检索结果-内蒙古大学图书馆

4th International Conference on Laser, Optics, and optoelectronic technology, LOPET 2024

作者： Li, Changjiang Deng, Yifeng Xiao, Zeyu Wu, Zipei Zhu, Lei Lin, Junxiong Peng, Xiao Yan, Wei Qu, Junle State Key Laboratory of Radio Frequency Heterogeneous Integration Shenzhen University Shenzhen518060 China College of Physics and Optoelectronic Engineering Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province Shenzhen University Shenzhen518060 China Engineering Research Center for Eco-Dyeing and Finishing of Textiles Ministry of Education Zhejiang Sci-Tech University Hangzhou310018 China Key Laboratory of Advanced Textile Materials and Manufacturing Technology Ministry of Education Zhejiang Sci-Tech University Hangzhou310018 China College of Textile Science and Engineering International Institute of Silk Zhejiang Sci-Tech University Hangzhou310018 China School of Medical Engineering and Technology Xinjiang Medical University Urumqi810017 China

ISBN: (纸本)9781510681903

Mulberry silk fabrics are very popular due to their soft lustre, comfortable handle and smooth texture. Currently, the traditional textile testing methods are deficient to provide a fast and sensitive directional detection way or quantitative characterization data to study different process stages of the textile. Here, we used crepe de chine as silk samples for microscopy detection. Both confocal fluorescence microscopy and fluorescence lifetime imaging microscopy (FLIM) methods have been applied into observing samples at different process stages to obtain their surface morphology and fluorescence lifetime distribution. The confocal results showed that the samples had autofluorescence under excitation at several wavelengths. The fluorescent intensities of different samples from a series of process stages of the silk manufacture or the air-dried pure sericin were obtained under the 640 nm excitation, which was used in the following FLIM experiments. FLIM results showed that in undyed group, the lifetime values of the raw silk fabric were around 2400 ps. The lifetime of the sample with partial sericin left were similar to those in the raw silk fabric while the intensities were decreased. The optical properties of the dyed fabrics were similar to the undyed group, but their lifetime values were lower than those of the undyed group, suggesting that the silk fabrics had different optical properties due to the factors including the residual amount of sericin and dyeing condition. Briefly, FLIM can provide a non-destructive method for real-time quantitative investigation of the silk fabrics at different process stages, providing information for parameters such as the residual amount of sericin. © 2024 SPIE.

关键词： Fluorescence imaging

来源：评论

学校读者我要写书评

暂无评论

Realization of the Unexpected Pattern in Solution-Processed OLED

Realization of the Unexpected Pattern in Solution-Processed ...

引用

International Conference on Display technology, ICDT 2022

作者： Su, Xiaozhe Zhong, Zhiming Peng, Feng Cui, Jing Li, Yingcheng Huang, Yangbing Ying, Lei Institute of Polymer Optoelectronic Materials and Devices State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou510640 China Sinopec Shanghai Research Institute of Petrochemical Technology Shanghai201208 China Dongguan VoltAmp Optoelectronics Technology Co. Ltd Dongguan523808 China

Electroluminescence with watermark-like shadow appeared in the organic light-emitting diodes (OLED) prepared through spin-coating procedure. The shadow was located on the emitting layer and originated from nonuniform contact between substrates and the substrate-holder. By modifying the holder, uniform electroluminescence with almost identical intensity in the whole device area could be achieved. © 2022, John Wiley and Sons Inc. All rights reserved.

关键词： Substrates

来源：评论

学校读者我要写书评

暂无评论

Improved Optical and Electronic Properties of Single-Layer MoS2 by Co Doping for Promising Intermediate-Band Materials 9th

Improved Optical and Electronic Properties of Single-Layer M...

引用

9th Annual International Conference on Material Science and Engineering, ICMSE 2021

作者： Li, Ai-Yu Shen, Han-Xin Wang, Xiao-Chun Department of Optoelectronics Xiamen University of Technology Xiamen361024 China Fujian Provincial Key Laboratory of Optoelectronic Technology and Devices Xiamen University of Technology Xiamen361024 China Institute of Atomic and Molecular Physics Jilin University Changchun130012 China

ISBN: (纸本)9783035715361

Owing to its unique optical and electronic characteristics, two-dimensional MoS2 has been widely explored in the past few years. Using first-principle calculations, we shed light on that the substitutional doping of Co can induce the half-filled intermediate states in the band gap of monolayer MoS2. The calculated absorption spectrum presents an enhancement of the low-energy photons (0.8 eV–1.5 eV), which is desired for intermediate-band solar cells. When the doping concentration increases, the reflectivity of the infrared and visible light (0.8 eV-4.0 eV) reduces, resulting in an improved photovoltaic efficiency of the material. Our results shed light on the application of heavily Co-doped MoS2 as intermediate band solar cell material. © 2022 Trans Tech Publications Ltd, Switzerland.

关键词： Monolayers

来源：评论

学校读者我要写书评

暂无评论

Bilayer carbon-based structure with the promotion of homogenous nucleation for lithium metal anodes

引用

Science China(Technological Sciences) 2022年第7期65卷 1558-1566页

作者： SHAO YeQing XIE YongHui YANG Yang CAO JiaQi LI XiuWan LI WangYang ZHANG QiaoLi CHENG ShouLin CHENG ShuYing WANG XingHui College of Physics and Information Engineering Institute of Micro-Nano Devices and Solar CellsFuzhou UniversityFuzhou 350108China Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou 350108China Fujian Provincial Key Laboratory of Light Propagation and Transformation College of Information Science and EngineeringHuaqiao UniversityXiamen 361000China Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering Changzhou 213000China Fujian Key Laboratory of Electrochemical Energy Storage Materials Fuzhou UniversityFuzhou 350002China

Lithium metal anodes (LMAs) are considered as the promising alternatives for next-generation high energy density batteries,but are still hampered by the severe growth of uncontrollable lithium *** growth of lithium dendrites induces poor cycling lifespan and serious safety concerns,dragging lithium metal batteries out of practical *** designed a bilayer carbonbased structure covered with Co/C nanosheets and vertical graphene sheets (VGS).The enormous specific surface area and uniformly distributed Co nanoparticles of the CC@Co/C-VGS host are derived from its unique design,which can reduce local current density and nucleation overpotential,resulting in a dendrite-free morphology and exceptional cycling *** cells exhibit over 400 cycles (800 h) at a high current density/capacity of 10 mA cm^(-2)/10 mA h cm^(-2).Full cells using LiFePO_(4)as the cathode have an enhanced rate capability and a prolonged lifespan,reaching 90 mA h g^(-1)after 1000 cycles at 2 C with 73.5% capacity *** unique design sheds light on developing high-performance LMAs.

关键词： lithiophilic material bilayer carbon structure graphene MOF lithium metal anode

来源：评论

学校读者我要写书评

暂无评论

Evolution of Interfacial Defects and Energy Losses During Aging of Organic Photovoltaics

SSRN

引用

SSRN 2023年

作者： Wang, Zhe Liu, Peng Huang, Yisong Liu, Wansheng Yap, Boonkar He, Zhicai Wu, Hongbin Institute of Polymer Optoelectronic Materials and Devices State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou510640 China South China University of Technology China

In this work, we studied the trap-state-dependent degradation mechanism of OSCs by directly making comparison between devices with different hole transport layers (HTLs) that could introduce different interfacial defect distributions. Using electrochemical impedance spectroscopy (EIS) measurements, Fourier transform photocurrent spectroscopy (FTPS), electroluminescence quantum efficiency (EQEEL) and temperature-dependent J-V techniques, the relationship between the device degradation and the interfacial trap states and energy loss were unraveled in PM6:Y6 devices. Lower density of the interfacial deep traps is clearly correlated with the smaller non-radiative recombination loss during the ageing of devices based on PEDOT:PSS, while higher density of deep traps in the aged devices with WS2 interlayer and HTL-free are supposed to be responsible for the significant increasement of non-radiative recombination loss. The increasing deep-trap-state density of the aged devices is found to increase the carrier recombination and hence degenerate the device performance. © 2023, The Authors. All rights reserved.

关键词： Organic solar cells

来源：评论

学校读者我要写书评

暂无评论

Generation of single solitons tunable from 3 to3.8μm in cascaded Er^(3+)-doped and Dy^(3+)-doped fluoride fiber amplifiers

引用

Photonics Research 2022年第9期10卷 2140-2146页

作者： LINPENG YU JINHUI LIANG SHITING HUANG JINZHANG WANG JIACHEN WANG XING LUO PEIGUANG YAN FANLONG DONG XING LIU QITAO LUE CHUNYU GUO SHUANGCHEN RUAN Shenzhen Key Laboratory of Laser Engineering Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics EngineeringKey Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong ProvinceCollege of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes Shenzhen Technology UniversityShenzhen 518118China Han’s Laser Technology Industry Group Co. Ltd.Shenzhen 518057China

High-power tunable femtosecond mid-infrared(MIR)pulses are of great interest for many scientific and industrial *** we demonstrate a compact fluoride-fiber-based system that generates single solitons tunable from 3 to 3.8μ*** system is composed of an Er:ZBLAN fiber oscillator and amplifier followed by a fusion-spliced Dy:ZBLAN fiber *** Er:ZBLAN fiber amplifier acts as a power booster as well as a frequency shifter to generate Raman solitons up to 3μ*** Dy:ZBLAN fiber amplifier transfers the energy from the residual 2.8μm radiation into the Raman solitons using an in-band pumping scheme,and further extends the wavelength up to 3.8μ*** residual pump radiation and secondary solitons accompanying the soliton self-frequency shift(SSFS)are recycled to amplify Raman solitons,consequently displaying a higher output power and pulse energy,a wider shifting range,and an excellent spectral *** 252 fs pulses at3.8μm with a record average power of 1.6 W and a pulse energy of 23 n J are *** work provides an effective way to develop high-power widely tunable ultrafast single-soliton MIR laser sources,and this method can facilitate the design of other SSFS-based laser systems for single-soliton generation.

关键词： fiber tunable amplifier

来源：评论

学校读者我要写书评

暂无评论

Electronic structures and multi-orbital models of La3Ni2O7 thin films at ambient pressure

arXiv

引用

arXiv 2025年

作者： Hu, Xunwu Qiu, Wenyuan Chen, Cui-Qun Luo, Zhihui Yao, Dao-Xin Department of Physics College of Physics and Optoelectronic Engineering Jinan University Guangzhou510632 China Center for Neutron Science and Technology Guangdong Provincial Key Laboratory of Magnetoelectric Physics and Devices State Key Laboratory of Optoelectronic Materials and Technologies School of Physics Sun Yat-Sen University Guangzhou510275 China

The recent discovery of superconductivity with a transition temperature Tc exceeding 40 K in La3Ni2O7 and (La,Pr)3Ni2O7 thin films at ambient pressure marks a significant breakthrough in the field of nickelate superconductors. Using density functional theory (DFT), we propose a double-stacked two-orbital effective model for La3Ni2O7 thin film based on the Ni−eg orbitals. Our analysis of the Fermi surface reveals three electron pockets (α, α′, β) and two hole pockets (γ, γ′), where the additional α′ and γ′ pockets arise from inter-stack interactions. Furthermore, we introduce a high-energy model that incorporates O−p orbitals to facilitate future studies. Calculations of spin susceptibility within the random phase approximation (RPA) indicate that magnetic correlations are enhanced by nesting of the γ pocket, which is predominantly derived from the Ni−dz2 orbital. Our results provide a theoretical foundation for understanding the electronic and magnetic properties of La3Ni2O7 thin films. Copyright © 2025, The Authors. All rights reserved.

关键词： Thin films

来源：评论

学校读者我要写书评

暂无评论

Self-temperature compensation approach for fiber specklegram magnetic field sensor based on polarization specklegram analysis 27

Self-temperature compensation approach for fiber specklegram...

引用

27th International Conference on Optical Fiber Sensors, OFS 2022

作者： Hu, Shicheng Liu, Haifeng Liu, Bo Lin, Wei Zhang, Hao Song, Binbin Wu, Jixuan Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology Institute of Modern Optics Nankai University Tianjin300350 China Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology Institute of Modern Optics Nankai University Tianjin300350 China Southern Marine Science and Engineering Guangdong Laboratory Zhuhai519000 China Key Laboratory of Computer Vision and Systems School of Computer Science and Engineering Tianjin University of Technology Ministry of Education Tianjin300384 China Tianjin Key Laboratory of Optoelectronic Detection Technology and Systems College of Electronic and Information Engineering Tianjin Polytechnic University Tianjin300387 China

We proposed a self-temperature-compensation approach for fiber specklegram sensor (FSS) based on polarization specklegram analysis, and designed a fiber specklegram magnetic field sensor with high stability and good r... 详细信息

ISBN: (纸本)9781957171142

关键词： Polarization

来源：评论

学校读者我要写书评

暂无评论

Photomultiplication-Type Perovskite Photodetectors Base on Air-Processed Perovskite Films

SSRN

引用

SSRN 2023年

作者： Tao, Sizhe Yang, Dezhi He, Guo Guo, Dechao Yang, Liqing Zheng, Jingbo Li, Ji Ma, Dongge Institute of Polymer Optoelectronic Materials and Devices Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou510640 China

Perovskites have shown potential applications in low-cost and high-performance optoelectronic devices because of their solution processability and inherent outstanding optoelectronic properties. Among them, perovskite photodetectors have been the focus of scientific researches. Here, a photomultiplication-type perovskite photodetector is successfully fabricated with the high-quality perovskite films by spinning-bathing-spinning method in ambient air, which overcomes the stringent environmental requirement of the preparation of perovskite films. The photomultiplication photoconductive gain is realized by the traps enhanced hole injection by capturing photogenerated carriers. The deep trap states provided by MoO3 capture the generated electrons in active layer, which causes the interfacial trap-assisted hole-tunneling injection, thus forming the gain. Consequently, the photomultiplication-type perovskite photodetector achieves a high external quantum efficiency above 50000% and exhibits a fast photoresponse time about 18.5 μs. © 2023, The Authors. All rights reserved.

关键词： Photodetectors

来源：评论

学校读者我要写书评

暂无评论

Advanced graphene metamaterial design for high-efficiency terahertz wave absorption

引用

Solar Energy Materials and Solar Cells 2025年 292卷

作者： Asif, Muhammad Algehyne, Ebrahem A. Alamrani, Fahad Maqbul Hussain, Shahid THz Technology Laboratory Shenzhen Key Laboratory of Micro-nano Photonic Information Technology Shenzhen University Shenzhen518060 China Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen518060 China Department of Mathematics Faculty of Science University of Tabuk Tabuk71491 Saudi Arabia Institute for Advanced Study Shenzhen University Shenzhen518060 China

Graphene is extensively used in photonic devices due to its various unique and extraordinary characteristics that are not familiar in conventional materials, especially its high electron mobility, ultra-thin width, functionality of integration, and excellent conductivity. In present investigation, we demonstrated a patterned graphene-based terahertz (THz) metamaterial absorber with combination of different materials, gold, silicon, stacked graphene, polymethyl methacrylate and strip patterned graphene layers, all differentiated by insulating dielectric layer. According to simulation results, this THz broadband absorber demonstrated polarization, electromagnetic field interaction, angle insensitive properties and almost perfect broadband absorption. The base of a structure is composition of various materials stacking on one another. The proposed absorber described more than 95 % absorption from 3.0 to 10 THz, 98.5 % maximum absorption at 7.1 THz and 97.6 % average absorption for 7.0 THz bandwidth. The structure has a decent bearing angle in a wide range of 0°–70° and has angle insensitive s- and p-polarization. Additionally, by modifying the layers and geometrical parameters, the absorption properties can be refined. This suggested absorber can be used in optoelectronic devices, photodetectors, and photosensors based on aforementioned findings. © 2025 Elsevier B.V.

关键词： Photodetectors

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：