期刊论文

Tang, ZK

英文

DALTON TRANSACTIONS

1477-9226

2023

52

32

11067-11075

10.1039/d3dt01807e

Research Foundation of Education Bureau of Hunan Province, China [22A0505, 21C0549]; Hunan Provincial Natural Science Foundation of China [2022JJ40008]; Postgraduate Scientific Research Innovation Project of Hunan Province [CX20221264, CX20231262]; Key Laboratory of Micro-nano Energy Materials and Application Technologies, University of Hunan Province

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Two-dimensional Ruddlesden-Popper (2D RP) perovskites can form layered protective materials using long organic cations as "barrier" caps, which is expected to solve the problem of instability of perovskites in the working environment. In this work, we systematically studied the 2D Ruddlesden-Popper (C(6)H(5)CH(2)NH(3))(2)PbI(4) hybrid perovskites using density functional theory. The results reveal that the 2D (C(6)H(5)CH(2)NH(3))(2)PbI(4) perovskites are semiconductors with band gaps of 2.22 eV. The optical absorption peak of the 2D (C(6)H(5)CH(2)NH(3))(2)PbI(4) perovskite structure is located...