Efficient polycrystalline silicon solar cells with double metal oxide layers

Dalton Transactions : an International Journal of Inorganic Chemistry
Yichen XuXibin Yu

Abstract

Crystalline silicon solar cells can achieve high power conversion efficiency and can be successfully commercialized; however, the exploration of optimization strategies is still necessary. Here, we demonstrated improved performance of a polycrystalline silicon solar cell by depositing Sb2Ox/CdO double layers onto a Si wafer via a low-cost route. The metal oxide layers, forming effective heterojunctions, suppressed carrier recombination and reduced surface reflection. Additionally, the heterojunctions of Sb2Ox/CdO/Si enhanced the transmission of electrons and holes and simultaneously, a wider response range in the solar spectrum was realized. The power conversion efficiency improved from 12.6 to 16.7% in a polycrystalline silicon solar cell, with relative increase of 33%. It is expected that the metal oxide-enhanced devices will have tremendous potential in commercial applications.

References

Jul 21, 2006·The Journal of Physical Chemistry. B·Yan Huang, Patricio Ruiz
Apr 30, 2007·Talanta·R B WaghuladeRenu Pasricha
Apr 22, 2011·Advanced Materials·Jonas WeickertLukas Schmidt-Mende
Mar 22, 2012·Nano Letters·Mohammad M A HakimPeter Ashburn
Oct 10, 2013·Advanced Materials·Letian DouYang Yang
Oct 1, 2015·Physical Chemistry Chemical Physics : PCCP·Zhimin LiangWeiguang Xie
Jan 18, 2017·ACS Applied Materials & Interfaces·Wenxiang PengXinhua Zhong
May 18, 2017·Journal of the American Chemical Society·Wenchao ZhaoJianhui Hou

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