Advanced Optical Materials最新文献_第9页

Building Scalable Silicon Microring Resonator-Based Neuromorphic Photonic Circuits Using Post-Fabrication Processing with Photochromic Material 利用光致变色材料后处理技术构建可扩展硅微环谐振器神经形态光子电路

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-03-20 DOI: 10.1002/adom.202402706

Lei Xu, Jiawei Zhang, Eli A. Doris, Simon Bilodeau, Jesse A. Wisch, Manting Gui, Yusuf O. Jimoh, Bhavin Shastri, Barry P. Rand, Paul R. Prucnal

{"title":"Building Scalable Silicon Microring Resonator-Based Neuromorphic Photonic Circuits Using Post-Fabrication Processing with Photochromic Material","authors":"Lei Xu, Jiawei Zhang, Eli A. Doris, Simon Bilodeau, Jesse A. Wisch, Manting Gui, Yusuf O. Jimoh, Bhavin Shastri, Barry P. Rand, Paul R. Prucnal","doi":"10.1002/adom.202402706","DOIUrl":"https://doi.org/10.1002/adom.202402706","url":null,"abstract":"Neuromorphic photonics has become one of the research forefronts in photonics, with its benefits in low-latency signal processing and potential in significant energy consumption reduction when compared with digital electronics. With artificial intelligence (AI) computing accelerators in high demand, one of the high-impact research goals is to build scalable neuromorphic photonic integrated circuits which can accelerate the computing of AI models at high energy efficiency. A complete neuromorphic photonic computing system comprises seven stacks: materials, devices, circuits, microarchitecture, system architecture, algorithms, and applications. Here, we consider microring resonator (MRR)-based network designs toward building scalable silicon integrated photonic neural networks (PNN), and variations of MRR resonance wavelength from the fabrication process and their impact on PNN scalability. Further, post-fabrication processing using organic photochromic layers over the silicon platform is shown to be effective for trimming MRR resonance wavelength variation, which can significantly reduce energy consumption from the MRR-based PNN configuration. Post-fabrication processing with photochromic materials to compensate for the variation in MRR fabrication will allow a scalable silicon system on a chip without sacrificing today's performance metrics, which will be critical for the commercial viability and volume production of large-scale silicon photonic circuits.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 11","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202402706","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143831223","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

Highly Efficient Non-Doped Phosphorescent Blue OLEDs with Novel Asymmetric Iridium(III) Complexes 新型不对称铱（III）配合物的高效非掺杂磷光蓝色oled

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-03-20 DOI: 10.1002/adom.202403273

Xin Wang, Chengcheng Wu, Kai-Ning Tong, Wei He, Kefei Shi, Siqi Li, Zhaoyun Jin, Sinyeong Jung, Zhichun Si, Youwei Yao, Guodan Wei, Feiyu Kang

{"title":"Highly Efficient Non-Doped Phosphorescent Blue OLEDs with Novel Asymmetric Iridium(III) Complexes","authors":"Xin Wang, Chengcheng Wu, Kai-Ning Tong, Wei He, Kefei Shi, Siqi Li, Zhaoyun Jin, Sinyeong Jung, Zhichun Si, Youwei Yao, Guodan Wei, Feiyu Kang","doi":"10.1002/adom.202403273","DOIUrl":"https://doi.org/10.1002/adom.202403273","url":null,"abstract":"In this study, three phenylimidazole (pmi)-based asymmetric iridium(III) complexes are successfully developed as promising emitters for non-doped blue organic light emitting diodes (OLEDs). The Ir-3 exhibited blue emission with peak located at 470 nm and a high photoluminescent quantum yield (ΦPL) of 65% in non-doped film. Single crystal X-ray diffraction analysis revealeds that Ir-3 has increased steric hindrance from bulky tert-butyl groups that effectively suppressed π–π stacking and minimized exciton quenching. The non-doped device based on Ir-3 exhibited superior electroluminescent properties, including a low turn-on voltage of 2.80 V, and achieved maximum efficiencies of external quantum efficiency (EQEmax) of 18.01%, a high power efficiency (PE) of 31.52 lm W−1, which outperform previously reported blue non-doped phosphorescent OLEDs. Moreover, Ir-3-based non-doped devices closely matched the performance of doped counterparts, demonstrating high color stability and strong emission in the blue region of emission peak of 471 nm and CIE coordinates of (0.164, 0.208). This work highlights the potential of robust Ir-3 as a promising emitter for high efficiency, stable blue OLEDs, offering a simplified, host-free device architecture that maintains performance and provides a practical path forward for next-generation display and lighting applications.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 12","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861538","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

Ketocyanine-Based Materials for Near Infrared-to-Visible Thermochromism (Advanced Optical Materials 9/2025) 用于近红外-可见光热致变色的酮腈基材料（先进光学材料 9/2025）

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-03-20 DOI: 10.1002/adom.202570071

Alex Julià López, Noel Muñoz Pérez, Ruslan Magerramov, Mar Puyol, Ferran Crugeira, Sergey Miltsov, Daniel Ruiz-Molina, Claudio Roscini

引用次数: 0

Birefringent Color Filter by Layered Metal-Organic Chalcogenides: In-Plane Anisotropy and Odd/Even Effect (Advanced Optical Materials 9/2025) 层状金属有机钙钛矿双折射彩色滤光片：平面内各向异性和奇偶效应（先进光学材料 9/2025）

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-03-20 DOI: 10.1002/adom.202570073

Zichao Ye, Jie Zhao, Kisung Kang, Scott J. McCormack, Yu-Tsun Shao, Mikhail Y. Efremov, André Schleife, Waltraud M. Kriven, Jian-Min Zuo, Leslie H. Allen

{"title":"Birefringent Color Filter by Layered Metal-Organic Chalcogenides: In-Plane Anisotropy and Odd/Even Effect (Advanced Optical Materials 9/2025)","authors":"Zichao Ye, Jie Zhao, Kisung Kang, Scott J. McCormack, Yu-Tsun Shao, Mikhail Y. Efremov, André Schleife, Waltraud M. Kriven, Jian-Min Zuo, Leslie H. Allen","doi":"10.1002/adom.202570073","DOIUrl":"https://doi.org/10.1002/adom.202570073","url":null,"abstract":"Organic-Inorganic Hybrid CompositesIn article 2402159, Leslie H. Allen and co-workers reveal the birefringence in large single crystal silver alkanethiolate (AgSCn), as a result of in-plane structural anisotropy. The material is a promising candidate for pixels used in intelligent display. Therefore, the cover design starts with a screen display (with picture of flowers) and a single pixel is enlarged. In each pixel, an AgSCn crystal (the atomic structure cartoon) is sandwiched between two crossed polarizers. With such setup, the color of crystal (pictures taken on real samples on the right) exhibits dramatic change from blue to orange, and to purple simply by crystal rotation. A pixelated background was added to allude to the pixels in the display.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 9","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202570073","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143689172","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

Construction of Narrowed Deep-Blue Lighting Emitters Based on Fluorenyl Derivatives via Indolocarbazole Fused Modifying Strategy 基于吲哚咔唑熔融改性的氟芴基衍生物窄化深蓝发光材料的构建

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-03-17 DOI: 10.1002/adom.202403538

Feiyang Zhong, Baijun Zhang, Yu Huang, Baoxi Li, Xin He, Zhiming Wang, Ben Zhong Tang

{"title":"Construction of Narrowed Deep-Blue Lighting Emitters Based on Fluorenyl Derivatives via Indolocarbazole Fused Modifying Strategy","authors":"Feiyang Zhong, Baijun Zhang, Yu Huang, Baoxi Li, Xin He, Zhiming Wang, Ben Zhong Tang","doi":"10.1002/adom.202403538","DOIUrl":"https://doi.org/10.1002/adom.202403538","url":null,"abstract":"As a classic deep-blue light-emitting fluorophore, fluorene has constructed kinds of star blue emitters featuring tuning optical performances, but their derivatives with narrow-band emission characteristic are still relatively lacking for the requirement of high-resolution display. Here, a feasible strategy is proposed and implemented for improving traditional luminescent building-block, and an indolo[3,2,1-jk]carbazole (ICz) fragment is fused to fluorene framework via one-pot double-halide cyclized coupling (DHCC) reaction. Three fluorene and ICz-based derivatives via fusing-strategy all inherit narrowed emission performance, and show better deep-blue lighting behavior with stable electrical and thermal properties. By inserting large phenyl and spirofluorene, the intermolecular interactions in DPtIDCz and SFtIDCz are tuned significantly and show more saturated deep-blue lighting emission in non-doped OLEDs. Especially, the electroluminescence spectrum of SFtIDCz peaked at 402 nm with narrow full-width at half-maximum (FWHM) of 28 nm, and its CIE coordinate is removed to (0.166, 0.033) from (0.162, 0.051) of tIDCz, implying the importance in adjustment of side chain structure. These results demonstrate that the strategy of using DHCC reaction to achieve fused modification is highly feasible, and the derived materials can maintain commonly the characteristics of both, which have reference significance for the design of more narrow-emission building-blocks in the future.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 14","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074344","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

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