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Exploring Nanoscale Perovskite Materials for Next‑Generation Photodetectors:A Comprehensive Review and Future Directions

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Nano-Micro Letters 2025年第2期17卷 46-108页

作者： Xin Li Sikandar Aftab Maria Mukhtar Fahmid Kabir Muhammad Farooq Khan Hosameldin Helmy Hegazy Erdi Akman State Key laboratory of Pulsed Power laser technology National University of Defense TechnologyHefei 230037AnhuiPeople’s Republic of China anhui laboratory of advanced laser technology Hefei 230037AnhuiPeople’s Republic of China Nanhu laser laboratory Changsha 410015HunanPeople’s Republic of China Department of Semiconductor Systems Engineering and Clean Energy Sejong UniversitySeoul 05006Republic of Korea Department of Artificial Intelligence and Robotics Sejong UniversitySeoul 05006Republic of Korea School of Engineering Science Simon Fraser UniversityBurnabyBC V5A 1S6Canada Department of Electrical Engineering Sejong UniversitySeoul 05006South Korea Department of Physics Faculty of ScienceKing Khalid UniversityP.O.Box 9004AbhaSaudi Arabia Central Labs King Khalid UniversityAlQura’aP.O.Box 96061413 AbhaSaudi Arabia Scientific and Technological Research and Application Center Karamanoglu Mehmetbey University70100 KaramanTurkey

The rapid advancement of nanotechnology has sparked much interest in applying nanoscale perovskite materials for photodetection *** materials are promising candidates for next-generation photodetectors(PDs)due to their unique optoelectronic properties and flexible synthesis *** review explores the approaches used in the development and use of optoelectronic devices made of different nanoscale perovskite architectures,including quantum dots,nanosheets,nanorods,nanowires,and *** a thorough analysis of recent literature,the review also addresses common issues like the mechanisms underlying the degradation of perovskite PDs and offers perspectives on potential solutions to improve stability and scalability that impede widespread *** addition,it highlights that photodetection encompasses the detection of light fields in dimensions other than light intensity and suggests potential avenues for future research to overcome these obstacles and fully realize the potential of nanoscale perovskite materials in state-of-the-art photodetection *** review provides a comprehensive overview of nanoscale perovskite PDs and guides future research efforts towards improved performance and wider applicability,making it a valuable resource for researchers.

关键词： Nanoscale perovskites Photodetectors Nanosheets Nanorods Nanowires Quantum dots Nanocrystals

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An Innovative Electro-Optic Q-Switch technology in 1064 nm and 1319 nm Dual-Wavelength Operation of a Nd:YAG laser

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Chinese Physics Letters 2013年第3期30卷 88-91页

作者： JIN Guang-Yong WU Chun-Ting CHEN Xin-Yu YU Yong-Ji WANG Chao Jilin Key laboratory of Solid laser technology and Apply School of ScienceChangchun University of Science and TechnologyChangchun 130022

An innovative electro-optic(EO)Q-switch technology in 1064 nm and 1319 nm dual-wavelength operation of a Nd:YAG laser is *** energy of 4.6 mJ and pulse width of 400 ns for 1064 nm and output energy of 8.7 mJ and pulse width of 80 ns for 1319 nm are achieved simultaneously at the repetition rate of 1 Hz and pumping voltage of 750 V by using this bias voltage electro-optic Q-switched-technology when the voltage on LiNbO_(3) crystal is 2254 *** strong line of 1064 nm in Q-switched operation is inhibited efficiently.

关键词： Nd:YAG switched pumping

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Efficient single-pixel imaging encrypted transmission based on 3D Arnold transformation

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Chinese Physics B 2024年第3期33卷 378-386页

作者：梁振宇王朝瑾王阳阳高皓琪朱东涛许颢砾杨星 State Key laboratory of Pulsed Power laser technology National University of Defense TechnologyHefei 230001China advanced laser technology laboratory of anhui Province Hefei 230001China

Single-pixel imaging(SPI)can transform 2D or 3D image data into 1D light signals,which offers promising prospects for image compression and ***,during data communication these light signals in public channels will easily draw the attention of ***,we introduce an efficient encryption method for SPI data transmission that uses the 3D Arnold transformation to directly disrupt 1D single-pixel light signals and utilizes the elliptic curve encryption algorithm for key *** encryption scheme immediately employs Hadamard patterns to illuminate the scene and then utilizes the 3D Arnold transformation to permutate the 1D light signal of single-pixel *** the transformation parameters serve as the secret key,while the security of key exchange is guaranteed by an elliptic curve-based key exchange *** with existing encryption schemes,both computer simulations and optical experiments have been conducted to demonstrate that the proposed technique not only enhances the security of encryption but also eliminates the need for complicated pattern scrambling ***,this approach solves the problem of secure key transmission,thus ensuring the security of information and the quality of the decrypted images.

关键词： single-pixel imaging 3D Arnold transformation elliptic curve encryption image encryption

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High power doubly resonant all-intracavity deep blue laser at 447 nm based on sum-frequency-mixing technology

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Chinese Optics Letters 2009年第11期7卷 1024-1027页

作者：于永吉金光勇王超陈薪羽郭家喜王奕博 Institute of laser technology School of ScienceChangchun University of Science and Technology

A high power continuous-wave deep blue laser at 447 nm is obtained by using a doubly cavity and a type H critical phase matching KTP crystal for intracavity sum-frequency-mixing. With the incident pump power of 240 W for the Nd：YAP crystal and 120 W for the other Nd：YAP crystal, the deep blue laser output of 5.7 W at 447 nm with near fundamental mode is obtained, and the beam quality M^2 value equals 2.53 in both horizontal and vertical directions at the maximum output power. The power stability is better than 2% at the maximum output power during half an hour. The experimental results show that the intracavity sum-frequency mixing by doubly resonant is an effective method for high power blue laser.

关键词： Neodymium Supercomputers

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Fabrication of four-channel DFB laser array using nanoimprint technology for 1.3μm CWDM systems

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Journal of Semiconductors 2014年第11期35卷 74-80页

作者：赵建宜陈鑫周宁黄晓东刘文 Wuhan National laboratory for Optoelectronics Huazhong University of Science and TechnologySchool of Optical and Electronic Information Accelink Technologies Company Ltd University of Science and technology of China Institute of Advanced Technology

Four-channel monolithically integrated index-coupled distributed-feedback laser array has been fabricated using nanoimprint technology for 1.3μm CWDM system. Selective lasing wavelength with 20 nm wavelength space is obtained. The present results show that the nanoimprint technology is mature and reliable in the fabrication of DFB laser array.

关键词： semiconductor laser nanoimprint distributed feedback

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Upconversion luminescence and temperature sensing performance of Er^(3+) ions doped self-activated KYb(MoO_(4))_(2) phosphors

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Journal of Rare Earths 2024年第8期42卷 1507-1513,I0004页

作者： Ye Tong Wenpeng Liu Shoujun Ding School of Microelectronics and Data Science Anhui University of TechnologyMaanshan243002China advanced laser technology laboratory of anhui Province Hefei230037China anhui Institute of Optics and Fine Mechanics Chinese Academy of SciencesHefei230031China

In this work,a series of self-activated KYb(MoO_(4))_(2) phosphors with various x at% Er^(3+) doping concentrations(x=0.5,1,3,5,8,10,15) was synthesized by the solid-state reaction *** phase structure of the as-prepared samples was analyzed by X-ray diffraction(XRD),XRD Rietveld refinement and Fourier transform infrared(FT-IR) *** as-prepared samples retain the orthorhombic structure with space group of Pbcn even Er^(3+) doping concentration up to 15 at%.High-purity upconversion(UC) green emission with green to red intensity ratio of 55 is observed from the as-prepared samples upon the excitation of 980 nm semiconductor laser and the optimum doping concentration of Er^(3+) ions in the self-activated KYb(MoO_(4))_(2) host is revealed as 3 at%.The strong green UC emission is confirmed as a two-photon process based on the power-dependent UC *** addition,the fluorescence intensity ratios(FIRs) of the two thermally-coupled energy levels,namely ^(2)H_(11/2) and ^(4)S_(3/2).of Er^(3+) ions were investigated in the temperature region 300-570 K to evaluate the optical temperature sensor behavior of the *** maximum relative sensitivity(S_(R)) is determined to be 0.0069 K^(-1) at300 K and the absolute sensitivity(S_(A)) is determined to be 0.0126 K^(-1) at 300 *** S_(A) of self-activated KYb(MoO_(4))2:Er^(3+)is almost twice that of traditional KY(MoO_(4))2:Er^(3+)/Yb^(3+)codoping *** results demonstrate that Er^(3+) ions doped self-activated KYb(MoO_(4))2 phosphor has promising application in visible display,trademark security and optical temperature sensors.

关键词： Er^(3+)ions doped KYb(MoO_(4))_(2) Self-activated phosphors Upconversion luminescence Solid-state reaction method Optical temperature sensors Rare earths

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laser Direct Metal Deposition technology and Microstructure and Composition Segregation of Inconel 718 Superalloy

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Journal of Iron and Steel Research International 2011年第4期18卷 73-78页

作者： ZHANG Qun-li YAO Jian-hua Jyoti Mazurnder Key laboratory of E and M of Ministry of Education and Zhejiang Province Hangzhou 310014 Zhejiang China Research Center of laser Processing technology and Engineering Zhejiang University of Technology Hangzhou 310014 Zhejiang China Center for laser Aided Intelligent Manufacturing University of Michigan Ann Arbor 48109 Michigan USA

Multilayer of laser direct metal deposition（DMD）was prepared by depositing a gas atomized pre-alloyed powder with a composition close to Inconel 718 alloy on Inconel 718 high temperature alloy *** effects of the DMD parameters on the build-up rate and the structure of the deposited layer were *** laser DMD sample was further processed by a solution *** microstructure and property of the laser DMD zone before and after heat treatment were investigated as *** results show that the laser parameters of actual laser power of 650 W,scanning speed of 5.8 mm/s,beam diameter of 1 mm,powder feed rate of 6.45 g/min,with a corresponding specific energy of 90-130 J/mm2,can be recommended as optimum parameters for high build-up rate of Inconel 718 *** the condition of optimized parameters,a directional solidification microstructure was obtained and the average distance between the columnar crystals was 5-10 μ*** microcomposition segregation was found between the columnar crystal trunk and columnar *** elements of Nb,Mo,Ti concentrated in the columnar crystal *** the heat treatment,the segregation was greatly minimized,and the segregation ratios were close to *** hardness of the laser deposited layer did not show obvious difference along the height of the layer either for the as-deposited layer or for the heat treated ***,the microhardness of the laser DMD zone after heat treatment was obviously higher than that after the as-deposited *** the heat treatment process,some Nb-and Mo-rich phases precipitated and strengthened DMD layer.

关键词： laser DMD Inconel 718 alloy composition segregation microstructure hardness

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One-dimensional photonic crystal enhancing spin-to-orbital angular momentum conversion for single-particle tracking

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Light(Science & Applications) 2024年第11期13卷 2767-2780页

作者： Mingchuan Huang Qiankun Chen Yang Liu Chi Zhang Rongjin Zhang Junhua Yuan Douguo Zhang advanced laser technology laboratory of anhui Province Department of Optics and Optical EngineeringUniversity of Science and Technology of ChinaHefeiAnhuiChina Department of Physics University of Science and Technology of ChinaHefeiAnhuiChina Hefei National Research Center for Physical Sciences at the Microscale University of Science and Technology of ChinaHefeiAnhuiChina Hefei National laboratory University of Science and Technology of ChinaHefeiChina

Single-particle tracking(SPT)is an immensely valuable technique for studying a variety of processes in the life sciences and *** can help researchers better understand the positions,paths,and interactions of single objects in systems that are highly dynamic or require imaging over an extended ***,we propose an all-dielectric onedimensional photonic crystal(1D PC)that enhances spin-to-orbital angular momentum conversion for threedimensional(3D)*** well-designed 1D PC can work as a substrate for optical *** introduce this effect into the interferometric scattering(iSCAT)technique,resulting in a double-helix point spread function(DH-PSF).DH-PSF provides more uniform Fisher information for 3D position estimation than the PSFs of conventional microscopy,such as encoding the axial position of a single particle in the angular orientation of DH-PSF lobes,thus providing a means for 3D *** approach can address the challenge of iSCAT in 3D SPT because DH-PSF iSCAT will not experience multiple contrast inversions when a single particle travels along the axial ***-PSF iSCAT microscopy was used to record the 3D trajectory of a single microbead attached to the flagellum,facilitating precise analysis of fluctuations in motor *** ability to track single nanoparticles,such as 3D diffusion trajectories of 20 nm gold nanoparticles in glycerol solution,was also *** DH-PSF iSCAT technique enabled by a 1D PC holds potential promise for future applications in physical,biological,and chemical science.

关键词： angular particle momentum

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Investigation into wideband electromagnetic stealth device based on plasma array and radar-absorbing materials

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Plasma Science and technology 2022年第11期24卷 54-62页

作者： Xuesong DENG Chenglong DING Yahui WANG Zhigang LI Li CHENG Zongsheng CHEN Xiangyin LV Jiaming SHI State Key laboratory of Pulsed Power laser technology National University of Defense TechnologyHefei 230037People’s Republic of China anhui Provincial laboratory of advanced laser technology National University of Defense TechnologyHefei 230037People’s Republic of China Key laboratory of Infrared and Low Temperature Plasma of anhui Province National University of Defense TechnologyHefei 230037People’s Republic of China

Manipulation of electromagnetic waves is essential to various microwave applications,and absorbing devices composed of low-pressure gas discharge tubes and radar-absorbing materials(RAM)can bring new solutions to broadband electromagnetic *** microwave transmission method is used to measure the physical parameters of the plasma *** designed structure exhibits superior absorption performance and radar cross-section(RCS)reduction capability in the 2–18 GHz band,with unique absorption advantage in the S and C frequency *** is found that the combination of the plasma and the RAM can significantly broaden the absorption frequency band and improve the absorption performance with excellent synergistic stealth *** and simulation results present that broadband,wide-angle,tunable electromagnetic wave absorption and RCS reduction can be achieved by adjusting the spatial layout of the combined plasma layer and the type of RAMs,which creates opportunities for microwave transmission and selective stealth of ***,the wave manipulation by combined plasma array and RAM provides a valuable reference for developing numerous applications,including radar antenna stealth,spatial filter,and high power microwave shielding.

关键词： radar stealth plasma stealth radar cross-section absorber

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Potassium tantalate niobate crystals:Efficient quadratic electro-optic materials and their laser modulation technology

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Journal of Materiomics 2023年第5期9卷 838-854页

作者： Xuping Wang Xinguo Mao Pan Chen Qian Du Yuguo Yang Panyu Qiao Shaodong Zhang Zhijian Li Rui Zhang Bing Liu Jiyang Wang advanced Materials Institute Qilu University of Technology(Shandong Academy of Sciences)Jinan250014China Qilu University of technology(Shandong Academy of Sciences) Advanced Materials InstituteKey Laboratory of Light Conversion Materials and Technology of Shandong Academy of SciencesJinan250014China State Key laboratory of Crystal Materials Institute of Crystal MaterialsShandong UniversityJinan250100China

Electro-optic(EO)crystals are important material for all-solid-state laser technology,which can be used to fabricate various laser modulators,such as EO switches,laser deflectors,and optical *** improvements in new high-efficiency EO crystal materials have held great significance to the development of laser *** tantalate niobate(KTN)is a popular multifunctional crystal because of its remarkable and excellent quadratic EO *** EO modulation technology offers numerous advantages,such as high efficiency,good stability,a quick response time,and inertia-free *** this paper,we summarize the research progress of KTN series crystals systemically,including the theoretical exploration on quadratic EO effect,solid-melt crystal growth technique,comprehensive physical characterization,new physical effect and mechanisms exploration,new EO devices development and *** EO modulation technique based on the Kerr effect of KTN series crystal offers obvious advantages in reducing the drive voltage and device size,which could better meet the developmental needs of future lasers with a wide wavelength,miniaturization,and *** may provide theoretical guidance and an experimental basis for the design and development of new EO crystal devices and promote the development of laser technology.

关键词： Electro-optic effect Kerr effect Electro-optic crystal Crystal growth Potassium tantalate niobate crystal laser modulation Deflector

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