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나노 구조 물리 연구단
나노구조물리 연구단
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Directional dependent piezoelectric effect in CVD grown monolayer MoS2 for flexible piezoelectric nanogenerators

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Title
Directional dependent piezoelectric effect in CVD grown monolayer MoS2 for flexible piezoelectric nanogenerators
Author(s)
Kim, SK; Bhatia, R; Kim, TH; Seol, D; Jung Ho Kim; Hyun Kim; Seung, W; Kim, Y; Young Hee Lee; Kim, SW
Publication Date
2016-04
Journal
NANO ENERGY, v.22, no., pp.483 - 489
Publisher
ELSEVIER SCIENCE BV
Abstract
Due to the interesting semiconducting and optical properties of transition metal dichalcogenides, they have received particular attention for novel electronics and optoelectronics. In addition it is expected that piezoelectric properties of two-dimensional (2D) layered materials are very useful to realize next generation mechanically powered transparent flexible charge-generating devices. Here we report directional dependent piezoelectric effects in chemical vapor deposition grown monolayer MoS2 for flexible piezoelectric nanogenerators (NGs). It was found that the output power obtained from the NG with the armchair direction of MoS2 is about two times higher than that from the NG with the zigzag direction of MoS2 under the same strain of 0.48% and the strain velocity of 70 mm/s. This study provides a new way to effectively harvest mechanical energy using novel flexible piezoelectric NGs based on 2D semiconducting piezoelectric MoS2 for powering low power-consuming electronics and realizing self-powered sensors. (C) 2016 Elsevier Ltd. All rights reserved
URI
https://pr.ibs.re.kr/handle/8788114/2542
ISSN
2211-2855
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > Journal Papers (저널논문)
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