Investigation on the Ion-Gel Dielectric Characteristics for Graphene Transistor Toward Flexible and Transparent Devices
- Authors
- Kim, Taegeun; Kim, Un Jeong; Son, Hyung Bin; Hur, Jaehyun
- Issue Date
- Sep-2017
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- Ion-Gel; Graphene; Transistors; Flexible; Transparent
- Citation
- SCIENCE OF ADVANCED MATERIALS, v.9, no.9, pp 1589 - 1594
- Pages
- 6
- Journal Title
- SCIENCE OF ADVANCED MATERIALS
- Volume
- 9
- Number
- 9
- Start Page
- 1589
- End Page
- 1594
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/1597
- DOI
- 10.1166/sam.2017.3160
- ISSN
- 1947-2935
1947-2943
- Abstract
- We systematically investigated the effect of chemical property of ion-gel on the graphene FET performances in terms of on/off ratio, Dirac point voltage, and transconductace. The chemical property of ion-gel was controlled by the various UV-crosslinking conditions for ion gel formation. Our experiments revealed that UV exposure time and composition ratio for the ion-gel dielectric play important roles in modulating graphene FET characteristics. At an optimized condition, our device showed not only very high on/off ratio (similar to 20), but low operable gate-source voltage range (<2 V). Besides, by taking advantages of elastic and transparent properties of our ion-gel, we demonstrated the fabrication of flexible and transparent ion-gel top-gated graphene FET on plastic substrate with high performances.
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Collections - College of ICT Engineering > School of Integrative Engineering > 1. Journal Articles
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