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B(Ch3)3 as P Layer Doping Gas

Published online by Cambridge University Press:  25 February 2011

D. S. Shen ,
H. Chatham  and
R. E. I. Schropp
D. S. Shen
Affiliation:
Glasstech Solar, Inc., 6800 Joyce Street, Golden, CO 80403, USA
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Abstract

The boron doped p-layer is a critical part of a-Si:H solar cells. Trimethylboron (B(CH3)3) has been suggested to be a better doping gas and has a better thermal stability than B2H6. Single junction a-Si:H solar cells and a-Si:H/a-Si:H tandem cells with the p-layers deposited using B(CH3)3 have resulted in conversion efficiencies of 11.4% and 10.4%, respectively. Using these new p+-layers, we also reached 10% efficiencies in single junction a-Si:H solar cells with the i-layer deposited at a high deposition rate of ∼ 2 nm/s from either SiH4 or Si2H6 as a source gas.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 192: Symposium O – Amorphous Silicon Technology - 1990 , 1990 , 523
Copyright
Copyright © Materials Research Society 1990

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References

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