Thermal stability of boron nitride/silicon p-n heterojunction diodes

Kungen Tsutsui, Yusei Mizusako, Takuro Hori, Seiichiro Matsumoto

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Heterojunctions of p-type cubic boron nitride (cBN) and n-type silicon with sp2-bonded BN (sp2BN) interlayers are fabricated under low-energy ion impact by plasma-enhanced chemical vapor deposition, and their rectification properties are studied at temperatures up to 573?K. The rectification ratio is increased up to the order of 105 at room temperature by optimizing the thickness of the sp2BN interlayer and the cBN fraction for suppressing the reverse leakage current. A highly rectifying p-type cBN/thick sp2BN/n-type silicon junction diode shows irreversible rectification properties mainly characterized by a marked decrease in reverse current by an order of magnitude in an initial temperature ramp/down cycle. This irreversible behavior is much more reduced by conducting the cycle twice or more. The temperature-dependent properties confirm an overall increase in effective barrier heights for carrier injection and conduction by biasing at high temperatures, which consequently increases the thermal stability of the diode performance.

Original languageEnglish
Article number155102
JournalJournal of Applied Physics
Volume118
Issue number15
DOIs
Publication statusPublished - Oct 21 2015

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rectification
boron nitrides
heterojunctions
thermal stability
diodes
interlayers
silicon
silicon junctions
conduction
junction diodes
cycles
ion impact
carrier injection
ramps
temperature
leakage
vapor deposition
room temperature
energy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Thermal stability of boron nitride/silicon p-n heterojunction diodes. / Tsutsui, Kungen; Mizusako, Yusei; Hori, Takuro; Matsumoto, Seiichiro.

In: Journal of Applied Physics, Vol. 118, No. 15, 155102, 21.10.2015.

Research output: Contribution to journalArticle

Tsutsui, Kungen ; Mizusako, Yusei ; Hori, Takuro ; Matsumoto, Seiichiro. / Thermal stability of boron nitride/silicon p-n heterojunction diodes. In: Journal of Applied Physics. 2015 ; Vol. 118, No. 15.
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