Bifacial CdS/CdTe Solar Cell using Transparent Barium Copper Sulfide as a Hole Transport Layer

被引：0
|
作者：
Subedi, Kamala Khanal [1 ]
Bastola, Ebin [1 ]
Subedi, Indra [1 ]
Phillips, Adam B. [1 ]
Heben, Michael J. [1 ]
Podraza, Nikolas J. [1 ]
Ellingson, Randy J. [1 ]
机构：
[1] Univ Toledo, Wright Ctr Photovolta Innovat & Commercializat, Dept Phys & Astron, 2801 Bancroft St, Toledo, OH 43606 USA
来源：
2019 IEEE 46TH PHOTOVOLTAIC SPECIALISTS CONFERENCE (PVSC) | 2019年
关键词：
bifacial; hole transport layer; CdTe; spin coating;
D O I：
10.1109/pvsc40753.2019.8980936
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
We report the properties of earth-abundant p-type transparent BaCu4S3 (BCS) thin films deposited by solution-based method. Our films of 100 nm thickness show transparency > 70% over the visible and near-infrared regions. We study the bifacial photovoltaic performance of CdTe solar cells using BCS as a hole transport layer. The BCS deposition etches the CdTe to leave a Te rich surface which can help to reduce the barrier height. Our best device, completed with ITO on the BCS, when illuminated from the glass side illumination (eta = 12.3 %) shows improved performance relative to our standard Cu/Au back contact, with increased V-oc and FF. For film side illumination, J(sc) is low and (eta reaches just 1%). Once optimized, this earth-abundant transparent BCS could serve as an effective, inexpensive, low-toxicity back contact layer for bifacial CdTe solar cell.
引用
收藏
页码：185 / 188
页数：4
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