Interpolation of quaternary III-V alloy parameters with surface bowing estimations

Interpolation of quaternary III-V alloy parameters with surface bowing estimations

We present the weighted-sum expression of quaternary parameter estimations via balancing surface bowing estimation errors. Expressions have been derived for both quaternary alloys AxByCzD and AxB1-xCyD1-y and applied to the band gaps of AlGaInAs, AlGaInP, InAsPSb, GaInAsP, and GaInAsSb. Approximatio...

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Bibliographic Details
Main Author: Mei, Ting
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2010
Subjects:
DRNTU::Engineering::Electrical and electronic engineering::Electronic apparatus and materials
Online Access:https://hdl.handle.net/10356/90538
http://hdl.handle.net/10220/6418
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Institution: Nanyang Technological University
Language: English
Description
Summary:We present the weighted-sum expression of quaternary parameter estimations via balancing surface bowing estimation errors. Expressions have been derived for both quaternary alloys AxByCzD and AxB1-xCyD1-y and applied to the band gaps of AlGaInAs, AlGaInP, InAsPSb, GaInAsP, and GaInAsSb. Approximation can be improved by fitting known data of quaternary alloys and maximum deviations are less than 20 meV with respect to the lattice-matched polynomial expressions.

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