Reduced graphene oxide-induced crystallization of CuPc interfacial layer for high performance of perovskite photodetectors.

ABSTRACT: Perovskite-based photodetectors have great potential in light-signal conversion; the suppression of the dark current is regarded as one of the main concerns within the academic research communities to achieve a high-performance photodetector. Interfacial engineering in the transport layer is considered as one of the most essential methods for enhancement of perovskite photodetectors. Here, a nanocomposite thin film of tetra-sulfonated copper phthalocyanines and reduced graphene oxide (TS-CuPc/rGO) was investigated as the interfacial layer in perovskite-based photodetectors. Photodetectors with the TS-CuPc/rGO thin film as the interfacial layer exhibited a low dark current density of 2.2 × 10^-8 A cm^-2 at bias of -0.1 V as well as high responsivity and detectivity of ∼3

SUBMITTER: Zou T 

PROVIDER: S-EPMC9060245 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature