Ultrafast 27 GHz cutoff frequency in vertical WSe2 Schottky diodes with extremely low contact resistance

Sung Jin Yang; Kyu-Tae Park; Jaeho Im; Sungjae Hong; Yangjin Lee; Byung-Wook Min; Kwanpyo Kim; Seongil Im

doi:10.1038/s41467-020-15419-1

Nature Communications (Mar 2020)

Ultrafast 27 GHz cutoff frequency in vertical WSe2 Schottky diodes with extremely low contact resistance

Sung Jin Yang,
Kyu-Tae Park,
Jaeho Im,
Sungjae Hong,
Yangjin Lee,
Byung-Wook Min,
Kwanpyo Kim,
Seongil Im

Affiliations

Sung Jin Yang: Department of Physics, Van der Waals Materials Research Center, Yonsei University
Kyu-Tae Park: Department of Electrical and Electronic Engineering, Yonsei University
Jaeho Im: Department of Electrical Engineering and Computer Science, The University of Michigan
Sungjae Hong: Department of Physics, Van der Waals Materials Research Center, Yonsei University
Yangjin Lee: Department of Physics, Van der Waals Materials Research Center, Yonsei University
Byung-Wook Min: Department of Electrical and Electronic Engineering, Yonsei University
Kwanpyo Kim: Department of Physics, Van der Waals Materials Research Center, Yonsei University
Seongil Im: Department of Physics, Van der Waals Materials Research Center, Yonsei University

DOI: https://doi.org/10.1038/s41467-020-15419-1
Journal volume & issue: Vol. 11, no. 1
pp. 1 – 9

Abstract

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Two-dimensional materials show promise for 5G wireless communication applications. Here, the authors report vertical Schottky diodes based on thick mechanically exfoliated WSe2 flakes having low ohmic contact resistance of 50 Ω and ultrafast cutoff frequency of 27 GHz.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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