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Choi, Kyoung Jin
Energy Conversion Materials (EcoMAT) Lab
Research Interests
  • Solar cells, thermoelectrics, piezoelectric

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Effects of photowashing treatment on electrical properties of an AlGaN/GaN heterostructure field-effect transistor

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Title
Effects of photowashing treatment on electrical properties of an AlGaN/GaN heterostructure field-effect transistor
Author
Choi, Kyoung JinJeon, CMJang, HWLee, JL
Keywords
GAAS-MESFET; GAN; SURFACE
Issue Date
2002-07
Publisher
A V S AMER INST PHYSICS
Citation
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, v.20, no.4, pp.1574 - 1577
Abstract
The changes in atomic composition and surface states at the surface of AlGaN caused by photowashing treatment were studied by synchrotron radiation photoemission spectroscopy (SRPES). The effect of surface treatment on the electrical properties of AlGaN/GaN HFETs was examined by both current-voltage (I-V) and transconductance dispersion measurements. From these, the origin of changes in electrical properties caused by the photowashing treatment was proposed.
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DOI
10.1116/1.1491554
ISSN
1071-1023
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MSE_Journal Papers
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