Issue 45, 2019

Formation of a photoactive quasi-2D formamidinium lead iodide perovskite in water

Abstract

There has been no report on the synthesis of fluorescent α-phase stabilized quasi-2D FAPbI3 [FA = CH(NH2)2] perovskite nanocrystals (NCs) in water. We report the top–down synthesis of fluorescent quasi-two dimensional (2D) α-FAPbI3 NCs in aqueous media by controlling the electronic states of lead and the NCs size of FAPbI3. The product was stable in ambient conditions for more than six months. We explored a detailed synthetic study, their emissive properties and phase stabilization mechanism corroborated by density functional theory (DFT) calculations. Single particle imaging and photoluminescence (PL) study of α-FAPbI3 NCs bear the signature of dual emission, which indicates the formation of self-trapped excited states. Our findings will pave the way to develop phase-stabilized hybrid perovskite NCs in water, beneficial for optoelectronic devices.

Graphical abstract: Formation of a photoactive quasi-2D formamidinium lead iodide perovskite in water

Supplementary files

Article information

Article type
Communication
Submitted
01 Sep 2019
Accepted
21 Oct 2019
First published
21 Oct 2019

J. Mater. Chem. A, 2019,7, 25785-25790

Formation of a photoactive quasi-2D formamidinium lead iodide perovskite in water

A. Jana, Q. Ba, A. S. Nissimagoudar and K. S. Kim, J. Mater. Chem. A, 2019, 7, 25785 DOI: 10.1039/C9TA09631K

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