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Improvement of a–Si1−xCx: H/a–Si: H p/i interface by hydrogen–plasma flushing studied by photoluminescence

Published online by Cambridge University Press:  31 January 2011

Daxing Han
Affiliation:
University of Colorado at Boulder, Boulder, Colorado 80309–0425
J.I. Pankove
Affiliation:
University of Colorado at Boulder, Boulder, Colorado 80309–0425 and Solar Energy Research Institute, Golden, Colorado 80401–3393
Y.S. Tsuo
Affiliation:
Solar Energy Research Institute, Golden, Colorado 80401–3393
C.H. Qiu
Affiliation:
University of Colorado at Boulder, Boulder, Colorado 80309–0425
Y. Xu
Affiliation:
Solar Energy Research Institute, Golden, Colorado 80401–3393
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Abstract

A hydrogen–plasma reactive flush of the glow discharge reactor after boron–doped a–Si1−xCx : H film deposition has been used to reduce boron contamination of subsequently deposited intrinsic a–Si:H. Photoluminescence studies of p/i structures in a–Si: H show that the hydrogen–plasma process increases both the luminescence efficiency and the activation energy for the competing nonradiative recombination. The process also shifts the emission peak to higher energies by 25 meV.

Type
Articles
Copyright
Copyright © Materials Research Society 1991

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