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4 papers · 2 filters
Topological and topological-electronic correlations in amorphous silicon
Yue Pan, Mingliang Zhang, D. A. Drabold
In this paper, we study several structural models of amorphous silicon, and discuss structural and electronic features common to all. We note spatial correlations between short bon…
Network structure and dynamics of hydrogenated amorphous silicon
D. A. Drabold, T. A. Abtew, F. Inam +1
In this paper we discuss the application of current it ab initio computer simulation techniques to hydrogenated amorphous silicon (a-Si:H). We begin by discussing thermal fluctuati…
Experimentally Constrained Molecular Relaxation: The case of hydrogenated amorphous silicon
Parthapratim Biswas, Raymond Atta-Fynn, David A. Drabold
We have extended our experimentally constrained molecular relaxation technique (P. Biswas {\it et al}, Phys. Rev. B {\bf 71} 54204 (2005)) to hydrogenated amorphous silicon: a 540-…
Ab initio estimate of temperature dependence of electrical conductivity in a model amorphous material: hydrogenated amorphous silicon
T. A. Abtew, M. Zhang, D. A. Drabold
We present an ab initio calculation of the DC conductivity of amorphous silicon and hydrogenated amorphous silicon. The Kubo-Greenwood formula is used to obtain the DC conductivity…