The influence of the distribution of potential fluctuations on the distribution of states in amorphous semiconductors

Stephen K. O'Leary; P. K. Lim

doi:10.1016/S0038-1098(96)00621-7

The influence of the distribution of potential fluctuations on the distribution of states in amorphous semiconductors

Stephen K. O'Leary^*, P. K. Lim

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › peer-review

9 Citations (Scopus)

Abstract

Using a simplified but representative model for the physical structure of an amorphous semiconductor, we examine the corresponding distribution of potential fluctuations. We demonstrate that substantial deviations from a Gaussian distribution of potential fluctuations occur for reasonable parameter selections. We then use a semiclassical approach to study how the distribution of states is shaped by this distribution of potential fluctuations. We find that while the distribution of tail states is relatively heavily influenced by the distribution of potential fluctuations, the distribution of band states is not.

Original language	English
Pages (from-to)	513-517
Number of pages	5
Journal	Solid State Communications
Volume	101
Issue number	7
DOIs	https://doi.org/10.1016/S0038-1098(96)00621-7
Publication status	Published - Feb 1997
Externally published	Yes

Scopus Subject Areas

General Chemistry
Condensed Matter Physics
Materials Chemistry

User-Defined Keywords

A. Disordered systems
A. Semiconductors
D. Electronic states
D. Order-disorder effects

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10.1016/S0038-1098(96)00621-7

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abstract = "Using a simplified but representative model for the physical structure of an amorphous semiconductor, we examine the corresponding distribution of potential fluctuations. We demonstrate that substantial deviations from a Gaussian distribution of potential fluctuations occur for reasonable parameter selections. We then use a semiclassical approach to study how the distribution of states is shaped by this distribution of potential fluctuations. We find that while the distribution of tail states is relatively heavily influenced by the distribution of potential fluctuations, the distribution of band states is not.",

keywords = "A. Disordered systems, A. Semiconductors, D. Electronic states, D. Order-disorder effects",

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AU - O'Leary, Stephen K.

AU - Lim, P. K.

PY - 1997/2

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N2 - Using a simplified but representative model for the physical structure of an amorphous semiconductor, we examine the corresponding distribution of potential fluctuations. We demonstrate that substantial deviations from a Gaussian distribution of potential fluctuations occur for reasonable parameter selections. We then use a semiclassical approach to study how the distribution of states is shaped by this distribution of potential fluctuations. We find that while the distribution of tail states is relatively heavily influenced by the distribution of potential fluctuations, the distribution of band states is not.

AB - Using a simplified but representative model for the physical structure of an amorphous semiconductor, we examine the corresponding distribution of potential fluctuations. We demonstrate that substantial deviations from a Gaussian distribution of potential fluctuations occur for reasonable parameter selections. We then use a semiclassical approach to study how the distribution of states is shaped by this distribution of potential fluctuations. We find that while the distribution of tail states is relatively heavily influenced by the distribution of potential fluctuations, the distribution of band states is not.

KW - A. Disordered systems

KW - A. Semiconductors

KW - D. Electronic states

KW - D. Order-disorder effects

UR - http://www.scopus.com/inward/record.url?scp=0031077420&partnerID=8YFLogxK

U2 - 10.1016/S0038-1098(96)00621-7

DO - 10.1016/S0038-1098(96)00621-7

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AN - SCOPUS:0031077420

SN - 0038-1098

VL - 101

SP - 513

EP - 517

JO - Solid State Communications

JF - Solid State Communications

IS - 7

ER -

The influence of the distribution of potential fluctuations on the distribution of states in amorphous semiconductors

Abstract

Scopus Subject Areas

User-Defined Keywords

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