Issue 41, 2019

Understanding the mechanism of metal-induced degradation in perovskite nanocrystals

Abstract

A deeper understanding of the perovskite–metal chemistry is crucial to elucidate the instability problems at the device level that can be caused by such interactions. Here, we study the reactions occurring between CsPbX3 (X = Br, BrI, I) perovskite and metal (M = Ag, Cu, Au) nanocrystals. We demonstrate a fast (<1 hour) optical and structural degradation of the I-containing nanocrystals driven by the formation of metal iodides with reaction kinetics according to the following order Cu < Ag < Au. These results point to the need for thoughtful considerations while constructing optoelectronic devices out of all-inorganic CsPbX3 nanocrystals, where the use of contact metals is a necessity.

Graphical abstract: Understanding the mechanism of metal-induced degradation in perovskite nanocrystals

Supplementary files

Article information

Article type
Paper
Submitted
24 7月 2019
Accepted
25 9月 2019
First published
25 9月 2019

Nanoscale, 2019,11, 19543-19550

Understanding the mechanism of metal-induced degradation in perovskite nanocrystals

S. Saris, V. Niemann, V. Mantella, A. Loiudice and R. Buonsanti, Nanoscale, 2019, 11, 19543 DOI: 10.1039/C9NR06328E

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