检索结果-南通市图书馆

An Enhanced Photoelectric Conversion Efficiency of n-Type Crystalline Silicon p-n Junctions Using a Ferroelectric Passivation Layer

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics Letters 2014年第4期31卷 163-166页

作者： LI Zi-Zhen TANG Rong-Sheng WANG Xiao-Feng ZHENG Fen-Gang Department of Physics and Jiangsu Key Laboratory of Thin Films Soochow University Suzhou 215006 Department of Electronic and Information Engineering Taizhou Polytechnic College Taizhou 225300

A multilayered structure consisting of ferroelectric Pb（Zr, Ti）Oa （PZT） film is deposited by sputtering on the crystalline silicon p-n junction without any buffer layer. The photovoltaic output of the p-n junction is greatly enhanced due to the usage of In2Oa：Sn（ITO）/PZT as top surface passivation layers. The short circuit current and photoelectric conversion emciency of the p-n junction with ITO/PZT ferroelectric films increase about four and six times, respectively, compared with those without any passivation layers. Improvement in the passivated device is mainly attributed to the builtqn feld at the ITO/PZT interface.

关键词： photoelectricity ENERGY conversion N-type semiconductors PASSIVATION SPUTTERING (Physics) BUFFER layers

A Special Issue on Semiconductor Optoelectronics Dedicated to Prof. Dexiu Huang＇s 80^th Birthday

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Optoelectronics 2016年第3期9卷 339-340页

作者： Xinliang ZHANG Jianji DONG Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information Huazhong University of Science and Technology Wuhan 430074 China

Prof. Dexiu Huang is a well-known expert in the field of semiconductor optoelectronics, especially semiconductor optical amplifier （SOA） and its applications. He is also famous for presenting the first proposal to establish high- technology zone of optoelectronic industry in Wuhan City, which is known as Wuhan Optics Valley of China. Thanks for the support from the editorial board of the Frontiers of Optoelectronics, we are honored to organize this special issue with emphasis on the current hot topics and future trends in the field of semiconductor optoelectronics to celebrate Prof. Dexiu Huang＇s 80th birthday.

关键词： Semiconductor Optical Amplifier Fields photoelectricity Semiconductor materials

A higher performance dye-sensitized solar cell based on the modified PMII/EMIMBF_4 binary room temperature ionic liquid electrolyte

在线全文

学校读者我要写书评

暂无评论

Optoelectronics Letters 2016年第4期12卷 245-248页

作者：汪午阳曹大鹏王超张祥雨密保秀高志强梁忠诚 School of Optoelectronic Engineering Nanjing University of Posts & Telecommunications Key Laboratory for Organic Electronics & Information Displays of Jiangsu Province Institute of Advanced MaterialsSchool of Material Science and EngineeringNanjing University of Posts & Telecommunications National Synergetic Innovation Center for Advanced Materials Nanjing University of Posts & Telecommunications

Additives and iodine(I_2) are used to modify the binary room temperature ionic liquid(RTIL) electrolyte to enhance the photovoltaic performance of dye-sensitized solar cells(DSSCs). The short-circuit current density(JSC) of 17.89 m A/ cm2, open circuit voltage(VOC) of 0.71 V and fill factor(FF) of 0.50 are achieved in the optimal device. An average photoelectric conversion efficiency(PCE) of 6.35% is achieved by optimization, which is over two times larger than that of the parent device before optimization(2.06%), while the maximum PCE can reach up to 6.63%.

关键词： Bins Electrolytes Ionic liquids Open circuit voltage photoelectricity Solar cells Solar power generation

Comprehensive study of efficient dye-sensitized solar cells based on the binary ionic liquid electrolyte by modifying with additives and iodine

在线全文

学校读者我要写书评

暂无评论

Optoelectronics Letters 2017年第4期13卷 263-267页

作者： MO Ao-qiang CAO Da-peng WANG Wu-yang LI Xue-yan MI Bao-xiu GAO Zhi-qiang LIANG Zhong-cheng School of Optoelectronic Engineering Nanjing University of Posts ＆ Telecommunications Nanjing 210023 China School of Material Science and Engineering Nanjing University of Posts ＆ Telecommunications Nanjing 210023 China ZTE Nanjing Branch Nanjing 210023 China National Synergetic Innovation Center for Advanced Materials Nanjing University of Posts＆Telecommunications Nanjing 210023 China

The photovoltaic performance of dye-sensitized solar cells （DSSCs） is enhanced by modifying the binary room tem- perature ionic liquid （RTIL） electrolyte with additives and iodine. The average photoelectric conversion efficiency （PCE） of 6.39% is achieved. Through electrochemical impedance spectroscopy （EIS）, cyclic voltammetry scans and incident photon-to-current conversion efficiency （1PCE） data, the working principles are analyzed. The enhancement is mainly attributed to the improvement of short circuit current which is caused by the reduction of overall internal resistance of the devices. Durability tests are measured at room temperature, and the long-term stability performance can be maintained.

关键词： Bins Conversion efficiency Cyclic voltammetry Durability Efficiency Electrochemical impedance spectroscopy Electrolytes Iodine Ionic liquids photoelectricity Solar cells Solar power generation

WHOF WUHAN OPTOELECTRONICS FORUM

在线全文

学校读者我要写书评

暂无评论

Frontiers of Optoelectronics 2015年第4期8卷 I0005-I0011页

Wuhan Optoelectronics Forum （WHOF） is a series of academic courses launched by Wuhan National Laboratory for Optoelectronics （WNLO）. By inviting outstanding scientists, experts, and entrepreneurs to give lectures in the field of optoelectronics, WHOF aims to introduce the state-of-art of progress on the frontiers of optoelectronics, discuss key scientific questions and solutions, predict development trend of disciplines and related industries, thus to provide scientific and technological support to the development of Wuhan Optics Valley of China.

关键词： disciplines photoelectricity Lectures (teaching method) Scientific personnel National Government research programmes Domestic architecture Teachers

A special issue on Optoelectronics in Energy

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Optoelectronics 2013年第4期6卷 357-358页

作者： Changqing CHEN Jun ZHOU Yanyan FANG Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan 430074 China

With the gradual reduction of fossil fuel and the growing environmental concerns over the climate change associated with the use of fossil fuel, renewable energy sources such as solar, wind, biomass, geothermal and hydroelectric are becoming increasingly important. In particular, solar power generation has emerged as the most rapidly growing renewable source. As a result, solar cells of different types have been intensively studied.

关键词： solar cells renewable energy sources photoelectricity Hydroelectric climate change Energy sources Solar power generation Fossil Fuels Renewable energy

A special issue on Biomedical Photonics

在线全文

学校读者我要写书评

暂无评论

Frontiers of Optoelectronics 2015年第2期8卷 119-121页

作者： Dan ZHU Britton Chance Center for Biomedical Photonics Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan 430074 China Ministry of Education (MoE) Key Laboratory for Biomedical Photonics Department of Biomedical Engineering Huazhong University of Science and Technology Wuhan 430074 China National Researc-h Saratov State University. Saratov 410012 Russia Institute of Precise Mechanics and Control RAS Saratov 410028 Russia Interdisciplinary Laboratory of Biophotonics National Research Tomsk State University Tomsk 634050 Russia

During the last decades, there have been significant developments in the field of biomedical photonics. We are pleased to present a special issue of Frontiers of Optoelectronics on Biomedical Photonics, which assembles one letter, three reviews, and eight original research articles. Optical coherence tomography （OCT） has the ability to image tissues in vivo. Polarization-sensitive optical coherence tomography （PSOCT） is a functional extension of OCT. By measuring the polarization state of light reflecting or scattering back from tissue, PSOCT enables depth-resolved mapping of sample polarization information, such as phase-retardation and optical axis orientation. In this issue, Zhenyang Ding et al. gave a review of technology developments and biomedical applications of PSOCT. Fourier domain optical coherence tomography （FDOCT） provides cross-sectional images of tissuematerial microstructures by spectral analysis of the low-coherence interference fringe pattern. Zhihua Ding et al. developed two novel systems with ultralong depth range. One is the orthogonal dispersive spectral domain optical coherence tomography （SDOCT）, and the other is the recirculated swept source interferometer/OCT. No compromise between depth range and depth resolution is required in both systems. With their SDOCT system, Jian Gao et al. imaged mouse model with dorsal skin window chamber, they obtained a series of real-time OCT images and reconstructed 3D images of the specific area inside the dorsal skin window chamber by Amira.

关键词： photoelectricity Skin window Three-Dimensional Images functional expansion biomedical Optic axis aluminium depth resolution Photonics optical coherence tomography

New Measurement of Swaying Quantity and Multi-barrel Parallelism for Rocket Launcher

在线全文

学校读者我要写书评

暂无评论

Semiconductor Photonics and Technology 2006年第3期12卷 184-187页

作者： ZHENG Ping-yi MA Hong XIE Lan-ying LIU Zhen-bo Fine Mechanics Lab Department of PhotoelectricityChangchun University of Science and Technology Changchun 130022 CHN

By analyzing the deficiencies of the method, a measurement system with the technologies of photoelectricity, laser and digital image processing to synthetically measure these two parameters has been developed. A traditional method to measure the swaying quantity and multi-barrel parallelism of rocket launcher is introduced. Meanwhile, the principle, executive plan and the accuracy analysis are also presented. The photoelectric measurement system has been applied in the swaying quantity and multi-barrel parallelism measurement for Φ122 mm and Φ302 mm rocket launcher. The metrical errors are both 16^th.

关键词： Swaying quantity photoelectricity Parallelism CCD camera Rocket launcher

Development and application of an online pinhole detector for cold-rolled strips

在线全文

学校读者我要写书评

暂无评论

Baosteel Technical Research 2013年第4期7卷 3-7页

作者： SHI Guifen SUN Juelu WANG Kangjian Equipment Research Department ResearchlnstituteBaoshan Iron & Steel Co.Ltd. Technology Development Department Baoshan Iron & Steel Co.Ltd. Cold Rolling Plant Baoshan Iron & Steel Co.Ltd.

An online pinhole detector based on the photoelectric inspection of cold-rolled steel strips was introduced. Pinhole detection is important to guarantee the quality of cold-rolled steel strips. The detector here was developed independently by Baosteel,and is designed based on the principle of photoelectric transfer. Typically, an inspection light source is installed above the steel strip to be inspected, and a photoelectric receiver is installed beneath the steel strip. The pinhole detector consists of a super-bright LED light source and a photoelectric receiver, which is composed primarily of photomultipliers. The super-bright LED light source illuminates the strip surface, and the light that permeates from pinholes is detected and amplified by a photoelectric receiver. The photomultiplier transforms the detected light into an electrical signal ,which is later recognized and classified by a signal-processing circuit and collected by a data-acquisition card. The detector can accurately track the strip edge and shield the strip edge from outside light. As a result,this system can detect a pinhole in the strip edge with a small blind zone on the edge. Most importantly, the detector exhibits good inspection accuracy and can accurately detect a pinhole with a diameter of 15 μm.

关键词： pinholes in steel strips inspection photoelectricity