Advanced Optical Materials最新文献

Resonantly Enhanced Infrared Up-Conversion in Double-Step Asymmetric Subwavelength Grating Structure (Advanced Optical Materials 32/2024) 双阶非对称亚波长光栅结构中的共振增强型红外上转换（先进光学材料 32/2024）

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2024-11-14 DOI: 10.1002/adom.202470099

Lal Krishna Anitha Kumari Sreekantan Nair, Jyothsna Konkada Manattayil, Jayanta Deka, Rabindra Biswas, Varun Raghunathan

{"title":"Resonantly Enhanced Infrared Up-Conversion in Double-Step Asymmetric Subwavelength Grating Structure (Advanced Optical Materials 32/2024)","authors":"Lal Krishna Anitha Kumari Sreekantan Nair, Jyothsna Konkada Manattayil, Jayanta Deka, Rabindra Biswas, Varun Raghunathan","doi":"10.1002/adom.202470099","DOIUrl":"https://doi.org/10.1002/adom.202470099","url":null,"abstract":"Infrared Up-Conversion in Double-Step Asymmetric Subwavelength Grating StructureIn article number 2401070, Varun Raghunathan and co-workers study the nonlinear optical up-conversion of the mid-infrared to visible wavelength range through third-order sum-frequency generation (TSFG) process using novel double-step amorphous germanium one-dimensional sub-wavelength grating structures supporting quasi-bound states in the continuum (quasi-BIC) resonances in the mid-infrared (3–3.5 mm). One-dimensional dual step gratings on the quartz substrate are shown in the bottom part of the image. The primary (with central hole) and secondary mirrors inside the reflective objective are shown as discs (glassy brown) in the middle part. Cylindrical beams represent two mixing beams: pump (orange) and mid-infrared (pink) along with the generated TSFG signal (green). Pulses with arrows represent the incoming (illumination) and outgoing (collection) beams. The central obscuration caused by the secondary mirror is also clearly illustrated, which is the main theme of the work.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"12 32","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202470099","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142642219","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

Masthead: (Advanced Optical Materials 32/2024) 刊头：（先进光学材料 32/2024）

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2024-11-14 DOI: 10.1002/adom.202470104

引用次数: 0

Fiber-Integrated van der Waals Quantum Sensor with an Optimal Cavity Interface (Advanced Optical Materials 32/2024) 具有最佳腔体界面的光纤集成范德华量子传感器（先进光学材料 32/2024）

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2024-11-14 DOI: 10.1002/adom.202470096

Jong Sung Moon, Benjamin Whitefield, Lesley Spencer, Mehran Kianinia, Madeline Hennessey, Milos Toth, Woong Bae Jeon, Je-Hyung Kim, Igor Aharonovich

引用次数: 0

Large-Scale Fabrication of Room-Temperature Phosphorescence Cellulose Filaments with Color-Tunable Afterglows (Advanced Optical Materials 32/2024) 大规模制造具有颜色可调余辉的室温磷光纤维素灯丝（先进光学材料 32/2024）

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2024-11-14 DOI: 10.1002/adom.202470097

Fang Peng, Changjing Qiu, Pingping Wu, Songnan Hu, Pan Chen, Xingxing Li, Mengke Li, Zijian Chen, Shi-Jian Su, Haisong Qi

引用次数: 0

Wide-Bandgap RBa3(B3O6)3 (R = Nd, Sm, Tb, Dy, and Er) Single Crystals for Ultraviolet Nonlinear Optics (Advanced Optical Materials 32/2024) 用于紫外非线性光学的宽带隙 RBa3(B3O6)3（R = Nd、Sm、Tb、Dy 和 Er）单晶体（先进光学材料 32/2024）

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2024-11-14 DOI: 10.1002/adom.202470098

Saugata Sarker, Yu Wang, Caeli Benyacko, Yingdong Guan, Suguru Yoshida, Hemant Yennawar, Jingyang He, Zhiqiang Mao, Venkatraman Gopalan

引用次数: 0

Intense and Stable Blue Light Emission From CsPbBr3/Cs4PbBr6 Heterostructures Embedded in Transparent Nanoporous Films 嵌入透明纳米多孔膜的铯硼溴3/铯硼溴6异质结构发出强烈而稳定的蓝光

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2024-10-16 DOI: 10.1002/adom.202400763

Carlos Romero-Pérez, Natalia Fernández Delgado, Miriam Herrera Collado, Mauricio E. Calvo, Hernán Míguez

{"title":"Intense and Stable Blue Light Emission From CsPbBr3/Cs4PbBr6 Heterostructures Embedded in Transparent Nanoporous Films","authors":"Carlos Romero-Pérez, Natalia Fernández Delgado, Miriam Herrera Collado, Mauricio E. Calvo, Hernán Míguez","doi":"10.1002/adom.202400763","DOIUrl":"https://doi.org/10.1002/adom.202400763","url":null,"abstract":"Lead halide perovskite nanocrystals are attractive for light emitting devices both as electroluminescent and color-converting materials since they combine intense and narrow emissions with good charge injection and transport properties. However, while most perovskite nanocrystals shine at green and red wavelengths, the observation of intense and stable blue emission still remains a challenging target. In this work, a method is reported to attain intense and enduring blue emission (470–480 nm), with a photoluminescence quantum yield (PLQY) of 40%, originating from very small CsPbBr3 nanocrystals (diameter < 3 nm) formed by controllably exposing Cs4PbBr6 to humidity. This process is mediated by the void network of a mesoporous transparent scaffold in which the zero-dimensional Cs4PbBr6 lattice is embedded, which allows the fine control over water adsorption and condensation that determines the optimization of the synthetic procedure and, eventually, the nanocrystal size. The approach provides a means to attain highly efficient transparent and stable blue light-emitting films that complete the palette offered by perovskite nanocrystals for lighting and display applications.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"12 32","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202400763","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142642296","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

Dynamics of Nonlinear Optical Losses in Silicon-Rich Nitride Nano-Waveguides 富氮化硅纳米波导中的非线性光学损耗动力学

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2024-10-14 DOI: 10.1002/adom.202401299

Dmitrii Belogolovskii, Yeshaiahu Fainman, Nikola Alic

{"title":"Dynamics of Nonlinear Optical Losses in Silicon-Rich Nitride Nano-Waveguides","authors":"Dmitrii Belogolovskii, Yeshaiahu Fainman, Nikola Alic","doi":"10.1002/adom.202401299","DOIUrl":"https://doi.org/10.1002/adom.202401299","url":null,"abstract":"Free carrier absorption (FCA) is established to be the cause of nonlinear losses in plasma-enhanced chemical vapor deposition (PECVD) silicon-rich nitride (SRN) waveguides. To validate this hypothesis, a photo-induced current is measured in SRN thin films with refractive indices varying between 2.5 and 3.15 when a C-band laser light is illuminating the SRN films at various powers, indicating the generation of free carriers. Furthermore, nonlinear loss dynamics is, for the first time, measured and characterized in detail in SRN waveguides by utilizing high peak power C-band complex shape optical pulses for estimation of free carrier generation (FCG) and free carrier recombination (FCR) lifetimes and their dynamics. Both FCG and FCR are found to decrease with an increase in the refractive index of SRN, and, specifically, the FCR lifetimes are found (92 ± 7) ns, (39 ± 3) ns, and (31 ± 2) ns for the SRN indices of 2.7, 3, and 3.15, respectively. Lastly, nonlinear losses in high refractive index SRN waveguides are demonstrated to be minimized and altogether avoided when the pulse duration reduced below the free carrier generation lifetime, thus providing a way of taking a full advantage of the large inherent SRN nonlinear properties.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"12 32","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202401299","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142642109","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

Efficient, Stable Blue Light-Emitting Diodes Enabled by Heterostructural Alteration of ZnSeTe Quantum Dot and Functionalization of ZnMgO 通过改变 ZnSeTe 量子点的异质结构和 ZnMgO 的功能化实现高效、稳定的蓝色发光二极管

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2024-10-10 DOI: 10.1002/adom.202401085

Suk-Young Yoon, Yang-Hee Kim, Sun-Hyoung Lee, Hyungmin Yang, Dae-Yeon Jo, Hyun-Min Kim, Yuri Kim, Seong Min Park, Sin Won Choi, Heesun Yang

{"title":"Efficient, Stable Blue Light-Emitting Diodes Enabled by Heterostructural Alteration of ZnSeTe Quantum Dot and Functionalization of ZnMgO","authors":"Suk-Young Yoon, Yang-Hee Kim, Sun-Hyoung Lee, Hyungmin Yang, Dae-Yeon Jo, Hyun-Min Kim, Yuri Kim, Seong Min Park, Sin Won Choi, Heesun Yang","doi":"10.1002/adom.202401085","DOIUrl":"https://doi.org/10.1002/adom.202401085","url":null,"abstract":"Environment-benign ZnSeTe quantum dots (QDs) are regarded promising blue electroluminescent (EL) emitters alternative to Cd-based ones for the next-generation QD-display platform. Herein, the core/shell heterostructural variation of blue-emitting ternary ZnSeTe QDs by manipulating ZnSeTe core size (small versus large) and ZnSe inner shell thickness (thin versus thick), while ZnS outer shell thickness remains unaltered, is explored. EL outcomes of the resulting core/shell QDs having photoluminescence quantum yields of 59−80% within the blue color regime (454−463 nm) are found to be dependent on their heterostructural dimension, exhibiting the highest performances of 31709 cd m−2 in luminance and 11.4% in external quantum efficiency (EQE) from large-ZnSeTe/thick-ZnSe/ZnS QDs. Furthermore, to address the chronic issues of excessive electron injection and exciton quenching at emitting layer/electron transport layer (ETL) interface, the surface of ZnMgO (ZMO) nanoparticle (NP) is modified by bicarbonate functional species. Bicarbonate passivation not only leads to the effective reduction of defective sites on the ZMO NP surface toward the suppression of exciton quenching but induces the upshift of ETL band alignment in favor of charge balance. As a result, the optimized blue device incorporated with bicarbonate-functionalized ZMO NPs delivers a peak luminance of 39739 cd m−2 and a maximum EQE of 17.1%.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"12 32","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142641885","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-Assembled Biconvex Microlens Array Using Chiral Ferroelectric Nematic Liquid Crystals 利用手性铁电向列液晶自组装双凸透镜阵列

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2024-09-30 DOI: 10.1002/adom.202401507

Kelum Perera, Arwa Alyami, Alex Adaka, Md Sakhawat H. Himel, Nilanthi Haputhanthrige, Oleg D. Lavrentovich, Elizabeth Mann, Antal Jákli

引用次数: 0

Photoconvertible and Photoactivatable Perylene BisImide Based on Photocyclization 基于光环化的可光电转换和光活化的亚珀尔二酰亚胺

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2024-09-24 DOI: 10.1002/adom.202401511

Valentine Le Berruyer, Aurelie Perrier, Mayeul Collot

{"title":"Photoconvertible and Photoactivatable Perylene BisImide Based on Photocyclization","authors":"Valentine Le Berruyer, Aurelie Perrier, Mayeul Collot","doi":"10.1002/adom.202401511","DOIUrl":"https://doi.org/10.1002/adom.202401511","url":null,"abstract":"Photomodulable fluorophores constitute advanced materials as they possess the ability to modify their photophysical properties upon photoirradiation. A new mechanism of photoconversion is recently established, called Directed Photooxidation Induced Conversion based on the coupling of fluorophores with Aromatic Singlet oxygen Reactive Moieties (ASORMs). In this work, The Directed Photooxidation Induced Conversion (DPIC) mechanism is intended to be applied to Perylene BisImide (PBI) due to its appealing photophysical properties. The experimental results showed that coupling two ASORMs to the PBI core, here furan and pyrrole, led to impressive photomodulable fluorophores. While PBI-F exhibited a photoconversion of 100 nm shift, PBI-P displayed an 80-fold fluorescence intensity enhancement upon photoactivation. Analysis of the photoproducts showed that the conversion do not involve an addition of singlet oxygen on the ASORM. Instead, photoconversion occurred through efficient successive photocyclizations. Finally, intracellular vesicles are successfully photoconverted by means of endocytosed PLGA-polymer nanoparticles loaded with PBI-F. This study highlights the unique capability of furan- and pyrrole-conjugated fluorophores to enable advanced optical materials with phototransformation properties.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"12 32","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202401511","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142642360","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