Observing and tuning the density distribution of localized states of monolayer graphene oxide by using external electric field | Zendy

Yan Gao | Zendy; Chengbing Qin | Zendy; Zhixing Qiao | Zendy; BaoTian Wang | Zendy; Weidong Li | Zendy; Guofeng Zhang | Zendy; Ruiyun Chen | Zendy; Liantuan Xiao | Zendy; Suotang Jia | Zendy

Open Access

Observing and tuning the density distribution of localized states of monolayer graphene oxide by using external electric field

Author(s) -

Yan Gao,

Chengbing Qin,

Zhixing Qiao,

BaoTian Wang,

Weidong Li,

Guofeng Zhang,

Ruiyun Chen,

Liantuan Xiao,

Suotang Jia

Publication year - 2015

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.4916745

Subject(s) - electric field , graphene , materials science , monolayer , anisotropy , oxide , condensed matter physics , polarity (international relations) , field (mathematics) , density functional theory , fluorescence , nanotechnology , chemistry , optics , physics , computational chemistry , biochemistry , quantum mechanics , metallurgy , cell , mathematics , pure mathematics

The density distribution of localized states (DDLS) in monolayer graphene oxide (mGO) was observed and tuned under applied external electric field. The fluorescence anisotropy in mGO basal plane was observed which revealed the inhomogeneous DDLS. The enhanced and/or quenched fluorescence trajectories under electric field demonstrated the tuning of DDLS. Using the first-principles density-functional calculations, we demonstrated that the DDLS tuned by electric field could be attributed to the polarity effect of oxidized sp3 functional groups. The tunable DDLS is beneficial to improve and control the mGO's optoelectronic properties.

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