Semiconductor–Insulator–Semiconductor Diode Consisting of Monolayer MoS 2 , h-BN, and GaN Heterostructure - Archive ouverte HAL Access content directly
Journal Articles ACS Nano Year : 2015

Semiconductor–Insulator–Semiconductor Diode Consisting of Monolayer MoS 2 , h-BN, and GaN Heterostructure

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Abstract

We propose a semiconductor–insulator–semiconductor (SIS) heterojunction diode consisting of monolayer (1-L) MoS2, hexagonal boron nitride (h-BN), and epitaxial p-GaN that can be applied to high-performance nanoscale optoelectronics. The layered materials of 1-L MoS2 and h-BN, grown by chemical vapor deposition, were vertically stacked by a wet-transfer method on a p-GaN layer. The final structure was verified by confocal photoluminescence and Raman spectroscopy. Current–voltage (I–V) measurements were conducted to compare the device performance with that of a more classical p–n structure. In both structures (the p–n and SIS heterojunction diode), clear current-rectifying characteristics were observed. In particular, a current and threshold voltage were obtained for the SIS structure that was higher compared to that of the p–n structure. This indicated that tunneling is the predominant carrier transport mechanism. In addition, the photoresponse of the SIS structure induced by the illumination of visible light was observed by photocurrent measurements.
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Dates and versions

hal-02448369 , version 1 (22-01-2020)

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Cite

Hyun Jeong, Seungho Bang, Hye Min Oh, Hyeon Jun Jeong, Sung-Jin An, et al.. Semiconductor–Insulator–Semiconductor Diode Consisting of Monolayer MoS 2 , h-BN, and GaN Heterostructure. ACS Nano, 2015, 9 (10), pp.10032-10038. ⟨10.1021/acsnano.5b04233⟩. ⟨hal-02448369⟩

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