Advanced Optical Materials最新文献_第9页

Realization of Secure Robotic Brain Via Programmable Metasurface with Robust High-Order BIC 利用鲁棒高阶 BIC 实现可编程元表面的安全机器人大脑

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2024-10-09 DOI: 10.1002/adom.202401611

Xiuyu Wang, Xiaoman Wang, Qun Ren, Jianwei You, Kaiwen Zou, Boxiang Yang, Zhihao Lan, Liu He, Wei E. I. Sha, Jianquan Yao

{"title":"Realization of Secure Robotic Brain Via Programmable Metasurface with Robust High-Order BIC","authors":"Xiuyu Wang, Xiaoman Wang, Qun Ren, Jianwei You, Kaiwen Zou, Boxiang Yang, Zhihao Lan, Liu He, Wei E. I. Sha, Jianquan Yao","doi":"10.1002/adom.202401611","DOIUrl":"https://doi.org/10.1002/adom.202401611","url":null,"abstract":"Terahertz waves can be widely used for short-range communication in complex indoor environments and non-destructive object detection applications. Metasurfaces are widely used in terahertz sensing and communication devices because they can modulate terahertz waves in multiple dimensions. Metamaterial robot brain can utilize metasurfaces' powerful direct modulation ability to achieve sensing and communication functions. The metasurface devices realized based on Dynamic Heterogeneous Redundancy (DHR) architecture can improve the confidentiality and security of terahertz wave wireless communication. While the intrinsic ohmic loss and quality factor of usual metallic metamaterials are usually low, the concept of bound states in the continuum (BIC) has been proposed for stronger terahertz-matter interactions. Among them, high-order BICs are of interest because of their strong robustness to structural defects. Therefore, an aluminium-graphene hybrid metasurface with high-order BIC is proposed. We have the principle of excitation of high-order BICs is investigated and creatively proposed with high robustness realized using the magnetical EIT effect. The robustness of the high-order BIC is also utilized to design security hardware based on DHR architecture. The designed secure hardware can satisfy the demand for an intelligent robotic brain to the internal terahertz wave confidential wireless communication.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"12 33","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142707489","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

Realizing Tunable Long Persistent Luminescent in Novel Cu2+-Doped NaGaO2 for Multi-Level Information Storage and Encryption

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2024-10-09 DOI: 10.1002/adom.202401775

Liang Liang, Heyi Yang, Yuqi Chen, Yang Ding, Fangyi Zhao, Qinan Mao, Meijiao Liu, Jiasong Zhong

{"title":"Realizing Tunable Long Persistent Luminescent in Novel Cu2+-Doped NaGaO2 for Multi-Level Information Storage and Encryption","authors":"Liang Liang, Heyi Yang, Yuqi Chen, Yang Ding, Fangyi Zhao, Qinan Mao, Meijiao Liu, Jiasong Zhong","doi":"10.1002/adom.202401775","DOIUrl":"https://doi.org/10.1002/adom.202401775","url":null,"abstract":"Anti-counterfeiting and encryption are key technologies for information transmission in modern society. However, most optical materials offer only a single fixed response mode, limiting their security level in advanced anti-counterfeiting applications. Exploring efficient and tunable long persistent luminescent (LPL) phosphors is urgently demanded and highly meaningful. In this work, a dual-site occupancy strategy is innovatively reported via Li+ doped NaGaO2: Cu2+ (NGO: Cu2+/Li+) phosphors for enhancing LPL properties. To be specific, Cu2+ initially occupies both Na and Ga sites in NaGaO2, producing orange–yellow LPL at 585 nm and near-infrared (NIR) emission at 712 nm, respectively. Furthermore, the introduction of Li+ will occupy the Na+ sites, attenuating the NIR emission and increasing the defect density of the oxygen-deficient states, which results in enhanced LPL intensity and prolonged afterglow time. Significantly, the obtained NGO:Cu2+/Li+ exhibits multi-emission modes with dynamic change of LPL time (10–20 min). More importantly, the NGO: Cu2+/Li+ has great potential applications in multi-level information storage and encryption.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"12 35","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142860499","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

Diffusion-Free Intramolecular Triplet–Triplet Annihilation Contributes to the Enhanced Exciton Utilization in OLEDs 无扩散分子内三重-三重湮灭有助于提高有机发光二极管中的激子利用率

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2024-10-09 DOI: 10.1002/adom.202401597

Sara Mattiello, Andrew Danos, Kleitos Stavrou, Alessandra Ronchi, Roman Baranovski, Domenico Florenzano, Francesco Meinardi, Luca Beverina, Andrew Monkman, Angelo Monguzzi

{"title":"Diffusion-Free Intramolecular Triplet–Triplet Annihilation Contributes to the Enhanced Exciton Utilization in OLEDs","authors":"Sara Mattiello, Andrew Danos, Kleitos Stavrou, Alessandra Ronchi, Roman Baranovski, Domenico Florenzano, Francesco Meinardi, Luca Beverina, Andrew Monkman, Angelo Monguzzi","doi":"10.1002/adom.202401597","DOIUrl":"https://doi.org/10.1002/adom.202401597","url":null,"abstract":"Triplet–triplet annihilation (TTA), or triplet fusion, is a biexcitonic process in which two triplet-excited molecules can combine their energy to promote one into an excited singlet state. To alleviate the dependence of the TTA rate and yield on triplet diffusion in both solid and solution environments, intramolecular TTA (intra-TTA) has been recently proposed in conjugated molecular systems able to hold multiple triplet excitons simultaneously. Developing from the previous demonstration of TTA performance enhancement in sensitized upconversion solutions, here similar improvements in triplet harvesting in solid-state films are reported under electrical excitation in organic light emitting diodes (OLEDs). At low dye concentration and low current densities, the intra-TTA active OLED shows a +40% improved external quantum efficiency with respect to the reference device, and a TTA spin-statistical factor f 4DPA of 0.4, close to that determined in fluid solution for the individual chromophore (0.45). These results therefore indicate the utility of this molecular design strategy across a wider range of TTA applications, and with particular utility in the further development of low-power TTA-enhanced OLEDs.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"12 33","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202401597","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142707490","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

One-Step Room Temperature Synthesis of Printable Carbon Quantum Dots Ink for Visual Encryption and High-Performance Photodetector

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2024-10-09 DOI: 10.1002/adom.202401886

Baishali Thakurta, Sobhan Hazra, Alapan Samanta, Adnan Nasir, Amresh Kumar Singh, Deepak Maurya, Bama Charan Mondal, Anupam Giri, Bhola Nath Pal, Monalisa Pal

{"title":"One-Step Room Temperature Synthesis of Printable Carbon Quantum Dots Ink for Visual Encryption and High-Performance Photodetector","authors":"Baishali Thakurta, Sobhan Hazra, Alapan Samanta, Adnan Nasir, Amresh Kumar Singh, Deepak Maurya, Bama Charan Mondal, Anupam Giri, Bhola Nath Pal, Monalisa Pal","doi":"10.1002/adom.202401886","DOIUrl":"https://doi.org/10.1002/adom.202401886","url":null,"abstract":"Carbon quantum dots (CQDs) have emerged as promising materials for optoelectronic applications and have garnered much interest as potential competitors to conventional inorganic or hybrid semiconductor quantum dots because of carbon's intrinsic merits of high stability, low cost, and environment-friendliness. The ability of easy formulation of functional ink of CQDs is necessary for the development of industrial-scale, reliable, inexpensive printing/coating processes, for its full exploitation in the ever-growing class of applications in sensors, optoelectronics, and energy storage and conversion. Here a facile one-step room-temperature synthesis of printable, fluorescent CQD ink is demonstrated. The as-synthesized fluorescent CQD ink is used for invisible fingerprint stamps, printing of micro-patterns, and soft lithographic patterning with a resolution down to 1.5 µm. This functional CQD ink is also used to fabricate a high-performance CQD-ZnO heterojunction ultraviolet (UV) photodetector with a photo-responsivity of 3.85 A W−1, detectivity of 6.78 × 1010 Jones, and an external quantum efficiency (EQE) of 15.3%. The enhanced device performance can be attributed to CQD's high photocurrent generation efficiency and rational combination of the asymmetric electrode materials. This work enables a high-temperature stable CQD fluorescent ink synthesis method to fulfill the processing requirements of printing and soft lithographic patterning for visual encryption and optoelectronics.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"12 36","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142868262","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

Efficient Molecular Array Control and Vapochromic Behavior Changes by Positional Isomer-Dependent Molecular Building Blocks (Advanced Optical Materials 28/2024) 位置异构体依赖性分子构件的高效分子阵列控制和汽相行为变化（先进光学材料 28/2024）

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2024-10-04 DOI: 10.1002/adom.202470086

Min-Ji Kim, Gwiung Nam, Mina Ahn, Soyoon Lee, Ho-Jin Son, Kyung-Ryang Wee

引用次数: 0

Masthead: (Advanced Optical Materials 28/2024) 刊头：（先进光学材料 28/2024）

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2024-10-04 DOI: 10.1002/adom.202470088

引用次数: 0

Pulsed-Laser Deposition of Ge-Doped BiTe Nanofilms and Their Application in Room-Temperature Long-Wave Infrared Photodetection (Advanced Optical Materials 28/2024) 脉冲激光沉积掺杂 Ge 的 BiTe 纳米薄膜及其在室温长波红外光探测中的应用（先进光学材料 28/2024）

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2024-10-04 DOI: 10.1002/adom.202470087

Wan Wang, Ximiao Wang, Jiandong Yao, Huanjun Chen, Guowei Yang

引用次数: 0

UVB Persistent Luminescence of CaF2:Gd3+ for Radiation Labeling and Tracing 用于辐射标记和追踪的 CaF2:Gd3+ 的 UVB 持久发光

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2024-10-03 DOI: 10.1002/adom.202401320

Wenting Zhao, Leipeng Li, Tao Li, Jianrong Qiu, Yanmin Yang

引用次数: 0

Ultrafast Silicon/Graphene Optical Nonlinear Activator for Neuromorphic Computing

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2024-10-03 DOI: 10.1002/adom.202401686

Ziwen Zhou, Chen Liu, Weiwei Zhao, Jingze Liu, Ting Jiang, Wenyi Peng, Jiawang Xiong, Hao Wu, Chi Zhang, Yunhong Ding, Francesco Da Ros, Xingyuan Xu, Kun Xu, Siqi Yan, Ming Tang

{"title":"Ultrafast Silicon/Graphene Optical Nonlinear Activator for Neuromorphic Computing","authors":"Ziwen Zhou, Chen Liu, Weiwei Zhao, Jingze Liu, Ting Jiang, Wenyi Peng, Jiawang Xiong, Hao Wu, Chi Zhang, Yunhong Ding, Francesco Da Ros, Xingyuan Xu, Kun Xu, Siqi Yan, Ming Tang","doi":"10.1002/adom.202401686","DOIUrl":"https://doi.org/10.1002/adom.202401686","url":null,"abstract":"Optical neural networks (ONNs) have shown great promise in overcoming the speed and efficiency bottlenecks of artificial neural networks. However, the absence of high-speed, energy-efficient nonlinear activators significantly impedes the advancement of ONNs and their extension to ultrafast application scenarios like real-time intelligent signal processing. In this work, a novel silicon/graphene ultrafast all-optical nonlinear activator, leveraging the hybrid integration of silicon slot waveguides, plasmonic slot waveguides, and monolayer graphene is demonstrated. Exploiting the exceptional picosecond-scale photogenerated carrier relaxation time of graphene, the response time of the activator is markedly reduced to ≈93.6 ps, establishing all-optical activator as the fastest known in silicon photonics to knowledge. Moreover, the all-optical nonlinear activator holds a low threshold power of 5.49 mW and a corresponding power consumption per activation of 0.51 pJ. Its feasibility and capability for use in ONNs, manifesting performance comparable with commonly used activation functions are experimentally confirmed. This breakthrough in speed and energy efficiency of all-optical nonlinear activators opens the door to significant improvements in the performance and applicability of ONNs.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"12 34","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762155","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

Infrared Photodetectors: Recent Advances and Challenges Toward Innovation for Image Sensing Applications 红外线光电探测器：图像传感应用的最新进展和创新挑战

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2024-10-03 DOI: 10.1002/adom.202401625

Muhammad Imran Saleem, Aung Ko Ko Kyaw, Jaehyun Hur

{"title":"Infrared Photodetectors: Recent Advances and Challenges Toward Innovation for Image Sensing Applications","authors":"Muhammad Imran Saleem, Aung Ko Ko Kyaw, Jaehyun Hur","doi":"10.1002/adom.202401625","DOIUrl":"https://doi.org/10.1002/adom.202401625","url":null,"abstract":"High-resolution infrared (IR) imaging technology holds substantial significance across diverse fields including biomedical imaging, environmental surveillance, and IR digital cameras. Current IR detectors used in commercial applications are based on ultra-high vacuum-processed traditional inorganic semiconductors like silicon or III-V compounds (e.g., Si, Ge, and InGaAs). However, the rapid advancements in applications such as autonomous vehicles, virtual reality, and point-of-care healthcare are driving an escalating need for innovative imaging technologies. This review aims to bridge the gap by exploring solution-processed semiconductor photodetectors (PDs), which offer distinct advantages including cost-effectiveness, tunable spectral response, and potential for multiple-exciton generation. These characteristics make them particularly suitable for optical communication, IR imaging, and biological monitoring applications. This review provides comprehensive insights into the research trends pertaining to solution-processed IR detectors and imagers based on colloidal quantum dots, perovskites, organic compounds, and 2D materials. The review commences with the current market worth of image sensors, the fundamental principles of single-pixel and multipixel array IR imagers, and key parameters used to assess IR detector performance. In essence, the review concludes with a summary of recent advancements and future prospects for next-generation IR PD devices and their potential application as an IR imager.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"12 33","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142707529","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