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首页> 外文期刊>Solar Energy >Single-junction solar cells based on p-i-n GaAsSbN heterostructures grown by liquid phase epitaxy
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Single-junction solar cells based on p-i-n GaAsSbN heterostructures grown by liquid phase epitaxy

机译：基于液相外延生长的P-I-N Gaassbn异质结构的单结太阳能电池

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摘要

In this paper, we present single heterojunction p-i-n GaAsSbN/GaAs solar cells grown by low-temperature liquidphase epitaxy (LPE) - this is of interest as a component of multi-junction solar cell devices. The quaternary absorber layer was characterized by low excitation power photoluminescence to give the temperature dependence of the bandgap. This conformed to the Varshni function at low temperatures to within 10 meV, indicating relatively small alloy potential fluctuations. The absorption properties and the transport of the photogenerated carriers in the heterostructures were investigated using surface photovoltage method. A power conversion efficiency of 4.15% (AM1.5, 1000 W.m(-2)) was measured for p-i-n GaAsSbN/GaAs solar cells, which is comparable to the efficiency of MOCVD grown devices of this type. This is promising for the first report of LPE grown GaAsSbN/GaAs solar cells since the current record efficiency for the cells based on these compounds grown by MBE stands just at 6%. The long-wavelength photosensitivity of the cells determined from external quantum efficiency and surface photovoltage measurements was shown to be extended to 1040 nm.
机译：在本文中，我们呈现由低温液相外延（LPE）生长的单个异质结P-I-N Gaassbn / GaAs太阳能电池 - 这是多结太阳能电池装置的一个组件的感兴趣。通过低激发功率光致发光来表征四季度吸收层，以提供带隙的温度依赖性。这符合在低温下的varshni函数到10 mev，表示相对小的合金潜在波动。使用表面光伏方法研究了异质结构中光生载体的吸收性能和传输。对P-I-N Gaassbn / GaAs太阳能电池测量4.15％（AM1.5,000W.m（-2））的功率转换效率，其与这种类型的MOCVD生长装置的效率相当。这是对LPE生长的Gaassbn / GaAs太阳能电池的第一个报告，因为基于MBE生长的细胞的当前记录效率仅为6％。从外部量子效率和表面光伏测量确定的细胞的长波长光敏性被显示为1040nm。

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  • 来源
    《Solar Energy》 |2020年第9期|659-664|共6页
  • 作者

    Milanova Malina; Donchev Vesselin; Cheetham Kieran J.; Cao Zhongming; Sandall Ian; Piana Giacomo M.; Hutter Oliver S.; Durose Ken; Mumtaz Asim;

  • 作者单位

    Bulgarian Acad Sci Cent Lab Appl Phys 61 St Petersburg Blvd Plovdiv 4000 Bulgaria;

    Sofia Univ Fac Phys Blvd James Bourchier 5 Sofia 1164 Bulgaria;

    Univ Liverpool Stephenson Inst Renewable Energy Dept Phys Liverpool L69 7ZF Merseyside England;

    Univ Liverpool Dept Elect Engn & Elect Liverpool L69 3GJ Merseyside England;

    Univ Liverpool Dept Elect Engn & Elect Liverpool L69 3GJ Merseyside England;

    Univ Southampton Dept Phys & Astron Univ Rd Southampton SO17 1BJ Hants England;

    Northumbria Univ Dept Math Phys & Elect Engn Newcastle Upon Tyne NE1 8ST Tyne & Wear England;

    Univ Liverpool Stephenson Inst Renewable Energy Dept Phys Liverpool L69 7ZF Merseyside England;

    Univ Liverpool Stephenson Inst Renewable Energy Dept Phys Liverpool L69 7ZF Merseyside England;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    GaAsSbN; Liquid phase epitaxy; P-i-n heterostructures; Solar cells; Photovoltaic;

    机译：Gaassbn;液相外延;P-I-N异质结构;太阳能电池;光伏;

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