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Spontaneous selective epitaxial growth of compositionally modulated AlGaAs with an orientation-dependent band gap

Hoenk, Michael E. and Vahala, Kerry J. (1990) Spontaneous selective epitaxial growth of compositionally modulated AlGaAs with an orientation-dependent band gap. In: Growth of Semiconductor Structures and High-Tc Thin Films on Semiconductors. Proceedings of SPIE. No.1285. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 170-181. ISBN 0819403369. https://resolver.caltech.edu/CaltechAUTHORS:20180709-142005419

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Abstract

We have demonstrated selective epitaxial growth of Al_xGa_(1-x)As, with an abrupt transition in the bandgap lateral to the growth direction. Spontaneous compositional modulation, with an associated reduction in the effective bandgap, occurs in AlGaAs grown by molecular beam epitaxy on the sides of grooves in a GaAs substrate. The bandgap is observed to be dependent on the groove orientation. Possible mechanisms for the orientation dependent growth are discussed.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.20819DOIArticle
ORCID:
AuthorORCID
Vahala, Kerry J.0000-0003-1783-1380
Additional Information:© 1990 Society of Photo-Optical Instrumentation Engineers (SPIE). The authors wish to acknowledge C. W. Nieh, Howard Z. Chen, Hadis Morkoç, and Amnon Yariv, who were collaborators in the initial stages of this work. We are grateful to Channing Ahn and Carol Garland, for their assistance with the transmission electron microscopy. We would like to acknowledge Larry Kapitan of Northeast Semiconductor, Inc., for supplying some of the molecular beam epitaxial growths used in this work. This work was supported by the Office of Naval Research.
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Funding AgencyGrant Number
Office of Naval Research (ONR)UNSPECIFIED
Series Name:Proceedings of SPIE
Issue or Number:1285
Record Number:CaltechAUTHORS:20180709-142005419
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20180709-142005419
Official Citation:Michael E. Hoenk, Kerry J. Vahala, "Spontaneous selective epitaxial growth of compositionally modulated AlGaAs with an orientation-dependent band gap", Proc. SPIE 1285, Growth of Semiconductor Structures and High-Tc Thin Films on Semiconductors, (1 October 1990); doi: 10.1117/12.20819; https://doi.org/10.1117/12.20819
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:87659
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:09 Jul 2018 22:37
Last Modified:03 Oct 2019 19:58

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