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Measurement of piezoelectric field in single- and double-quantum-well green LEDs using electroreflectance spectroscopy

Title
Measurement of piezoelectric field in single- and double-quantum-well green LEDs using electroreflectance spectroscopy
Author
신동수
Keywords
Physics; Applied Physics
Issue Date
2014-09
Publisher
IOP PUBLISHING LTD
Citation
JAPANESE JOURNAL OF APPLIED PHYSICS, 2014, 53(9), P.098002-1~098002-3
Abstract
High piezoelectric field in green light-emitting diodes (LEDs) has been a challenge for direct measurement for a long time. In this work, we report the direct experimental measurement of the large piezoelectric field in green LEDs by using single- and double-quantum-well samples with the electroreflectance spectroscopy at room temperature. Comparison with the theoretical prediction indicates that there is an influence of defects in reducing the piezoelectric field. in green LED samples. (C) 2014 The Japan Society of Applied Physics
URI
http://iopscience.iop.org/article/10.7567/JJAP.53.098002/metahttp://hdl.handle.net/20.500.11754/57262
ISSN
0021-4922; 1347-4065
DOI
10.7567/JJAP.53.098002
Appears in Collections:
GRADUATE SCHOOL[S](대학원) > BIONANOTECHNOLOGY(바이오나노학과) > Articles
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