Journal article

Reduced graphene oxide assisted charge separation and serving as transport pathways in planar perovskite photodetector

WL Xu, C Ding, MS Niu, XY Yang, F Zheng, J Xiao, M Zheng, XT Hao

Organic Electronics | Elsevier | Published : 2020

Abstract

Graphene derivatives have been intensively investigated as the electron transporting layer and conductive electrodes in perovskite optoelectronic devices. In this work, reduced graphene oxide (RGO) dispersed in nonpolar solvent was achieved by surfactant assisted phase transfer method. The hybrid perovskite/RGO film was prepared by antisolvent treatment. The volume ratio between perovskite and RGO solution is an important parameter that affects the perovskite device performance. The optimal ratio is 1:10 in perovskite photodetector owing to the high photocurrent and on/off ratio. However, lower or larger ratio would result in insufficient charge transfer or short circuit respectively. The sp..

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University of Melbourne Researchers

Grants

Awarded by National Natural Science Foundation of China


Awarded by Natural Science Foundation of Jiangsu Province


Awarded by Natural Science Foundation of Jiangsu Higher Education


Funding Acknowledgements

This work was supported by the National Natural Science Foundation of China (Nos.61804015, 11574181), Natural Science Foundation of Jiangsu Province (Nos.BK20180181, BK20170292), the Natural Science Foundation of Jiangsu Higher Education (No.17KJB140001), Science & Technology Foundation of Changzhou (No.CJ20180051).