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나노 구조 물리 연구단
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Oxidize Graphene by UV-Ozone Treatment in Vacuum Chamber

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Title
Oxidize Graphene by UV-Ozone Treatment in Vacuum Chamber
Author(s)
Dinh S.T.; Pham T.H.N.; Nguyen T.T.H.; Dinh N.T.N.; Vu V.Q.; Hoang T.K.D.; Dinh Loc Duong
Publication Date
2016-08
Journal
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.16, no.8, pp.7968 - 7972
Publisher
AMER SCIENTIFIC PUBLISHERS
Abstract
As changing graphene properties is vital to promote it as electronic device, we developed graphene modified method with epoxy group by two simple methods: ultraviolet irradiation with various partial oxygen pressures and ultraviolet irradiation under rich oxygen condition with various temperatures. By Hall measurement, the electric mobility in graphene was decreased with increasing temperature during UV-ozone treatment at 50 °C, 80 °C, 100 °C and 120 °C. At low partial oxygen pressure (less than 160 Torr) the oxidation degree is not significant. Additionally, Raman spectroscopy showed the disrupted π-π structure in graphene. Based on the above identification we supposed that epoxy group might establish on graphene surface. © 2016 American Scientific Publishers. All rights reserved
URI
https://pr.ibs.re.kr/handle/8788114/2794
ISSN
1533-4880
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > Journal Papers (저널논문)
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