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Improved performance of hole-transporting layer-free perovskite solar cells by using graphene oxide sheets as the nucleation centers
Sun, X.; T. Lin; Q. G. Song; Y. Fu; Y. Wang; F. M. Jin; H. F. Zhao; W. L. Li; Z. S. Su and B. Chu
2017
Source PublicationRsc Advances
Volume7Issue:72
AbstractGraphene oxide sheets (GOSs) are introduced between indium tin oxide (ITO) and CH3NH3PbI3 in inverted hole-transport layer-free planar heterojunction perovskite solar cells. The concentration of the GOSs is extremely low and they are sporadically covered on the ITO substrates. Combined with the high resistance of these GOSs, they cannot be regarded as an interface layer. However, the GOSs can act as the nucleation sites in the crystal growth process of CH3NH3PbI3 films, which results in dramatically improved morphology and crystallization of the CH3NH3PbI3 films. As a result, the performance of the devices is significantly improved as compared with the reference device. The optimized device shows a power conversion efficiency of 6.62%, which is about 40% higher than the reference devices. This improvement is attributed to the increased charge carrier transporting property and reduced charge carrier recombination in the CH3NH3PbI3 films.
Indexed Bysci ; ei
Language英语
Document Type期刊论文
Identifierhttp://ir.ciomp.ac.cn/handle/181722/59206
Collection中科院长春光机所知识产出
Recommended Citation
GB/T 7714
Sun, X.,T. Lin,Q. G. Song,et al. Improved performance of hole-transporting layer-free perovskite solar cells by using graphene oxide sheets as the nucleation centers[J]. Rsc Advances,2017,7(72).
APA Sun, X..,T. Lin.,Q. G. Song.,Y. Fu.,Y. Wang.,...&Z. S. Su and B. Chu.(2017).Improved performance of hole-transporting layer-free perovskite solar cells by using graphene oxide sheets as the nucleation centers.Rsc Advances,7(72).
MLA Sun, X.,et al."Improved performance of hole-transporting layer-free perovskite solar cells by using graphene oxide sheets as the nucleation centers".Rsc Advances 7.72(2017).
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