Posteffects of photoreduction of graphene oxide films

V. A. Smirnov; V. G. Plotnikov; A. D. Mokrushin; E. V. Egorov

doi:10.1134/S001814391706008X

Posteffects of photoreduction of graphene oxide films

作者: Smirnov V.A.¹^,2, Plotnikov V.G.²^,3, Mokrushin A.D.⁴, Egorov E.V.⁴
隶属关系:
1. Institute of Problems of Chemical Physics
2. Tomsk State University
3. Photochemistry Center
4. Institute of Microelectronics Technology and High Purity Materials
期: 卷 51, 编号 6 (2017)
页面: 420-423
栏目: Photochemistry
URL: https://journals.rcsi.science/0018-1439/article/view/157283
DOI: https://doi.org/10.1134/S001814391706008X
ID: 157283

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详细

The dark process (posteffect) of increasing the electrical conductivity and spectral absorption in the graphene oxide (GO) film after its preliminary UV irradiation has been studied. The posteffect is due to the conformational relaxation of the structure (flattening) of GO nanosheets after the UV-induced dissociation of oxygen-containing groups. At room temperature, the relaxation time is τ ≈ 300 h and the activation energy in the range of 20–70°C is E_a ≈ 0.6 eV.