摘要
We develop the effective modification strategy based on molecular engineering of s-triazine and its derivatives to improve the photoelectric performance of all-inorganic perovskites(AIP)for the first time.The surface modification strategy with cyanuric acid successfully increases the PLQY of AIP from 40.55%to 88.15%,and significantly enhances the current of the AIP film under 3 V by almost 20-fold(from4.44 m A to 81.20 m A).This work has proven the effectiveness of improving the photoelectric performances of AIP via s-triazine and its derivatives and also suggested the potential risks of reducing the photoelectric performance of AIP due to inappropriate substituents in conjugated organic ligands.
基金
funded by National Natural Science Foundation of China(No.52073045)
the Key Scientific and Technological Project of Jilin Province(No.20190701010GH)
the Development and Reform Commission of Jilin Province(No.2020C0355)
the support from the Key Laboratory of Nanobiosensing and Nanobioanalysis at the Universities of Jilin Province
the support from the Jilin Provincial Department of Education。
