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Facile synthesis of Cu-In-Zn-S alloy nanospheres for fast photoelectric detection across the visible spectrum

Frontiers of Materials Science 2020年第3期14卷 323-331页

作者： Yang Sheng Jie Yang Qiliang Zhu Yixin Sun Rong Zhang Xiaosheng Tang Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials School of Materials Science and EngineeringChangzhou UniversityChangzhou213164China Institute of Advanced Materials(IAM) Nanjing Tech UniversityNanjing211800China Key Laboratory of Optoelectronic Technology and Systems(Ministry of Education) College of Optoelectronic EngineeringChongqing UniversityChongqing400044China Jiangsu Chenguang Paint Co. Ltd.Changzhou213154China

Fast and broadband photoelectric detection is a key process to many photoelectronic applications,during which the semiconductor light absorber plays a critical *** this report,we prepared Cu-In-Zn-S(CIZS)nanospheres with different compositions via a facile hydrothermal *** nanospheres were^200 nm in size and comprised of many small nanocrystals.A photodetector responded to the visible spectrum was demonstrated by spraying the solution processed nanospheres onto gold interdigital *** photoelectric characterization of these devices revealed that CIZS nanospheres with low molar ratio of n(Cu)/n(In)exhibited improved photoelectric response compared to those with high n(Cu)/n(In),which was attributed to the reduced *** relatively large switching ratio(Ion/Ioff),fast response and wide spectral coverage of the CIZS-based photodetector render it a promising potential candidate for photoelectronic applications.

关键词： chalcogenides Cu-In-Zn-S nanospheres solvothermal photoelectric detection

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Design and experiment of seeding performance monitoring system for suction corn planter

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International Journal of Agricultural and Biological Engineering 2019年第4期12卷 97-103页

作者： Kun Liu Shujuan Yi College of Electrical and Information Heilongjiang Bayi Agriculture UniversityDaqing163319China College of Engineering Heilongjiang Bayi Agriculture UniversityDaqing163319China

To realize the highly precise and real-time monitoring of seeding performance in suction-type corn planter,and intelligent detection technology was *** this monitoring system,firstly,the sensor was designed based on the photoelectric ***,in order to reduce the influence of dust in the field on the photoelectric sensor,the installation position of the sensor was changed to the space under the seed plate instead of the traditional position,that is,the middle of the seed ***,the scattering angle of the highlighting light-emitting diodes was considered to calculate the spacing of transmitters to realize non-blind area *** but not least,the peak-detection algorithm was utilized to increase the detection ***,after a lot of the indoor and field experiments,the analysis shows that the detection accuracy of seeding quantity can reach 98.45%,alarm delay time under abnormal circumstances is not more than 2 ***,this system can meet the requirements of seeding completely and improve its reliability greatly.

关键词： seeding performance monitoring system peak-detection algorithm photoelectric detection

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Measurement of fibers’ valid elastic-optic constant based on optical fiber Bragg grating sensor

Measurement of fibers’ valid elastic-optic constant based o...

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20th Congress of the International Commission for Optics

作者： Bao-jin Peng *a,b Yan-biao Liao b Min Zhang b Hui Wang a Chao-fu Ying a Shu-rong Lai ba Zhejiang Normal University, Institute of Information Optics, Jinhua 321004,China b Tsinghua University, Department of Electronic Engineering, Beijing 100084,China

With the fast development of fiber technology, a lot of new type fibers come out one after another. As the fiber core materials of these new type fibers are not as the traditional pure quartz, if we w

关键词： fiber Bragg grating strain valid elastic-optic constant photoelectric detection

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TWO-DIMENSIONS POSITION ENCODED AND RECOGNITION TECHNOLOGY

TWO-DIMENSIONS POSITION ENCODED AND RECOGNITION TECHNOLOGY

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2009 2nd IEEE International Conference on Computer Science and Information Technology（ICCSIT 2009）

作者： Jun-xing zhang Li-xin shi Ji-yin zhao Dept.of Electromechanical and Information Engineering Dalian Nationalities University Dalian China

Digital levels is typical product which using image processing to compete position measurement,but the encoded in digital levels is one-dimension position encoded.A surface positioning method based on two-dimension encoded recognition is *** structure of pen-type coding image detection system is *** order to complete position encoding the non-continuous code area coding and incremental coding methods are put forward and *** this system,we get position coordinates by the process of coding *** image process steps and recognition method are *** method can be applied to the development of interactive electronic whiteboard and computer input device.

关键词： position measurement two-dimensions encode photoelectric detection encode image recognition

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DESIGN OF A DISPLACEMENT/ANGLE MEASUREMENT SYSTEM BASED ON LASER TRIANGULATION PRINCIPLE

DESIGN OF A DISPLACEMENT/ANGLE MEASUREMENT SYSTEM BASED ON L...

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2006年中国机械工程学会年会暨中国工程院机械与运载工程学部首届年会

作者： CHEN Ting, ZHANG Liqiong, ZHANG Guizhen, CHEN Benyong Nanometer Measurement Lab, Zhejiang Sci-Tech University, Hangzhou 310018, China,

A novel photoelectric measurement method for displacementand angle based on laser triangulation is proposed in thispaper. The angle that the measured object turns is obtained bygeometry transformation

关键词： Laser triangulation photoelectric detection displacement and angle.

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