Colors of graphene and graphene-oxide multilayers on various substrates

被引：50

作者：

Jung, Inhwa ^{[1
]}

Rhyee, Jong-Soo ^{[2
]}

Son, Jong Yeog ^{[2
]}

Ruoff, Rodney S. ^{[3
]}

Rhee, Kyong-Yop ^{[1
]}

机构：

[1] Kyung Hee Univ, Dept Mech Engn, Suwon 446701, South Korea

[2] Kyung Hee Univ, Coll Appl Sci, Dept Appl Phys, Suwon 446701, South Korea

[3] Univ Texas Austin, Dept Mech Engn, Austin, TX 78712 USA

来源：

NANOTECHNOLOGY | 2012年 / 23卷 / 02期

基金：

新加坡国家研究基金会;

关键词：

GRAPHITE OXIDE; FILMS; SHEETS; TRANSPARENT; SILICON; SIO2;

D O I：

10.1088/0957-4484/23/2/025708

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We investigated the colors of graphene and graphene-oxide multilayers that were deposited on various dielectric layers. In particular, the effects of the material thickness, the types of dielectric layers, and the existence of a back silicon substrate were analyzed. The colors of graphene-oxide layers on a SiO(2)/Si substrate were found to periodically change as the material thickness increased. However, the colors of graphene layers on the same substrate became saturated without a similar periodic change. The calculated colors corresponding to the material thicknesses were verified by optical microscopy and profilometry. We believe that these results demonstrate the possibility of utilizing color as a simple tool for detecting and estimating the thicknesses of graphene and graphene-oxide multilayers.

引用

页数：8

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