Song EH, Ali G, Yoo SH, Jiang Q, Cho SO. Tuning electronic and magnetic properties of partially hydrogenated graphene by biaxial tensile strain: a computational study.
NANOSCALE RESEARCH LETTERS 2014;
9:491. [PMID:
25258610 PMCID:
PMC4167252 DOI:
10.1186/1556-276x-9-491]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Accepted: 09/05/2014] [Indexed: 06/03/2023]
Abstract
Using density functional theory calculations, we have investigated the effects of biaxial tensile strain on the electronic and magnetic properties of partially hydrogenated graphene (PHG) structures. Our study demonstrates that PHG configuration with hexagon vacancies is more energetically favorable than several other types of PHG configurations. In addition, an appropriate biaxial tensile strain can effectively tune the band gap and magnetism of the hydrogenated graphene. The band gap and magnetism of such configurations can be continuously increased when the magnitude of the biaxial tensile strain is increased. This fact that both the band gap and magnetism of partially hydrogenated graphene can be tuned by applying biaxial tensile strain provides a new pathway for the applications of graphene to electronics and photonics.
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