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Transferred wrinkled Al2O3 for highly stretchable and transparent graphene-carbon nanotube transistors

Cited 218 time in webofscience Cited 229 time in scopus
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Title
Transferred wrinkled Al2O3 for highly stretchable and transparent graphene-carbon nanotube transistors
Author(s)
Sang Hoon Chae; Yu, Woo Jong; Jung Jun Bae; Dinh Loc Duong; Perello, David; Hye Yun Jeong; Quang Huy Ta; Thuc Hue Ly; Quoc An Vu; Yun, Minhee; Duan, Xiangfeng; Lee, Young Hee
Subject
Dielectric layer, ; Future applications, ; Gate-leakage current, ; Inorganic dielectrics, ; Low operating voltage, ; Nanotube transistors, ; Polymer dielectrics, ; Stretchable electronics, ; Dielectric materials, ; Field effect transistors, ; Graphene, ; Carbon nanotubes
Publication Date
2013-05
Journal
NATURE MATERIALS, v.12, no.5, pp.403 - 409
Publisher
NATURE PUBLISHING GROUP
Abstract
Despite recent progress in producing transparent and bendable thin-film transistors using graphene and carbon nanotubes, the development of stretchable devices remains limited either by fragile inorganic oxides or polymer dielectrics with high leakage current. Here we report the fabrication of highly stretchable and transparent field-effect transistors combining graphene/single-walled carbon nanotube (SWCNT) electrodes and a SWCNT-network channel with a geometrically wrinkled inorganic dielectric layer. The wrinkled Al2O3 layer contained effective built-in air gaps with a small gate leakage current of 10-13 A. The resulting devices exhibited an excellent on/off ratio of ∼10 5, a high mobility of ∼40 cm2V-1s-1 and a low operating voltage of less than 1 V. Importantly, because of the wrinkled dielectric layer, the transistors retained performance under strains as high as 20% without appreciable leakage current increases or physical degradation. No significant performance loss was observed after stretching and releasing the devices for over 1,000 times. The sustainability and performance advances demonstrated here are promising for the adoption of stretchable electronics in a wide variety of future applications. © 2013 Macmillan Publishers Limited. All rights reserved.
URI
https://pr.ibs.re.kr/handle/8788114/1342
DOI
10.1038/NMAT3572
ISSN
1476-1122
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > 1. Journal Papers (저널논문)
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