2NiSe5 Van der Waals Heterostructure","authors":"Jinling Xie, Jiayue Han, Jiaming Jiang, Lixin Liu, Ziyi Fu, Jun Wang","doi":"10.1002/adom.202403463","DOIUrl":"https://doi.org/10.1002/adom.202403463","url":null,"abstract":"Photodetectors play a crucial role in various applications, including communication, imaging, environmental monitoring, and security surveillance. However, developing photodetectors that can simultaneously achieve high sensitivity, high responsivity, low power consumption, polarization sensitivity, and broadband detection remains a significant challenge. In this investigation, the anisotropic properties of Ta₂NiSe₅ are utilized for mid-infrared polarization-sensitive photodetection and select suitable 2D materials to enhance device performance. Nb-WS₂/Ta₂NiSe₅ Van der Waals heterojunction photodetector with low power consumption and broadband response, covering the wavelength range from 405 nm to 3.5 µm, based on the built-in field. Additionally, the device shows excellent performance at 660 nm, with a responsivity of 57.64 A W−1, an external quantum efficiency (EQE) of 10 854%, rapid response (118 µs), and recovery times (13 µs). Furthermore, the Nb-WS₂/Ta₂NiSe₅ structure modulates charge distribution at the interface, enhancing polarization sensitivity and the polarization ratio of 2.2 at 3.5 µm. This work provides a novel strategy for the development of multifunctional, high-performance photodetectors and opens new avenues for the design and application of next-generation advanced photodetection devices.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 14","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074234","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

Reservoir Computing with All-Optical Non-Fading Memory in a Self-Pulsing Microresonator Network 在自脉冲微谐振器网络中利用全光无衰减存储器进行存储计算

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-03-10 DOI: 10.1002/adom.202403133

Alessio Lugnan, Stefano Biasi, Alessandro Foradori, Peter Bienstman, Lorenzo Pavesi

{"title":"Reservoir Computing with All-Optical Non-Fading Memory in a Self-Pulsing Microresonator Network","authors":"Alessio Lugnan, Stefano Biasi, Alessandro Foradori, Peter Bienstman, Lorenzo Pavesi","doi":"10.1002/adom.202403133","DOIUrl":"https://doi.org/10.1002/adom.202403133","url":null,"abstract":"Photonic neuromorphic computing may offer promising applications for a broad range of photonic sensors, including optical fiber sensors, to enhance their functionality while avoiding loss of information, energy consumption, and latency due to optical-electrical conversion. However, time-dependent sensor signals usually exhibit much slower timescales than photonic processors, which also generally lack energy-efficient long-term memory. To address this, a first implementation of physical reservoir computing with non-fading memory for multi-timescale signal processing is experimentally demonstrated. This is based on a fully passive network of 64 coupled silicon microring resonators. This compact photonic reservoir is capable of hosting energy-efficient nonlinear dynamics and multistability. It can process and retain input signal information for an extended duration, at least tens of microseconds. This reservoir computing system can learn to infer the timing of a single input pulse and the spike rate of an input spike train, even after a relatively long period following the end of the input excitation. This operation is demonstrated at two different timescales, with approximately a factor of 5 difference. This work presents a novel approach to extending the memory of photonic reservoir computing and its timescale of application.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 11","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202403133","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830959","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

Revealing the Effect of Triplet–Triplet Annihilation Up-Conversion and Improving the Operational Lifetime by Exciton Management in Anthracene- and Pyrene-Based Blue Fluorescent OLEDs 揭示基于蒽基和比利牛斯基的蓝色荧光oled中三重-三重湮灭上转换和激子管理提高使用寿命的影响

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-03-10 DOI: 10.1002/adom.202403102

Jianhui Pan, Wei Liu, Lei Ying, Yue Yu, Xianfeng Qiao, Dezhi Yang, Yuguang Ma, Dongge Ma

{"title":"Revealing the Effect of Triplet–Triplet Annihilation Up-Conversion and Improving the Operational Lifetime by Exciton Management in Anthracene- and Pyrene-Based Blue Fluorescent OLEDs","authors":"Jianhui Pan, Wei Liu, Lei Ying, Yue Yu, Xianfeng Qiao, Dezhi Yang, Yuguang Ma, Dongge Ma","doi":"10.1002/adom.202403102","DOIUrl":"https://doi.org/10.1002/adom.202403102","url":null,"abstract":"Anthracene- and pyrene-based organic fluorescent molecules with hybridized local and charge-transfer (HLCT) process can achieve highly efficient exciton utilization through harvesting high-lying triplet (Tn, n ≥ 2) excitons via reverse intersystem crossing (hRISC) compared to conventional organic fluorescent molecules, but there exists a serious exciton loss caused by internal conversion (IC) from Tn to T1.Nowadays, the stability difference between anthracene- and pyrene-based HLCT materials in OLEDs is rarely understood. In this article, the aging properties of anthracene derivated PAC and pyrene derivated CPPCN in the fabricated blue fluorescent OLEDs are systematically studied through exciton dynamics theory, and transient electroluminance and impedance spectroscopy measurements. It's experimentally found that the triplet exciton loss caused by IC is responsible for the device degradation. Through doping fluorescent emitter and introducing triplet-triplet annihilation upconversion layers in emissive layer, the IC process is efficiently suppressed and the operational lifetime is enhanced by ≈5.2 and 16 times under the luminance of 1000 cd m−2 in PAC and CPPCN-based OLEDs, respectively. This work fully demonstrates the differences in the effects of anthracene and pyrene-based HLCT molecules on device stability, providing a basis for further improving the operational lifetime of blue fluorescent OLEDs based on HLCT molecules.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 11","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830961","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

Tuning Mechanoluminescence From Red to Near-Infrared Light in CaZnOS:Mn2+ CaZnOS:Mn2+从红光到近红外光的机械发光调谐

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-03-10 DOI: 10.1002/adom.202403472

Hongzhen Liu, Yuhe Shao, Chao Dou, Jing Zhao, Zhen Song, Quanlin Liu

{"title":"Tuning Mechanoluminescence From Red to Near-Infrared Light in CaZnOS:Mn2+","authors":"Hongzhen Liu, Yuhe Shao, Chao Dou, Jing Zhao, Zhen Song, Quanlin Liu","doi":"10.1002/adom.202403472","DOIUrl":"https://doi.org/10.1002/adom.202403472","url":null,"abstract":"Mechanoluminescence (ML) materials can convert mechanical energy into photoelectrons and have significant potential for applications in intelligent sensing, self-driven luminescent displays, and human-computer interaction. Among the numerous ML systems, Mn2+-doped wurtzite-based phosphors have become a prominent ML family. However, their ML emissions are typically confined to visible light, which substantially limits their utility in fields such as biomechanics and bioimaging. Here, it is demonstrated that the photoluminescence (PL) and ML emission of CaZnOS:Mn2+ can be tuned from the red to near-infrared light (peaked at 770 nm) by regulating the Mn2+ ion concentration. The electronic paramagnetic resonance, PL lifetime, and various spectra reveal that the near-infrared emission originates from the enhanced magnetic interaction of Mn2+ pairs due to intrinsic defects. The heavy Mn2+-doped CaZnOS elastomer with near-infrared ML emission exhibits distinct advantages over low Mn2+-doped CaZnOS with only red emission in the field of biomechanical imaging. This work achieves near-infrared emission in CaZnOS phosphors singly doped with Mn2+ ions for the first time, providing a perspective for spectra broadening of Mn2+ ions-doped phosphors.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 14","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074235","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

Few Photons Probe Third-Order Nonlinear Properties of Nanomaterials in a Plasmonic Nanocavity 等离子体纳米腔中纳米材料三阶非线性特性的少光子探测

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-03-07 DOI: 10.1002/adom.202403484

Anupa Kumari, MohammadReza Aghdaee, Mathis Van de Voorde, Oluwafemi Stephen Ojambati

引用次数: 0