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나노입자 연구단
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Thermally Controlled, Patterned Graphene Transfer Printing for Transparent and Wearable Electronic/Optoelectronic System

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Title
Thermally Controlled, Patterned Graphene Transfer Printing for Transparent and Wearable Electronic/Optoelectronic System
Author(s)
Moon Kee Choi; Inhyuk Park; Dong Chan Kim; Eehyung Joh; Ok Kyu Park; Jaemin Kim; Myungbin Kim; Changsoon Choi; Jiwoong Yang; Kyoung Won Cho; Jae-Ho Hwang; Jwa-Min Nam; Taeghwan Hyeon; Ji Hoon Kim; Dae-Hyeong Kim
Publication Date
2015-12
Journal
ADVANCED FUNCTIONAL MATERIALS, v.25, no.46, pp.7109 - 7118
Publisher
WILEY-V C H VERLAG GMBH
Abstract
Graphene has been highlighted as a platform material in transparent electronics and optoelectronics, including fl exible and stretchable ones, due to its unique properties such as optical transparency, mechanical softness, ultrathin thickness, and high carrier mobility. Despite huge research efforts for graphene-based electronic/optoelectronic devices, there are remaining challenges in terms of their seamless integration, such as the high-quality contact formation, precise alignment of micrometer-scale patterns, and control of interfacial-adhesion/local-resistance. Here, a thermally controlled transfer printing technique that allows multiple patterned-graphene transfers at desired locations is presented. Using the thermal-expansion mismatch between the viscoelastic sacrifi cial layer and the elastic stamp, a “heating and cooling” process precisely positions patterned graphene layers on various substrates, including graphene prepatterns, hydrophilic surfaces, and superhydrophobic surfaces, with high transfer yields. A detailed theoretical analysis of underlying physics/mechanics of this approach is also described. The proposed transfer printing successfully integrates graphene-based stretchable sensors, actuators, light-emitting diodes, and other electronics in one platform, paving the way toward transparent and wearable multifunctional electronic systems. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
URI
https://pr.ibs.re.kr/handle/8788114/3370
ISSN
1616-301X
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > Journal Papers (저널논문)
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