THE EFFECT OF GROWTH CONDITIONS ON THE OPTICAL AND STRUCTURAL PROPERTIES OF InGaN/GaN MQW LED STRUCTURES GROWN BY MOCVD
Abstract
Five period InGaN/GaN MQW LED wafers were grown by low pressure MOCVD on an AlN buffer layer, which was deposited on a c-plane (0001)-faced sapphire substrate. The effect of growth conditions, such as the well growth time, growth temperatures, and indium flow rate on the properties of MQW structures were investigated by using high resolution X-ray diffraction and room temperature photoluminescence. By increasing growth temperature, the emission wavelengths showed a blue-shift while it red-shifted via an increase in the indium flow rate. The emission wavelength can be tuned by way of changing the well growth time of the samples.
Keywords
References
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Details
Primary Language
English
Subjects
Engineering
Journal Section
Conference Paper
Publication Date
August 27, 2014
Submission Date
August 27, 2014
Acceptance Date
-
Published in Issue
Year 2014 Volume: 27 Number: 4