首页|High-response formamidine bromide lead hybrid cadmium sulfide photodetector
High-response formamidine bromide lead hybrid cadmium sulfide photodetector
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维普
Organic-inorganic hybrid perovskite formamidinium lead bromide nanosheet[FAPbBr3 NS]is regarded as a superior sub-stance used to construct optoelectronic devices.However,its uncontrollable stability seriously affects its application in the field of photodetectors.In this paper,FAPbBr3 is combined with cadmium sulfide nanobelt[CdS NB]to construct a hybrid device that greatly improves the stability and performance of the photodetector.The response of the FAPbBr3 NS/CdS NB detector under 490 nm light illumination reaches 5712 A/W,while the response of the FAPbBr3 photodetector under equiv-alent conditions is only 25.45 A/W.The photocurrent of the FAPbBr3 NS/CdS NB photodetector is nearly 80.25％of the initial device after exposure to air for 60 days.The difference in electric field distribution between the single material device and the composite device is simulated by the finite-difference time-domain method.It shows the advantages of composite devices in photoconductive gain and directly promotes the hybrid device performance.This paper presents a new possibility for high stability,fast response photodetectors.
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维普
