Optical parameters of hydrogenated A-silicon and alloys near the gap

S. Beretta; A. Frova; A. Selloni

doi:10.1016/0022-3093(85)90717-3

Optical parameters of hydrogenated A-silicon and alloys near the gap

S. Beretta, A. Frova, A. Selloni

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2 Scopus citations

Abstract

The increase in Urbach energy E_o for decreasing x in a-Si_xC_1-x:H is accounted for in terms of potential fluctuations in an alloy without site correlations. The influence of disorder on the optical gap E_g is determined by a convolutional procedure which extends a recent theory of DOS tails. We find E_g ≅ E_x - 1.3 E_o.

Original language	English (US)
Pages (from-to)	539-542
Number of pages	4
Journal	Journal of Non-Crystalline Solids
Volume	77-78
Issue number	PART 1
DOIs	https://doi.org/10.1016/0022-3093(85)90717-3
State	Published - Dec 2 1985
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Materials Chemistry

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10.1016/0022-3093(85)90717-3

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title = "Optical parameters of hydrogenated A-silicon and alloys near the gap",

abstract = "The increase in Urbach energy Eo for decreasing x in a-SixC1-x:H is accounted for in terms of potential fluctuations in an alloy without site correlations. The influence of disorder on the optical gap Eg is determined by a convolutional procedure which extends a recent theory of DOS tails. We find Eg ≅ Ex - 1.3 Eo.",

author = "S. Beretta and A. Frova and A. Selloni",

note = "Funding Information: supported by CNR (PFE II)-ENEA.",

year = "1985",

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doi = "10.1016/0022-3093(85)90717-3",

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T1 - Optical parameters of hydrogenated A-silicon and alloys near the gap

AU - Beretta, S.

AU - Frova, A.

AU - Selloni, A.

N1 - Funding Information: supported by CNR (PFE II)-ENEA.

PY - 1985/12/2

Y1 - 1985/12/2

N2 - The increase in Urbach energy Eo for decreasing x in a-SixC1-x:H is accounted for in terms of potential fluctuations in an alloy without site correlations. The influence of disorder on the optical gap Eg is determined by a convolutional procedure which extends a recent theory of DOS tails. We find Eg ≅ Ex - 1.3 Eo.

AB - The increase in Urbach energy Eo for decreasing x in a-SixC1-x:H is accounted for in terms of potential fluctuations in an alloy without site correlations. The influence of disorder on the optical gap Eg is determined by a convolutional procedure which extends a recent theory of DOS tails. We find Eg ≅ Ex - 1.3 Eo.

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JF - Journal of Non-Crystalline Solids

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ER -

Optical parameters of hydrogenated A-silicon and alloys near the gap

Abstract

All Science Journal Classification (ASJC) codes

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