期刊
APPLIED PHYSICS EXPRESS
卷 11, 期 11, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.7567/APEX.11.111003
关键词
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资金
- ARPA-E PNDI-ODES Program
- NSF [NNCI-1542160]
We report nonpolar vertical GaN-on-GaN p-n diodes grown on rn-plane free-standing substrates. Cathodoluminescence measurements showed that the nonpolar p-GaN had a high quality with very few deep-level states. The device exhibited good rectifying behaviors with a turn-on voltage of 4.0 V, on-resistance of 2.3 m Omega.cm(2), and high on/off ratio of 10(10). The reverse current leakage was described by a trap-assisted space-charge-limited current conduction mechanism. The critical electrical field was calculated to be 2.0 MV/cm without field plates or edge termination. These results pave the way for development of novel nonpolar power electronics and polarization-engineering-related advanced power devices. (C) 2018 The Japan Society of Applied Physics
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