Modulation of the optical transmittance in monolayer graphene oxide by using external electric field.
Modulation of the optical transmittance in monolayer graphene oxide by using external electric field.
复制标题
利用外电场调制单层氧化石墨烯的光透射率
DOI:
10.1038/srep14441
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发表时间:
2015-09-25
影响因子:
4.6
通讯作者:
Jia S
中科院分区:
文献类型:
--
作者:
Qiao Z;Qin C;Gao Y;Zhang G;Chen R;Xiao L;Jia S
Graphene oxide (GO) emerges as a functional material in optoelectronic devices due to its broad spectrum response and abundant optical properties. In this article, it is demonstrated that the change of optical transmittance amplitude for monolayer GO (mGO) could be up to 24.8% by an external electric field. The frequency harmonics for transmittance spectra are analyzed by use of Fast Fourier Transforms to give an insight into the modulation mechanism. Two physical models, the electrical permittivity and the sheet conductivity which linearly vary as the electric field, are proposed to response for the transmittance modulation. The model-based simulations agree reasonable well with the experimental results.
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