期刊
EPJ PHOTOVOLTAICS
卷 9, 期 -, 页码 -出版社
EDP SCIENCES S A
DOI: 10.1051/epjpv/2018001
关键词
textured surface silicon; ECV profiling; SIMS; PV emitter profiling
资金
- CIR contract
In crystalline silicon solar cells, the front surface is textured in order to lower the reflection of the incident light and increase the efficiency of the cell. This texturing whose dimensions are a few micrometers wide and high, often makes it difficult to determine the doping profile measurement. We have measured by secondary ion mass spectrometry (SIMS) and electrochemical capacitance voltage profiling the doping profile of implanted phosphorus in alkaline textured and in polished monocrystalline silicon wafers. The paper shows that SIMS gives accurate results provided the primary ion impact angle is small enough. Moreover, the comparison between these two techniques gives an estimation of the concentration of electrically inactive phosphorus atoms.
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