Title
Environment about indium in G<inf>1-x</inf>In<inf>x</inf>N from in Ga K-edge XAFS
Date Issued
01 December 1997
Access level
metadata only access
Resource Type
journal article
Author(s)
Abstract
GaN doped with various amounts of In can be used to make diodes with colors from blue to green. In order to determine the effect of the In on the local nitrogen and gallium environment, we have collected both In and Ga K-edge XAFS data on films of Ga1-xInxN. The distribution of In in the GaN matrix was found to be random both by plotting the amplitude of the In-Ga/In peak vs. x and from more detailed fits, although small clusters of three or fewer In atoms cannot be ruled out. In-In and In-Ga atom pairs are of comparable bond length, increasing approximately linearly with concentration x. These atom-pair distances are between the Ga-Ga distance in GaN (3.18 Å) and the In-In distance in InN (3.52 Å). Ga edge data is consistent with this distribution, but further distortions make detailed fits more difficult.
Volume
7
Issue
2 Part 2
Language
English
OCDE Knowledge area
Química física
Scopus EID
2-s2.0-33750645550
ISSN of the container
11554339
Conference
Journal De Physique. IV : JP
Sources of information:
Directorio de Producción Científica
Scopus