Simulation and experimental study of a novel bifacial structure of silicon heterojunction solar cell for high efficiency and low cost  被引量:4

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作  者:Haibin Huang Gangyu Tian Lang Zhou Jiren Yuan Wolfgang R.Fahrner Wenbin Zhang Xingbing Li Wenhao Chen Renzhong Liu 黄海宾;田罡煜;周浪;袁吉仁;Wolfgang R.Fahrner;张闻斌;李杏兵;陈文浩;刘仁中(Institute of Photovoltaics,Nanchang University,Nanchang 330031,China;Department of Physics,Nanchang University,Nanchang 330031,China;GCL System Integration Technology Co.Ltd.,Shanghai 201700,China;Hareon Solar Co.Ltd.,Taicang 215400,China)

机构地区:[1]Institute of Photovoltaics,Nanchang University,Nanchang 330031,China [2]Department of Physics,Nanchang University,Nanchang 330031,China [3]GCL System Integration Technology Co.Ltd.,Shanghai 201700,China [4]Hareon Solar Co.Ltd.,Taicang 215400,China

出  处:《Chinese Physics B》2018年第3期520-525,共6页中国物理B(英文版)

基  金:Project supported by the Jiangxi Provincial Key Research and Development Foundation,China(Grant No.2016BBH80043);the Open Fund of Jiangsu Key Laboratory of Materials and Technology for Energy Conversion,China(Grant No.NJ20160032);the National Natural Science Foundation of China(Grant Nos.61741404,61464007,and 51561022)

摘  要:A novel structure of Ag gridlSiN_(x)/n+-c-Si/n-c-Si/i-a-Si:H/p^(+)-a-Si:HlTCO/Ag grid was designed to increase the ef-ficiency of bifacial amorphous/crystalline silicon-based solar cells and reduce the rear material consumption and production cost.The simulation results show that the new structure obtains higher efficiency compared with the typical bifa-cial amorphous/crystalline silicon-based solar cell because of an increase in the short-circuit current(J_(sc)),while retaining the advantages of a high open-circuit voltage,low temperature coefficient,and good weak-light performance.Moreover,real cells composed of the novel structure with dimensions of 75 mm×75 mm were fabricated by a special fabrication recipe based on industrial processes.Without parameter optimization,the cell efficiency reached 21.1%with the J_(sc)of 41.7 mA/cm^(2).In addition,the novel structure attained 28.55%potential conversion efficiency under an illumination of AM 1.5 G,100 mW/cm^(2).We conclude that the configuration of the Ag grid/SiN_(x)/n^(+)-c-Si/n-c-Si/i-a-Si:H/p^(+)-a-Si:H/TCO/Ag grid is a promising structure for high efficiency and low cost.

关 键 词:silicon solar cell a-Si:H/c-Si heterojunction short-circuit current 

分 类 号:TM914.4[电气工程—电力电子与电力传动]

 

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