Issue 39, 2016

Understanding of the formation of shallow level defects from the intrinsic defects of lead tri-halide perovskites

Abstract

Organic–inorganic hybrid perovskites have unique electronic properties in which deep level defects are rarely formed. This unique defect characteristic is the source of the long carrier diffusion length. This theoretical study shows what causes this characteristic formation of shallow level defects in lead tri-halide perovskites. Comparative studies between iodides and other halides showed that deep level defect states were generated for Cl based perovskites. Longer Pb–halide bond lengths and narrower band gaps are beneficial for preventing deep level defect states. Additionally, our study shows that the formation of shallow level defects does not change even when the lattice structures of the perovskites do not reach their equilibrium structures.

Graphical abstract: Understanding of the formation of shallow level defects from the intrinsic defects of lead tri-halide perovskites

Supplementary files

Article information

Article type
Paper
Submitted
29 apr 2016
Accepted
01 sen 2016
First published
02 sen 2016

Phys. Chem. Chem. Phys., 2016,18, 27143-27147

Understanding of the formation of shallow level defects from the intrinsic defects of lead tri-halide perovskites

J. Kim, C. Chung and K. Hong, Phys. Chem. Chem. Phys., 2016, 18, 27143 DOI: 10.1039/C6CP02886A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements