Control of crystalline structure and FET property of MoTe2 by laser irradiation

Kota Kamiya; Tomoki Yamanaka; Trever Shimokusu; Hidemasu Ouchi; Kohei Sakanashi; Masahiro Matsunaga; Peter Krüger; Katsuhiko Miyamoto; Takashige Omatsu; Jonathan P. Bird; Nobuyuki Aoki

2017 OPJ-OSA Joint Symposia on Nanophotonics and Digital Photonics
OSA Technical Digest (online) (Optica Publishing Group, 2017),
paper 30pON5

Control of crystalline structure and FET property of MoTe₂ by laser irradiation

Kota Kamiya, Tomoki Yamanaka, Trever Shimokusu, Hidemasu Ouchi, Kohei Sakanashi, Masahiro Matsunaga, Peter Krüger, Katsuhiko Miyamoto, Takashige Omatsu, Jonathan P. Bird, and Nobuyuki Aoki

Optics and Photonics Japan 2017

University of Tsukuba, Tokyo Japan
30–31 October 2017
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Nanophotonics - Optical Manipulation 2 (NOM2)

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K. Kamiya, T. Yamanaka, T. Shimokusu, H. Ouchi, K. Sakanashi, M. Matsunaga, P. Krüger, K. Miyamoto, T. Omatsu, J. P. Bird, and N. Aoki, "Control of crystalline structure and FET property of MoTe2 by laser irradiation," in 2017 OPJ-OSA Joint Symposia on Nanophotonics and Digital Photonics, T. Omatsu, ed., OSA Technical Digest (online) (Optica Publishing Group, 2017), paper 30pON5.

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Abstract

We have succeeded to control the crystalline structure of MoTe₂ crystals from 2H structure by focused-green laser irradiation. The structural change has been confirmed by Raman scattering spectroscopy. Consequently, the electrical property changed from semiconducting to metallic. These techniques would be useful to fabricate a monolithic electronics within a TMDC crystal for future flexible devices application.

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