Orientation Control of Graphene Flakes by Magnetic Field: Broad Device Applications of Macroscopically Aligned Graphene

Feng Lin; Zhuan Zhu; Xufeng Zhou; Wenlan Qiu; Chao Niu; Jonathan Hu; Keshab Dahal; Yanan Wang; Zhenhuan Zhao; Zhifeng Ren; Dimitri Litvinov; Zhaoping Liu; Zhiming M Wang; Jiming Bao

doi:10.1002/adma.201604453

Orientation Control of Graphene Flakes by Magnetic Field: Broad Device Applications of Macroscopically Aligned Graphene

Adv Mater. 2017 Jan;29(1). doi: 10.1002/adma.201604453. Epub 2016 Nov 10.

Authors

Feng Lin^{1

2}, Zhuan Zhu², Xufeng Zhou^{3

4}, Wenlan Qiu⁵, Chao Niu⁶, Jonathan Hu⁶, Keshab Dahal⁷, Yanan Wang^{1

2}, Zhenhuan Zhao^{1

2}, Zhifeng Ren⁷, Dimitri Litvinov^{2

5}, Zhaoping Liu^{3

4}, Zhiming M Wang^{1

8}, Jiming Bao^{1

2

5}

Affiliations

¹ Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610054, China.
² Department of Electrical and Computer Engineering, University of Houston, Houston, TX, 77204, USA.
³ Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang, 315201, China.
⁴ Key Laboratory of Graphene Technologies and Applications of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang, 315201, China.
⁵ Materials Science and Engineering, University of Houston, Houston, TX, 77204, USA.
⁶ Department of Electrical and Computer Engineering, Baylor University, Waco, TX, 76798, USA.
⁷ Department of Physics and TcSUH, University of Houston, Houston, TX, 77204, USA.
⁸ State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610054, China.

PMID: 27862419
DOI: 10.1002/adma.201604453

Abstract

Owing to a large diamagnetism, graphene flakes can respond and be aligned to magnetic field like a ferromagnetic material. Aligned graphene flakes exhibit emergent properties approaching single-layer graphene. Anisotropic optical properties also give rise to a magnetic writing board using graphene suspension and a bar magnet as a pen. This simple alignment technique opens up enormous applications of graphene.

Keywords: diamagnetism; displays; graphene; magnetic alignment; orientation control.