DocumentCode
3711711
Title
Twin boundaries enhanced current transport in 14.4%-efficient CdTe solar cells by RF sputtering
Author
Hui Li;Xiangxin Liu; Zhongming Du; Biao Yang
Author_Institution
The Key Laboratory of Solar Thermal Energy and Photovoltaic System, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China
fYear
2015
fDate
6/1/2015 12:00:00 AM
Firstpage
1
Lastpage
4
Abstract
In this paper, we are reporting a radio-frequency (rf) sputtered CdTe solar cell on soda lime glass (SLG) with 14.4% efficiency. {111} Σ3 twin boundaries (TBs) are found in this solar cell and are directly found to be electrically beneficial to the device performance, as confirmed by conductive atomic force microscopy. TBs are observed to be preferred paths for carrier transport. As indicated by scanning kelvin probe microscopy, there is potential difference between grain interior and TBs.
Keywords
"II-VI semiconductor materials","Cadmium compounds","Radio frequency","Magnetic resonance imaging","Voltage measurement","Sputtering","Indexes"
Publisher
ieee
Conference_Titel
Photovoltaic Specialist Conference (PVSC), 2015 IEEE 42nd
Type
conf
DOI
10.1109/PVSC.2015.7356438
Filename
7356438
Link To Document