Advanced Photonics Research最新文献_第10页

Asymmetrical Absorption and Surface-Enhanced Raman Scattering Enhancement by Silver Nanoflower Metasurface 银纳米花金属表面的不对称吸收和表面增强拉曼散射增强作用

IF 3.7

Advanced Photonics Research Pub Date : 2024-06-19 DOI: 10.1002/adpr.202400066

Yi-Jun Jen, Jia-Ming Wang, Bo-Wei Zhan, Ching-Wei Yu, Qian-Hao Li

引用次数: 0

Optimizing SiGe–SiO2 Visible–Short-Wave Infrared Photoresponse by Modulating Interplay Between Strain and Defects Through Annealing 通过退火调节应变和缺陷之间的相互作用优化 SiGe-SiO2 可见短波红外光响应

IF 3.7

Advanced Photonics Research Pub Date : 2024-06-19 DOI: 10.1002/adpr.202300316

Muhammad Taha Sultan, Ionel Stavarache, Andrei Manolescu, Unnar Bjarni Arnalds, Valentin Serban Teodorescu, Halldor Gudfinnur Svavarsson, Snorri Ingvarsson, Magdalena Lidia Ciurea

{"title":"Optimizing SiGe–SiO2 Visible–Short-Wave Infrared Photoresponse by Modulating Interplay Between Strain and Defects Through Annealing","authors":"Muhammad Taha Sultan, Ionel Stavarache, Andrei Manolescu, Unnar Bjarni Arnalds, Valentin Serban Teodorescu, Halldor Gudfinnur Svavarsson, Snorri Ingvarsson, Magdalena Lidia Ciurea","doi":"10.1002/adpr.202300316","DOIUrl":"https://doi.org/10.1002/adpr.202300316","url":null,"abstract":"SiGe-SiO2-based structures present high interest for their high photosensitivity from visible to short-wavelength infrared. Herein, two postdeposition annealing procedures, that is, rapid thermal annealing (RTA) and rapid-like furnace annealing (FA), are compared. Both RTA and FA are performed at 600 °C for 1 min for SiGe nanocrystals (NCs) formation in SiO2 matrix in Si/SiO2/SiGe/SiO2 structures deposited by magnetron sputtering. The FA imitates RTA resulting in enhanced spectral response. X-ray diffraction, transmission electron microscopy, and Raman spectroscopy are carried out showing Ge-rich SiGe NCs with 11.3 ± 1.2 nm size for RTA and 9.4 ± 0.8 nm for FA. Photocurrent spectra for both structures show several peaks that are annealing dependent. The photocurrent intensity for FA samples is ≈7 times higher than RTA samples while cutoff wavelengths are slightly different, that is, 1365 nm for FA and 1375 nm for RTA. The FA structures show (at −1.5 V) over 4 A W−1 responsivity at 730 nm, 6.4 × 107 Jones detectivity at 735 nm, and 2.2 × 107 Jones at about 1210 nm. FA structures contain small SiGe NCs with incorporated residual strain, while RTA ones are formed of columnar SiGe NCs separated by SiGeOx amorphous regions and show increased tensile strain in the SiGe.","PeriodicalId":7263,"journal":{"name":"Advanced Photonics Research","volume":"5 8","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adpr.202300316","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141967289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of tert-Butylation on the Photophysics of Thermally Activated Delayed Fluorescence Emitters 叔丁基化对热激活延迟荧光发射器光物理学的影响

IF 3.7

Advanced Photonics Research Pub Date : 2024-06-19 DOI: 10.1002/adpr.202400022

Kalyani Thakur, Bas van der Zee, Oskar Sachnik, Constantin Haese, Robert Graf, Jasper J. Michels, Gert-Jan A. H. Wetzelaer, Charusheela Ramanan, Paul W. M. Blom

{"title":"Effect of tert-Butylation on the Photophysics of Thermally Activated Delayed Fluorescence Emitters","authors":"Kalyani Thakur, Bas van der Zee, Oskar Sachnik, Constantin Haese, Robert Graf, Jasper J. Michels, Gert-Jan A. H. Wetzelaer, Charusheela Ramanan, Paul W. M. Blom","doi":"10.1002/adpr.202400022","DOIUrl":"https://doi.org/10.1002/adpr.202400022","url":null,"abstract":"Thermally activated delayed fluorescence (TADF) emitters potentially can provide organic light-emitting diodes with 100% internal quantum efficiency by harvesting triplet excitons. Generally, TADF emitters are small molecules that are not applicable for solution processability. The addition of tert-butyl groups to the periphery of TADF emitters has proven to improve their solubility in various organic solvents, reduce aggregation-induced quenching, and enhance the photoluminescence quantum yield (PLQY). This article studies the photophysical influence of the tert-butyl group attached to an emitter with a carbazole acceptor and a triazine donor. The resulting t3CzTrz-F is a blue–green TADF emitter, in which the addition of a tert-butyl group increases the rate of reverse intersystem crossing (rISC), while simultaneously decreasing the nonradiative decay rate substantially. In addition, dilution of t3CzTrz-F in a host matrix in film results in an enhanced PLQY, which is associated with a decrease in the nonradiative decay constant, while there is no change in the rISC rate. Through a solid-state NMR study, the change in rISC and nonradiative rate upon tert-butylation by enlarged intermolecular spacing and reduced vibrational and rotational freedom is rationalized, resulting in improved photophysical performance.","PeriodicalId":7263,"journal":{"name":"Advanced Photonics Research","volume":"5 11","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adpr.202400022","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Widening the Gamut of Structural Colors of Gold via Insulator–Metal Bilayer Coatings 通过绝缘体-金属双层涂层拓宽金的结构颜色范围

IF 3.7

Advanced Photonics Research Pub Date : 2024-06-19 DOI: 10.1002/adpr.202300324

Md Abdur Rahman, Simon Wredh, Darya Burak, Joel K. W. Yang, So-Hye Cho, Seung Yong Lee, Sang Hoon Kim, Ji Young Byun

{"title":"Widening the Gamut of Structural Colors of Gold via Insulator–Metal Bilayer Coatings","authors":"Md Abdur Rahman, Simon Wredh, Darya Burak, Joel K. W. Yang, So-Hye Cho, Seung Yong Lee, Sang Hoon Kim, Ji Young Byun","doi":"10.1002/adpr.202300324","DOIUrl":"https://doi.org/10.1002/adpr.202300324","url":null,"abstract":"\u0000Tuning the color of Au has been a longstanding problem in the luxury industry. Conventional approaches, involving Au alloying, compromise purity and demand distinct alloy compositions for each hue. This study demonstrates a lithography-free method for generating structural colors on a gold surface by adjusting the thickness of titanium dioxide, a high-index dielectric. While color tuneability is limited if TiO2 is coated directly on the Au surface, a range of vivid colors can be generated if a 50−100 nm thick AuAl2 underlayer is used. AuAl2, an accepted alloy for purple gold, broadens the color gamut, providing a protective coating without diminishing gold purity. The reflectance dip of the bilayer structure exhibits a significant red shift with increasing thickness of the TiO2 layer, allowing diverse colors by TiO2 insulator tuning. Simulation studies corroborate experimental results, affirming that coating a TiO2 layer on the AuAl2 underlayer yields a wide range of colors. This method, based on thin-film interference, shows promise for widespread use, offering a broad spectrum of structural colors in an industry striving for diverse Au color representation.","PeriodicalId":7263,"journal":{"name":"Advanced Photonics Research","volume":"5 8","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adpr.202300324","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141967290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Upconversion of Infrared Light by Graphitic Microparticles Due to Photoinduced Structural Modification 光诱导结构改性导致石墨微粒对红外光的上转换

IF 3.7

Advanced Photonics Research Pub Date : 2024-06-19 DOI: 10.1002/adpr.202300326

Rohin Sharma, Nishma Bhattarai, Rijan Maharjan, Lilia M. Woods, Nirajan Ojha, Ashim Dhakal

引用次数: 0

Plasmon-Enhanced Optical Control of Magnetism at the Nanoscale via the Inverse Faraday Effect

IF 3.7

Advanced Photonics Research Pub Date : 2024-06-17 DOI: 10.1002/adpr.202400083

Sergii Parchenko, Kevin Hofhuis, Agne Åberg Larsson, Vassilios Kapaklis, Valerio Scagnoli, Laura Jane Heyderman, Armin Kleibert

{"title":"Plasmon-Enhanced Optical Control of Magnetism at the Nanoscale via the Inverse Faraday Effect","authors":"Sergii Parchenko, Kevin Hofhuis, Agne Åberg Larsson, Vassilios Kapaklis, Valerio Scagnoli, Laura Jane Heyderman, Armin Kleibert","doi":"10.1002/adpr.202400083","DOIUrl":"https://doi.org/10.1002/adpr.202400083","url":null,"abstract":"The relationship between magnetization and light has been the subject of intensive research for the past century. Herein, the impact of magnetization on light polarization is well understood. Conversely, the manipulation of magnetism with polarized light is being investigated to achieve all-optical control of magnetism, driven by potential technological implementation in spintronics. Remarkable discoveries, such as the single-pulse all-optical switching of magnetization in thin films and submicrometer structures, have been reported. However, the demonstration of local optical control of magnetism at the nanoscale has remained elusive. Herein, it is demonstrated that exciting gold nanodiscs with circularly polarized femtosecond laser pulses lead to ultrafast, local, and deterministic control of magnetization in an adjacent magnetic film. This control is achieved by exploiting the magnetic moment generated in plasmonic nanodiscs through the inverse Faraday effect. The results pave the way for light-driven control in nanoscale spintronic devices and provide important insights into the generation of magnetic fields in plasmonic nanostructures.","PeriodicalId":7263,"journal":{"name":"Advanced Photonics Research","volume":"6 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adpr.202400083","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143116113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent Advances in Molecular Engineering for Viologen-Based Electrochromic Materials: A Mini-Review 基于病毒的电致变色材料分子工程的最新进展：微型综述

IF 3.7

Advanced Photonics Research Pub Date : 2024-06-12 DOI: 10.1002/adpr.202400016

Bebin Ambrose, Murugan Krishnan, Kalaivanan Ramamurthy, Murugavel Kathiresan

{"title":"Recent Advances in Molecular Engineering for Viologen-Based Electrochromic Materials: A Mini-Review","authors":"Bebin Ambrose, Murugan Krishnan, Kalaivanan Ramamurthy, Murugavel Kathiresan","doi":"10.1002/adpr.202400016","DOIUrl":"10.1002/adpr.202400016","url":null,"abstract":"Viologens, with their unique redox-active properties, have garnered increasing attention in the development of electrochromic devices. This review focuses on key strategies in molecular design, synthesis methodologies, and tailored functionalities that have propelled the field forward from 2019 to the present. The convergence of these approaches has led to the construction of viologen-based electrochromic materials with enhanced performance, stability, and responsiveness. The review not only examines the current state of the field but also explores promising outlooks and opportunities, including tailored applications, environmental sustainability, and integration with emerging technologies. The synergy between molecular engineering and viologen-based electrochromic materials holds significant promise, shaping the future of dynamic, responsive materials in diverse technological domains. This review serves as a valuable resource for researchers, offering insights into recent breakthroughs and inspiring further advancements in this rapidly evolving field.","PeriodicalId":7263,"journal":{"name":"Advanced Photonics Research","volume":"5 10","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adpr.202400016","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141352141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Broadband Diffractive Neural Networks Enabling Classification of Visible Wavelengths 可对可见光波长进行分类的宽带衍射神经网络

IF 3.7

Advanced Photonics Research Pub Date : 2024-06-12 DOI: 10.1002/adpr.202470016

Ying Zhi Cheong, Litty Thekkekara, Madhu Bhaskaran, Blanca del Rosal, Sharath Sriram

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Progress on Coherent Perovskites Emitters: From Light-Emitting Diodes under High Current Density Operation to Laser Diodes 相干 Perovskites 发射器的研究进展：从高电流密度下的发光二极管到激光二极管

IF 3.7

Advanced Photonics Research Pub Date : 2024-06-12 DOI: 10.1002/adpr.202400033

Gayoung Lee, Yejin Jun, Hyeonji Lee, Kwangdong Roh

{"title":"Progress on Coherent Perovskites Emitters: From Light-Emitting Diodes under High Current Density Operation to Laser Diodes","authors":"Gayoung Lee, Yejin Jun, Hyeonji Lee, Kwangdong Roh","doi":"10.1002/adpr.202400033","DOIUrl":"10.1002/adpr.202400033","url":null,"abstract":"Perovskites exhibit appealing optical and electrical properties, making them attractive candidates for efficient luminescent materials with low-cost and straightforward fabrication processes. Their versatility is highlighted by the ability to deposit perovskite thin films on various substrates, including silicon, glass, sapphire, and flexible substrates, enabling potential monolithic integration on silicon for applications such as photonic integrated circuits, high-speed communication. Extensive studies on perovskite light-emitting diodes have shown external quantum efficiencies exceeding 20% across a wide spectral range from deep blue to near-infrared, with chirality. Additionally, perovskite-based lasing action has been achieved under pulsed optical excitation and continuous-wave operation, as well as in functional diode structures. However, realizing electrically driven perovskite laser diodes for practical applications requires the injection of intense current densities. This review provides a comprehensive overview of the historical progress in perovskite lasers and light-emitting didoes, along with important design considerations essential for their development.","PeriodicalId":7263,"journal":{"name":"Advanced Photonics Research","volume":"5 9","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adpr.202400033","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141353685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Modified Coupled-Mode Theory for the Absorption in Plasmonic Lattices 等离子体晶格吸收的修正耦合模理论

IF 3.7

Advanced Photonics Research Pub Date : 2024-06-12 DOI: 10.1002/adpr.202400050

Joshua T. Y. Tse, Shunsuke Murai, Katsuhisa Tanaka

引用次数: 0