太阳能电池光载流子辐射复合的红外特性仿真与试验
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哈尔滨工业大学 机电工程学院;中国;Center for Advanced Diffusion Wave Technologies CADIFT,Mechanical and Industrial Engineering,University of Toronto,Toronto,Ontario MS G,Canada,哈尔滨工业大学 机电工程学院,哈尔滨工业大学 机电工程学院,哈尔滨工业大学 机电工程学院,Center for Advanced Diffusion Wave Technologies CADIFT,Mechanical and Industrial Engineering,University of Toronto,Toronto,Ontario MS G,Canada

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国家自然科学基金项目(面上项目,重点项目,重大项目)


Infrared radiation induced by photocarrier recombination in solar cells
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School of Mechatronics Engineering,Harbin Institute of Technology,Harbin,;PRChina;Center for Advanced Diffusion Wave Technologies CADIFT,Mechanical and Industrial Engineering,University of Toronto,Toronto,Ontario MS G,Canada,School of Mechatronics Engineering,Harbin Institute of Technology,Harbin,School of Mechatronics Engineering,Harbin Institute of Technology,Harbin,School of Mechatronics Engineering,Harbin Institute of Technology,Harbin,Center for Advanced Diffusion Wave Technologies CADIFT,Mechanical and Industrial Engineering,University of Toronto,Toronto,Ontario MS G,Canada

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    摘要:

    激光诱发硅太阳能电池产生载流子,由于少数载流子的复合而发射红外辐射.基于一维载流子传输方程,建立了调制激光诱发PN结少数载流子密度模型,利用该模型仿真分析了载流子寿命、扩散率、表面复合率及光电压对辐射复合产生红外辐射信号的影响.利用InGaAs红外探测器(0.9~1.7μm)记录激光诱发载流子辐射复合的红外辐射信号,用数字锁相放大器提取了幅值与相位.通过频率扫描试验获得了多晶硅太阳能电池载流子传输参数.

    Abstract:

    In silicon solar cells, carriers are generated under illumination of laser, and excess minority carriers emit infrared radiation via a radiative recombination process. A model for minority carrier density in a pn junction induced by modulated laser was developed based on 1D carrier transport equation of semiconductor. The influences of carrier lifetime, diffusion coefficient, surface recombination rate, and photovoltage on radiation recombination, thus on infrared radiation were investigated. The laser-induced photocarrier radiometry signal was monitored using an InGaAs detector (0.9~1.7μm). The amplitude and phase of infrared radiation were obtained by a digital lock-in amplifier. Carrier transport parameters of m-Si solar cell were obtained by frequency-scanning experiments.

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刘俊岩,秦雷,龚金龙,王扬,安德里亚斯曼德里斯.太阳能电池光载流子辐射复合的红外特性仿真与试验[J].红外与毫米波学报,2014,33(3):248~255]. LIU Jun-Yan, QIN Lei, GONG Jin-Long, WANG Yang, Mandelis A. Infrared radiation induced by photocarrier recombination in solar cells[J]. J. Infrared Millim. Waves,2014,33(3):248~255.]

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  • 收稿日期:2013-04-18
  • 最后修改日期:2013-06-14
  • 录用日期:2013-06-17
  • 在线发布日期: 2014-07-30
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