The graphite oxide (GO) was prepared based on the modified Hummers method, then reacted with
zinc acetate aqueous, sodium hydroxide aqueous and hydrazine hydrate, and was doped into ZnO eventually to
form graphene doped ZnO, an alternative transparent conducting oxide (TCO) for solar cell applications. The
samples were characterized by Raman spectrometer, X-ray diffractometer, Fourier transform infrared spectroscopy
and scanning electron microscope, and compared with widely used aluminum doped ZnO (AZO) in resistivity and
transmissivity. The results show that the transmissivity of graphene doped ZnO reaches the same level as that
of AZO in visible light band. In ultraviolet light wave band, the transmissivity of graphene doped ZnO reaches
as high as 50%, exceeding that of AZO which is only 20%. The resistivity of optimized graphene doped ZnO is 1.03 × 10?5 Ω · m, approaching AZO resistivity which is about 10
?4—10?6 Ω · m. As a result, graphene doped ZnO may have potential applications in the area of TCO due to its low cost and high performance.
LI Pan-pan1 (李盼盼), MEN Chuan-ling1* (门传玲), LI Zhen-peng1 (李振鹏),CAO Min1 (曹敏), AN Zheng-hua2 (安正华)
. Study of Graphene Doped Zinc Oxide Nanocomposite as Transparent Conducting Oxide Electrodes for Solar Cell Applications[J]. Journal of Shanghai Jiaotong University(Science), 2014
, 19(3)
: 378
-384
.
DOI: 10.1007/s12204-014-1512-8
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