期刊
JOURNAL OF APPLIED PHYSICS
卷 94, 期 5, 页码 3069-3074出版社
AMER INST PHYSICS
DOI: 10.1063/1.1600828
关键词
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The electrical properties, deep level spectra, and microcathodoluminescence (MCL) spectra of p-GaN films implanted with 100 keV protons are reported. Measurable decreases of the MCL intensity began for doses as low as 10(12) cm(-2), while measurable decreases of the hole concentration started for doses of 10(13) cm(-2). The main deep traps introduced by protons had activation energies of 0.3, 0.6, and 0.9 eV. The 0.3 and 0.9 eV traps are located in the lower half of the band gap and determine the temperature dependence of the forward current in heavily proton implanted Schottky diodes. (C) 2003 American Institute of Physics.
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