Tunable Optical Transparency in Self-Assembled Three-Dimensional Polyhedral Graphene Oxide

Daeha Joung; Tingyi Gu; Jeong-Hyun Cho

doi:10.1021/acsnano.6b04971

Tunable Optical Transparency in Self-Assembled Three-Dimensional Polyhedral Graphene Oxide

ACS Nano. 2016 Oct 25;10(10):9586-9594. doi: 10.1021/acsnano.6b04971. Epub 2016 Sep 21.

Authors

Daeha Joung¹, Tingyi Gu², Jeong-Hyun Cho¹

Affiliations

¹ Department of Electrical and Computer Engineering, University of Minnesota , Minneapolis, Minnesota 55455, United States.
² Princeton Institute for the Science and Technology of Materials, Princeton University , Princeton, New Jersey 08544, United States.

PMID: 27617657
DOI: 10.1021/acsnano.6b04971

Abstract

The origami-like self-folding process is an intellectually stimulating technique for realizing three-dimensional (3D) polyhedral free-standing graphene oxide (GO) structures. This technique allows for easy control of size, shape, and thickness of GO membranes, which in turn permits fabrication of free-standing 3D microscale polyhedral GO structures. Unlike 2D GO sheets, the 3D polyhedral free-standing GO shows a distinct optical switching behavior, resulting from a combination of the geometrical effect of the 3D hollow structure and the water-permeable multilayered GO membrane that affects the optical paths.

Keywords: 2D materials; 3D microstructure; graphene oxide; origami; self-assembly.