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AlGaAs/GaAs tunnel junctions in a 4-J tandem solar cell
  • ISSN号:1674-4926
  • 期刊名称:《半导体学报:英文版》
  • 时间:0
  • 分类:TN304.23[电子电信—物理电子学] TM914.42[电气工程—电力电子与电力传动]
  • 作者机构:[1]School of Electronic and Information Engineering, Beihang University, Beijing 100191, China
  • 相关基金:Project supported by the National Natural Science Foundation of China (No. 10778723).t
中文摘要:

<正>TheⅢ-Ⅴcompound tandem solar cell is a third-generation new style solar cell with ultra-high efficiency. The energy band gaps of the sub-cells in a GaInP/GaAs/InGaAs/Ge 4-J tandem solar cell are 1.8,1.4,1.0 and 0.7 eV,respectively.In order to match the currents between sub-cells,tunnel junctions are used to connect the sub-cells.The characteristics of the tunnel junction,the material used in the tunnel junction,the compensation of the tunnel junction to the overall cell’s characteristics,the tunnel junction’s influence on the current density of sub-cells and the efficiency increase are discussed in the paper.An AlGaAs/GaAs tunnel junction is selected to simulate the cell’s overall characteristics by PC1D,current densities of 16.02,17.12,17.75 and 17.45 mA/cm2 are observed,with a Voc of 3.246 V,the energy conversion efficiency under AM0 is 33.9%.

英文摘要:

The Ⅲ-Ⅴ compound tandem solar cell is a third-generation new style solar cell with ultra-high efficiency. The energy band gaps of the sub-cells in a GaInP/GaAs/InGaAs/Ge 4-J tandem solar cell are 1.8, 1.4, 1.0 and 0.7 eV, respectively. In order to match the currents between sub-cells, tunnel junctions are used to connect the sub-cells. The characteristics of the tunnel junction, the material used in the tunnel junction, the compensation of the tunnel junction to the overall cell's characteristics, the tunnel junction's influence on the current density of sub-cells and the efficiency increase are discussed in the paper. An A1GaAs/GaAs tunnel junction is selected to simulate the cell's overall characteristics by PC 1 D, current densities of 16.02, 17.12, 17.75 and 17.45 mA/cm^2 are observed, with a Voc of 3.246 V, the energy conversion efficiency under AM0 is 33.9%.

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期刊信息
  • 《半导体学报:英文版》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国电子学会 中国科学院半导体研究所
  • 主编:李树深
  • 地址:北京912信箱
  • 邮编:100083
  • 邮箱:cjs@semi.ac.cn
  • 电话:010-82304277
  • 国际标准刊号:ISSN:1674-4926
  • 国内统一刊号:ISSN:11-5781/TN
  • 邮发代号:2-184
  • 获奖情况:
  • 90年获中科院优秀期刊二等奖,92年获国家科委、中共中央宣传部和国家新闻出版署...,97年国家科委、中共中央中宣传部和国家新出版署三等奖,中国期刊方阵“双效”期刊
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  • 俄罗斯文摘杂志,美国化学文摘(网络版),荷兰文摘与引文数据库,美国工程索引,美国剑桥科学文摘,英国科学文摘数据库,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),英国英国皇家化学学会文摘,中国北大核心期刊(2000版)
  • 被引量:7754