The Comparative Study of Using Si and Te Doping Tunnel Junction of Vertical Hetero-structure Laser Photovoltaic Cell

Chenggang Guan, Yuzhen Deng, Xiaomei Chen
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Abstract

Heavy doping of epitaxial tunnel junction layers is of interest in vertical hetero-structure laser photovoltaic cell in recent years. In this paper, the performance characteristic of AlGaAs/GaAs tunnel junctions with silicon(Si) and tellurium (Te) doped were presented, respectively. Compared to Si doping, the tunnel junction diode doped with Te doping revealed lower tunneling resistance and better performance. A comparative study using both Si and Te doping in the AlGaAs/GaAs tunnel junction of six junctions monochromatic laser photovoltaic cells also showed a higher photoelectric efficiency for Te doping. Therefore, the tunnel junction with Te doping can be considered to improve the performance of monochromatic laser cells.
垂直异质结构激光光伏电池采用Si和Te掺杂隧道结的比较研究
外延隧道结层的大量掺杂是近年来垂直异质结构激光光伏电池研究的热点。本文介绍了分别掺杂硅(Si)和碲(Te)的AlGaAs/GaAs隧道结的性能特点。与Si掺杂相比,Te掺杂的隧道结二极管具有更低的隧道电阻和更好的性能。在六结单色激光光伏电池的AlGaAs/GaAs隧道结中掺杂Si和Te的对比研究也表明,掺杂Te的光电效率更高。因此,可以考虑在隧道结中掺杂Te来提高单色激光电池的性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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