Passivating the vacancy defects of CsPbCl<sub>3</sub> polycrystalline films by a Cl-containing ionic liquid for self-powered, charge-transport-layer-free UV photodetectors
Siyi Cheng, Xin Zheng, Ze‐Liang Hou, Ruyi Hu, Shulan Jiang, Shuang Xi, Guojun Wen, Xingyue Liu
Abstract
A defect passivation strategy using [BMMIm]Cl ion liquid is demonstrated for the fabrication of high-performance, charge-transport-layer-free CsPbCl 3 UV photodetectors, achieveing an ultrahigh on/off ratio of 2.70 × 10 5 at 0 V bias.
Topics & Concepts
Materials sciencePassivationPhotodetectorIonic liquidCrystalliteVacancy defectLayer (electronics)IonFabricationCharge (physics)OptoelectronicsAnalytical Chemistry (journal)NanotechnologyCondensed matter physicsMetallurgyCatalysisOrganic chemistryPathologyAlternative medicineQuantum mechanicsPhysicsChemistryMedicinePerovskite Materials and ApplicationsSolid-state spectroscopy and crystallographyQuantum Dots Synthesis And Properties