Share Email Print

Proceedings Paper

The preparation and application of white graphene
Author(s): Chenghong Zhou
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

In this article, another thin film named white graphene is introduced, containing its properties, preparation and potential applications. White graphene, which has the same structure with graphene but quite different electrical properties, can be exfoliated from its layered crystal, hexagonal boron nitride. Here two preparation methods of white graphene including supersonic cleavage and supercritical cleavage are presented. Inspired by the cleavage of graphene oxide, supersonic is applied to BN and few-layered films are obtained. Compared with supersonic cleavage, supercritical cleavage proves to be more successful. As supercritical fluid can diffuse into interlayer space of the layered hexagonal boron nitride easily, once reduce the pressure of the supercritical system fast, supercritical fluid among layers expands and escapes form interlayer, consequently exfoliating the hexagonal boron nitride into few layered structure. A series of characterization demonstrate that the monolayer white graphene prepared in the process matches its theoretical thickness 0.333nm and has lateral sizes at the order of 10μm. Supercritical cleavage proves to be successful and shows many advantages, such as good production quality and fast production cycle. Furthermore, the band energy of white graphene, which shows quite different from graphene, is simulated via tight-bonding in theory. The excellent properties will lead to extensive applications of white graphene. As white graphene has not received enough concern and exploration, it’s potential to play a significant role in the fields of industry and science.

Paper Details

Date Published: 18 December 2014
PDF: 6 pages
Proc. SPIE 9295, International Symposium on Optoelectronic Technology and Application 2014: Laser Materials Processing; and Micro/Nano Technologies, 929515 (18 December 2014); doi: 10.1117/12.2072269
Show Author Affiliations
Chenghong Zhou, Beijing Institute of Tracking and Telecommunication Technology (China)
Shanghai Jiao Tong Univ. (China)

Published in SPIE Proceedings Vol. 9295:
International Symposium on Optoelectronic Technology and Application 2014: Laser Materials Processing; and Micro/Nano Technologies
Guofan Jin; Songlin Zhuang; Jennifer Liu, Editor(s)

© SPIE. Terms of Use
Back to Top