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Frontiers of materials Science 2015年第4期9卷 366-372页

作者： Yu XIA Liang ma Hui LU Xian-Ping WANG Yun-Xia GAO Wang LIU Zong ZHUANG Li-jun GUO Qian-Feng FANG key laboratory of {2.terials Physics Institute of Solid State Physics Chinese Academy of Sciences Hefei 230031 China

Garnet-like Li6.8La3Zr1.8Bi0.2.12.（LLZBO）＋ x mol.% Al2.3 （x = 0, 1.2., 2.50） lithium ionic electrolytes were prepared by conventional solid state reaction method under two different sintering temperatures of 1000℃ and 1100℃. XPS, induced coupled plasma optical emission spectrometer （ICP-OES）, XRD and AC impedance spectroscopy were applied to investigate the bismuth valance, lithium concentration, phase structure and lithium ionic conductivity, respectively. Electrical measurement demonstrated that ionic conductivity of AI-added LLZBO compounds could be obviously improved when the sample sintering temperature increased from 1000℃ to 1100℃. The highest ionic conductivity 6.3×10-S/cm was obtained in the LLZBO-1.2.%AI sample sintered at 1100℃, in consistent with the lowest activation energy 0.45eV for the lithium ion migration. The mechanism related with good ionic conductivity in the AI-added LLZBO sample was attributed to the lattice distortion induced by the partial AI substitution at Zr sites, which is helpful to improve the migration ability of Li ions in lattice.

关键词： garnet lithium electrolyte cubic Li7La3Zr2.12 AC impedance ionicconductivity activation energy

optical characterization of defects in narrow-gap HgCdTe for infrared detector applications

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chinese Physics B 2019年第1期28卷 52-64页

作者： Fang-Yu Yue Su-Yu ma Jin Hong Ping-Xiong Yang Cheng-Bin Jing Ye Chen jun-Hao Chu key laboratory of Polar {2.terials and Devices(MOE) Department of OptoelectronicsSchool of Information Science TechnologyEast China Normal UniversityShanghai 200241China national laboratory for Infrared Physics Shanghai Institute of Technical PhysicsChinese Academy of SciencesShanghai 200083China

Narrow-gap Hg_(1-x)Cd_x Te material with a composition x of about 0.3 plays an extremely important role in mid-infrared detection applications. In this work, the optical properties of doped HgCdTe with x ≈ 0.3 are reviewed, including the defects and defect levels of intrinsic V_(Hg) and the extrinsic amphoteric arsenic(As) dopants, which can act as shallow/deep donors and acceptors. The influence of the defects on the determination of band-edge electronic structure is discussed when absorption or photoluminescence spectra are considered. The inconsistency between these two optical techniques is demonstrated and analyzed by taking into account the Fermi level position as a function of composition, doping level,conductivity type, and temperature. The defect level and its evolution, especially in As-doped HgCdTe, are presented. Our results provide a systematic understanding of the mechanisms and help for optimizing annealing conditions towards p-type As-activation, and eventually for fabricating high performance mid-infrared detectors.

关键词： HgCdTe defects annealing procedures optical characterization

Experimental investigation of vector static magnetic field detection using an NV center with a single first-shell ^(13)C nuclear spin in diamond

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chinese Physics B 2018年第5期27卷 481-486页

作者： Feng-Jian Jiang Jian-Feng Ye Zheng Jiao jun Jiang Kun ma Xin-Hu Yan Hai-Jiang Lv School of Information Engineering Huangshan University Huangshan 245041 China

We perform a proof-of-principle experiment that uses a single negatively charged nitrogen–vacancy（NV） color center with a nearest neighbor ^13C nuclear spin in diamond to detect the strength and direction（including both polar and azimuth angles） of a static vector magnetic field by optical detection magnetic resonance（ODMR） technique. With the known hyperfine coupling tensor between an NV center and a nearest neighbor ^13C nuclear spin, we show that the information of static vector magnetic field could be extracted by observing the pulsed continuous wave（CW） spectrum.

关键词： color centers optical detection magnetic resonance (ODMR) magnetometer

Luminous composite ultrathin films of CdTe quantum dots/silk fibroin co-assembled with layered doubled hydroxide:Enhanced photoluminescence and biosensor application

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Journal of materiomics 2018年第2期4卷 165-171页

作者： Muhammad Sohail Haroone Ling Li Aftab Ahmad Yaping Huang Ruili ma Ping Zhang Yuehua Hu Qari Muhammad Kaleem jun Lu State key laboratory of Chemical Resource Engineering Beijing University of Chemical TechnologyBeijing100029China CAS key laboratory of Pathogenic Microbiology and Immunology Institute of MicrobiologyChinese Academy of SciencesBeijing100101China Beijing Advanced Innovation Center for Soft matter Science and Engineering Beijing University of Chemical TechnologyP.Box 98Beisanhuan East Road 15Beijing100029China

Quantum dots(QDs)luminescent films are extensively applied to optoelectronics and optical ***,QDs aggregation results in the quenching of their fluorescence property which limits their practical applications to a greater *** order to resolve this issue,3-mercaptopropionic acid(3-MPA)functionalized Cadmium Tellurium(CdTe)QDs were stabilized by silk fibroin(SB)and coassembled with layered doubled hydroxide(LDH)to form(QDs@SF/LDH)_(n)ultrathin films(UTFs)via the layer-by-layer(LBL)***-Vis absorption and fluorescence spectroscopy showed a stepwise and normal growth of the films upon increasing the number of deposition *** and AFM studies confirmed the formation of a periodic layered structure and regular surface morphology of the thin *** compared to(CdTe QDs/LDH)_(n)UTFs,the(CdTe QDs@SF/LDH)_(n)UTFs displayed fluorescence enhancement and longer fluorescent lifetime,both in solid states and aqueous *** compared with the solution state,the fluorescence enhancement of SF-RC and SF-β are,respectively,7 times and 17 times in the(CdTe QDs@SF/LDH)_(n)UTFs,indicating that the LDH nanosheets favor the fluorescence enhancement effect on the CdTe QDs@*** fabricated materials displayed fluorescence response to a biological molecule such as immune globulin,***,the(CdTe QDs@SF/LDH)_(n)UTFs has a potential to be used as biosensor.

关键词： CdTe quantum dots Silk fibroin Layered doubled hydroxide Co-assembly Fluorescence enhancement

Novel optical soliton molecules formed in a fiber laser with near-zero net cavity dispersion

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Light(Science & Applications) 2023年第2期12卷 272-283页

作者： Xiao Hu jun Guo jun Wang Jie {2. Luming Zhao Seongwoo Yoo Dingyuan Tang Julong College Shenzhen Technology University518118 ShenzhenChina School of Electrical and Electronic Engineering Nanyang Technological UniversitySingapore 639798Singapore jiangsu key laboratory of Laser {2.terials and Devices School of Physics and Electronic EngineeringJiangsu Normal UniversityXuzhouChina School of optical and Electronic Information Huazhong University of Science and Technology430074 WuhanChina

Soliton molecules(SMs)are stable bound states between *** in fiber lasers are intensively investigated and embody analogies with matter *** experimental studies on SMs formed by bright solitons,including soliton-pair,soliton-triplet or even soliton-quartet molecules,are ***,study on soliton-binding states between bright and dark solitons is *** this work,the formation of such novel SMs in a fber laser with near-zero group velocity dispersion(ZGVD)is ***,these SMs are formed because of the incoherent cross-phase modulation of light and constitute a new form of SMs that are conceptually analog to the multi-atom molecules in *** research results could assist the understanding of the dynamics of large SM *** findings may also motivate potential applications in large-capacity transmission and all-optical information storage.

关键词： fiber optical laser

Optimization of Three-Dimensional Culture Conditions of HepG2.Cells with Response Surface Methodology Based on the VitroGel System

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Biomedical and Environmental sciences 2022年第8期35卷 688-698页

作者： WANG Jing Bo QIN Wen YANG Zhuo SHEN Shi ma Yan WANG Li Yuan ZHUO Qin GONG Zhao Long HUO jun Sheng CHEN Chen national Institute for Nutrition and Health Chinese Centre for Disease Control and PreventionBeijing 100050China

Objective This study optimizes three-dimensional(3D) culture conditions of HepG2.using response surface methodology(RSM) based on the VitroGel system to facilitate the cell model in vitro for liver *** HepG2.cell was 3D cultured on the VitroGel *** viability was detected using Cell Counting Kit-8(CCK-8) assay of HepG2.lived cell *** proliferation of HepG2.cell and clustering performance was measured via fluorescence staining *** concentration in the culture medium supernatant as an index of HepG2.cell biological function was measured with ELISA *** factor tests were conducted with three key factors:inoculated cell concentration,cultured time,and dilution degree of the *** preliminary results of independent factor tests were used to determine the levels of factors for *** The selected optimal culture conditions are as follows:concentration of inoculated cells was4.44 × 10^(5)/mL,culture time was 4.86 days,and hydrogel dilution degree was 1:*** result shows that under optimal conditions,the predicted optical density(OD) value of cell viability was 3.10 and measured 2.978 with a relative error of 3.94%.Conclusion This study serves as a reference for the 3D HepG2.culture and constructs liver tissues in ***,it provides the foundation for repeated dose high-throughput toxicity studies and other scientific research work.

关键词： Response surface methodology The three-dimensional culture Hydrogel

Method for identifying effective carbonate source rocks:a case study from Middle-Upper Ordovician in Tarim Basin,china

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Petroleum Science 2020年第6期17卷 1491-1511页

作者： jun-Qing Chen Xiong-Qi Pang Song Wu Zhuo-Heng Chen Mei-Ling Hu Luo-Fu Liu Kui-You ma Bo Pang Zhi-Peng Huo State key laboratory of Petroleum Resources and Prospecting China University of PetroleumBeijing 102249China Beijing key laboratory of {2. Detection Technology for Oil and Gas China University of PetroleumBeijing 102249China College of Geoscience China University of PetroleumBeijing 102249China Geological Survey of Canada CalgaryAB T2L 2A7Canada Research Institute of Petroleum Exploration and Development PetroChina Huabei Oilfi eld CompanyRenqiu 062550HebeiChina china University of Geosciences Beijing 100083China

Hydrocarbon expulsion occurs only when pore fluid pressure due to hydrocarbon generation in source rock exceeds the force against migration in the adjacent carrier *** the Middle-Upper Ordovician carbonate source rock of Tarim Basin in china as an example,this paper proposes a method that identifies effective carbonate source rock based on the principles of mass *** from the Well YW2.indicate that the Middle Ordovician Yijianfang Formation contains effective carbonate source rocks with low present-day *** and geochemical analysis suggests that the hydrocarbons in the carbonate interval are likely self-generated and *** steranes from GC-MS analysis of oil extracts in this interval display similar features to those of the crude oil samples in Tabei area,indicating that the crude oil probably was migrated from the effective source *** applying to other wells in the basin,the identified effective carbonate source rocks and non-source rock carbonates can be effectively identified and consistent with the actual exploration results,validating the *** the contribution from the identified effective source rocks with low present-day TOC(TOC_(pd))is considered,the long-standing puzzle between the proved 3 P oil reserves and estimated resources in the basin can be reasonably explained.

关键词： Effective carbonate source rock mass balance approach Low present-day TOC Ordovician Tarim Basin

The THU-NAOC transient survey: the performance and results from the first year

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Research in astronomy and Astrophysics 2015年第2期15卷 215-224页

作者： Tian-Meng Zhang Xiao-Feng Wang jun-Cheng Chen Ju-Jia Zhang Li Zhou Wen-Xiong Li Qing Liu jun Mo Kai-Cheng Zhang Xin-Yu Yao Xu-Lin Zhao Xu Zhou jun-Dan Nie Fang Huang Zhao-Ji Jiang jun ma Ling-Zhi Wang Chao Wu Zhi-Min Zhou Hu Zou Li-Fan Wang key laboratory of {2. astronomy National Astronomical Observatories Chinese Academy of Sciences Physics Department and Tsinghua Center for Astrophysics Tsinghua University Yunnan observatories Chinese Academy of Sciences key laboratory for the Structure and Evolution of Celestial Objects Chinese Academy of Sciences University of chinese academy of sciences Purple Mountain Observatory Chinese Academy of Sciences astronomy Department Beijing Normal University national astronomical observatories Chinese Academy of Sciences

The Tsinghua University-national astronomical observatories, chinese academy of sciences （NAOC） Transient Survey is an auto{2.tic survey that conducts a syste{2.tic exploration of optical transients. This project utilizes a 60/90 cm Schmidt telescope at the Xinglong Station of NAOC. This survey repeatedly covers - 1000 square degrees of the northern sky with a cadence of 34 d. With an exposure of 60 s, the survey reaches a limiting unfiltered {2.gnitude of about 19.5 {2.g, which enables us to discover supernovae in their relatively young stages. We describe the overall perfor{2.nce of our survey during the first year and present some preliminary results.

关键词： supernovae quasars and active galactic nuclei stars

Two-dimensional materials for future information technology: status and prospects

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Science china(Information {2.) 2024年第6期67卷 1-147页

作者： Hao QIU Zhihao YU Tiange ZHAO Qi ZHANG Mingsheng XU Peifeng LI Taotao LI Wenzhong BAO Yang CHAI Shula CHEN Yiqi CHEN Hui-Ming CHENG Daoxin DAI Zengfeng DI Zhuo DONG Xidong DUAN Yuhan FENG Yu FU Jingshu GUO Pengwen GUO Yue HAO jun HE Xiao HE Jingyi HU Weida HU Zehua HU Xinyue HUANG Ziyang HUANG Ali IMRAN Ziqiang KONG Jia LI Qian LI Weisheng LI Lei LIAO Bilu LIU Can LIU Chunsen LIU Guanyu LIU Kaihui LIU Liwei LIU Sheng LIU Yuan LIU Donglin LU Likuan ma Feng MIAO Zhenhua NI Jing NING Anlian PAN Tian-Ling REN Haowen SHU Litao SUN Yue SUN Quanyang TAO Zi-Ao TIAN Dong WANG Hao WANG Haomin WANG Jialong WANG junyong WANG Wenhui WANG Xingjun WANG Yeliang WANG Yuwei WANG Zhenyu WANG Yao WE... School of Electronic Science and Engineering Nanjing University School of Integrated Circuits Interdisciplinary Research Center for Future Intelligent Chips (Chip-X)Nanjing University School of Integrated Circuit Science and Engineering Nanjing University of Posts and Telecommunications State key laboratory of Infrared Physics Shanghai Institute of Technical Physics Chinese Academy of Sciences School of Physics and key Lab of Quantum materials and Devices of the Ministry of Education School of Electronic Science & EngineeringSoutheast University College of Integrated Circuits State Key Laboratory of Silicon and Advanced Semiconductor MaterialsZhejiang University Suzhou laboratory State key laboratory of Integrated Chips and Systems School of MicroelectronicsFudan University Shaoxin laboratory Department of Applied Physics The Hong Kong Polytechnic University key laboratory for Micro-Nano Physics and Technology of Hunan Province College of Materials Science and EngineeringHunan University College of Integrated Circuits Zhejiang University Shenzhen Geim Graphene Center Shenzhen Key Laboratory of Layered Materials for Value-Added ApplicationsTsinghua-Berkeley Shenzhen Institute & Institute of Materials ResearchTsinghua Shenzhen International Graduate SchoolTsinghua University State key laboratory of Extreme Photonics and Instrumentation College of Optical Science and EngineeringInternational Research Center for Advanced PhotonicsZijingang CampusZhejiang University national key {2. of materials for Integrated Circuits Shanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences CAS key laboratory of Nanophotonic {2.terials and Devices & key laboratory of Nanodevices and Applications i-LabSuzhou Institute of Nano-Tech and Nano-Bionics (SINANO)Chinese Academy of Sciences College of Chemistry and Chemical Engineering Hunan University key laboratory of Quantum State Construction and {2.nipulation (Ministry of Education) Department of PhysicsRenmin University of China School

Over the past 70 years, the semiconductor industry has undergone transformative changes,largely driven by the miniaturization of devices and the integration of innovative structures and materials. Two-dimensional(2.) materials like transition metal dichalcogenides(TMDs) and graphene are pivotal in overcoming the limitations of silicon-based technologies, offering innovative approaches in transistor design and functionality, enabling atomic-thin channel transistors and monolithic 3D integration. We review the important progress in the application of 2. materials in future information technology, focusing in particular on microelectronics and optoelectronics. We comprehensively summarize the key advancements across material production, characterization metrology, electronic devices, optoelectronic devices, and heterogeneous integration on silicon. A strategic roadmap and key challenges for the transition of 2. materials from basic research to industrial development are outlined. To facilitate such a transition, key technologies and tools dedicated to 2. materials must be developed to meet industrial standards, and the employment of AI in material growth, characterizations, and circuit design will be essential. It is time for academia to actively engage with industry to drive the next 10 years of 2. material research.

关键词： two-dimensional (2.) materials information technology production technology standardization of characterization microelectronic devices optoelectronic devices multi-functional integration

Flexible fiber-laser ultrasound sensor for multiscale photoacoustic imaging

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Opto-Electronic Advances 2021年第8期4卷 16-29页

作者： Bai-Ou Guan Long Jin jun ma Yizhi Liang Xue Bai Guangdong Provincial key laboratory of Fiber Optic Sensing and Communications Institute of Photonics TechnologyJinan UniversityGuangzhou 511443China

Photoacoustic imag ing(PAI)is a nonin vasive biomedical imag ing tech no logy capable of multiscale imag ing of biological samples from orga ns dow n to *** PAI requires differe nt ultraso und tra nsducers that are flat or focused because the current widely-used piezoelectric transducers are rigid and lack the flexibility to tune their spatial ultrasound *** by the rapidly-developing flexible photonics,we exploited the inherent flexibility and low-loss features of optical fibers to develop a flexible fiber-laser ultrasound sensor(FUS)for multiscale *** simply bending the fiber laser from straight to curved geometry,the spatial ultraso und resp onse of the FUS can be tuned for both wide-view optical-resolution photoacoustic microscopy at optical diffraction-limited depth(~1 mm)and photoacoustic computed tomography at optical dissipation-limited depth of several centimeters.A radio-frequency demodulation was employed to get the readout of the beat frequency variation of two orthogonal polarization modes in the FUS output,which ensures low-noise and stable ultrasound *** to traditional piezoelectrical transducers with fixed ultrasound responses once manufactured,the flexible FUS provides the freedom to design multiscale PAI modalities including wearable microscope,intravascular endoscopy,and portable tomography system,which is attractive to fundamental biologic-al/medical studies and clinical applications.

关键词： flexible ultrasound transducer fiber-laser ultrasound sensor multiscale photoacoustic imaging photoacoustic microscopy photoacoustic computed tomography