Manipulation of electrical properties in CVD-grown twisted bilayer graphene induced by dissociative hydrogen adsorption

Sung Ju Hong; Min Park; Hojin Kang; Minwoo Lee; David Soler-Delgado; Dae Hong Jeong; Yung Woo Park; Byung Hoon Kim

doi:10.1016/j.cap.2016.09.019

Manipulation of electrical properties in CVD-grown twisted bilayer graphene induced by dissociative hydrogen adsorption

Sung Ju Hong
, Min Park
, Hojin Kang
, Minwoo Lee
, David Soler-Delgado
, Dae Hong Jeong
, Yung Woo Park
, Byung Hoon Kim

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

We report hydrogen adsorption on twisted bilayer graphene (tBLG). Raman spectroscopy and the electrical transport properties (electrical resistance and thermoelectric power) confirm the electron doping by hydrogen adsorption, in agreement with the previous report involving exfoliated bilayer graphene (BLG). Common electron doping behaviors were observed at various twist angles (0°, 5°, 12.5°, and 30°), and the adsorptions follow the first-order Langmuir-type adsorption model. Specifically, we analyzed the off-state currents, with band-gap openings of around 13 meV in tBLG with twist angle of 0°, as in Bernal-stacked BLG.

Original language	English
Pages (from-to)	1637-1641
Number of pages	5
Journal	Current Applied Physics
Volume	16
Issue number	12
DOIs	https://doi.org/10.1016/j.cap.2016.09.019
State	Published - Dec 1 2016
Externally published	Yes

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title = "Manipulation of electrical properties in CVD-grown twisted bilayer graphene induced by dissociative hydrogen adsorption",

abstract = "We report hydrogen adsorption on twisted bilayer graphene (tBLG). Raman spectroscopy and the electrical transport properties (electrical resistance and thermoelectric power) confirm the electron doping by hydrogen adsorption, in agreement with the previous report involving exfoliated bilayer graphene (BLG). Common electron doping behaviors were observed at various twist angles (0°, 5°, 12.5°, and 30°), and the adsorptions follow the first-order Langmuir-type adsorption model. Specifically, we analyzed the off-state currents, with band-gap openings of around 13 meV in tBLG with twist angle of 0°, as in Bernal-stacked BLG.",

author = "Hong, \{Sung Ju\} and Min Park and Hojin Kang and Minwoo Lee and David Soler-Delgado and Jeong, \{Dae Hong\} and Park, \{Yung Woo\} and Kim, \{Byung Hoon\}",

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doi = "10.1016/j.cap.2016.09.019",

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T1 - Manipulation of electrical properties in CVD-grown twisted bilayer graphene induced by dissociative hydrogen adsorption

AU - Hong, Sung Ju

AU - Park, Min

AU - Kang, Hojin

AU - Lee, Minwoo

AU - Soler-Delgado, David

AU - Jeong, Dae Hong

AU - Park, Yung Woo

AU - Kim, Byung Hoon

PY - 2016/12/1

Y1 - 2016/12/1

N2 - We report hydrogen adsorption on twisted bilayer graphene (tBLG). Raman spectroscopy and the electrical transport properties (electrical resistance and thermoelectric power) confirm the electron doping by hydrogen adsorption, in agreement with the previous report involving exfoliated bilayer graphene (BLG). Common electron doping behaviors were observed at various twist angles (0°, 5°, 12.5°, and 30°), and the adsorptions follow the first-order Langmuir-type adsorption model. Specifically, we analyzed the off-state currents, with band-gap openings of around 13 meV in tBLG with twist angle of 0°, as in Bernal-stacked BLG.

AB - We report hydrogen adsorption on twisted bilayer graphene (tBLG). Raman spectroscopy and the electrical transport properties (electrical resistance and thermoelectric power) confirm the electron doping by hydrogen adsorption, in agreement with the previous report involving exfoliated bilayer graphene (BLG). Common electron doping behaviors were observed at various twist angles (0°, 5°, 12.5°, and 30°), and the adsorptions follow the first-order Langmuir-type adsorption model. Specifically, we analyzed the off-state currents, with band-gap openings of around 13 meV in tBLG with twist angle of 0°, as in Bernal-stacked BLG.

UR - https://www.scopus.com/pages/publications/84991702474

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DO - 10.1016/j.cap.2016.09.019

M3 - Article

SN - 1567-1739

VL - 16

SP - 1637

EP - 1641

JO - Current Applied Physics

JF - Current Applied Physics

IS - 12

ER -

Manipulation of electrical properties in CVD-grown twisted bilayer graphene induced by dissociative hydrogen adsorption

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