Charge transfer in the fullerene C60-few layer graphene system and the existence of negative photoconductivity

被引:17
作者
Bautista-Flores, C. [1 ]
Sato-Berru, R. Y. [2 ]
Mendoza, D. [1 ]
机构
[1] Univ Nacl Autonoma Mexico, Inst Invest Mat, Mexico City 04510, DF, Mexico
[2] Univ Nacl Autonoma Mexico, Ctr Ciencias Aplicadas & Desarrollo Tecnol, Mexico City 04510, DF, Mexico
关键词
CONDUCTING POLYMER; RAMAN; BUCKMINSTERFULLERENE; ELECTRON; SPECTRUM;
D O I
10.1063/1.4902055
中图分类号
O59 [应用物理学];
学科分类号
摘要
The electrical conductance of few layer graphene during thermal evaporation of fullerene C-60 as well as the conductance under illumination of this bilayer junction is reported. We obtained few layer graphene films by chemical vapor deposition technique, and then C-60 was thermally evaporated on these films. We found an increase in conductance of few layer graphene during the thermal evaporation of C-60 and a kind of negative photoconductivity when the bilayer junction was under illumination. We observed that at low light intensities few layer graphene is p-type doped, and we propose that its behavior changes to n-type for high light intensities. (C) 2014 AIP Publishing LLC.
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页数:3
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