Article Modulation of electrical potential and conductivity in an atomic-layer semiconductor heterojunction

Yu Kobayashi ; Shoji Yoshida ; Ryuji Sakurada ; Kengo Takashima ; Takahiro Yamamoto ; Tetsuki Saito ; Satoru Konabe ; Takashi Taniguchi SAMURAI ORCID (National Institute for Materials ScienceROR) ; Kenji Watanabe SAMURAI ORCID (National Institute for Materials ScienceROR) ; Yutaka Maniwa ; Osamu Takeuchi ; Hidemi Shigekawa ; Yasumitsu Miyata

srep31223.pdf
Download file (1.46 MB)
Download as zip (1.16 MB)
Collection

Citation
Yu Kobayashi, Shoji Yoshida, Ryuji Sakurada, Kengo Takashima, Takahiro Yamamoto, Tetsuki Saito, Satoru Konabe, Takashi Taniguchi, Kenji Watanabe, Yutaka Maniwa, Osamu Takeuchi, Hidemi Shigekawa, Yasumitsu Miyata. Modulation of electrical potential and conductivity in an atomic-layer semiconductor heterojunction. Scientific Reports. 2016, 6 (1), 31223. https://doi.org/10.1038/srep31223
SAMURAI

Description:

(abstract)

We report conductivity enhancement and electrical potential modulation of heterojunction interfaces based on TMDC bilayers consisted of MoS2 and WS2. Scanning tunneling analyses showed the formation of 1D confining potential in the valence (conduction) band, as well as bandgap narrowing around the heterointerface. The modulation of electronic properties were also probed as the increase of current in conducting atomic force microscopy. The observed band bending can be explained by the presence of 1D fixed charges due to piezoelectric interface polarization. The present findings indicate that the atomic layer heterojunctions provide a novel approach to realizing tunable 1D electrical potential for embedded quantum wires and ultrashort barriers of electrical transport.

Rights:

Keyword: Semiconductor heterojunction, transition metal dichalcogenides, electrical properties

Date published: 2016-08-12

Publisher: Springer Science and Business Media LLC

Journal:

  • Scientific Reports (ISSN: 20452322) vol. 6 issue. 1 31223

Funding:

Manuscript type: Publisher's version (Version of record)

MDR DOI:

First published URL: https://doi.org/10.1038/srep31223

Related item:

Other identifier(s):

Contact agent:

Updated at: 2025-03-01 08:30:20 +0900

Published on MDR: 2025-03-01 08:30:20 +0900

Filename Size
Filename srep31223.pdf (Thumbnail)
application/pdf 		Size 1.46 MB Detail