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
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..View full abstract
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
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).