• 文献标题:   Manipulation of structural color reflection in graphene oxide dispersions using electric fields
  • 文献类型:   Article
  • 作  者:   HONG SH, SHEN TZ, SONG JK
  • 作者关键词:  
  • 出版物名称:   OPTICS EXPRESS
  • ISSN:   1094-4087
  • 通讯作者地址:   Sungkyunkwan Univ
  • 被引频次:   16
  • DOI:   10.1364/OE.23.018969
  • 出版年:   2015

▎ 摘  要

Aqueous graphene oxide (GO) dispersions with a photonic crystal structure are carefully prepared to produce structural color reflection. We fabricate a simple reflective GO cell with a unique electrode design and demonstrate that the resulting structural color reflection is electrically erasable and rewritable. GO concentration and the direction of the electric field are vital factors in the development of the device. The resulting device works well, although it exhibits a rather slow response time; in particular, the spontaneous recovery time from dark to bright color reflection requires tens of minutes. Through the application of a horizontal electric field parallel to the substrate, the recovery time can be improved, resulting in a recovery period of 3 min. Although many unsolved issues remain, the findings in GO dispersion may provide a new possibility for color filter-less bi-stable color displays with low power consumption. (C) 2015 Optical Society of America