Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.



Surface ligation stage revealed through polarity-dependent fluorescence during perovskite nanocrystal growth

Author affiliations

Abstract

Methylammonium lead iodide perovskite (MAPbI3) nanocrystals (NCs) exhibit favorable photophysics for a range of light emitting applications. A comprehensive mechanistic understanding of the nucleation and growth processes for these NCs is still elusive. Absorbance and fluorescence spectra were measured during a NC synthesis with kinetics limited by precursor solvation using a rapid sampling technique wherein syringe filters quench NC growth. The signal from well-capped NCs in the reaction mixture was isolated by the use of polar syringe filters, enabling spectroscopic observation of the surface ligation process. Our results indicate that the formation of these NCs involves a single stage of nucleation and growth, followed by a terminal surface ligation stage.

Graphical abstract: Surface ligation stage revealed through polarity-dependent fluorescence during perovskite nanocrystal growth

Back to tab navigation

Supplementary files

Article information


Submitted
29 Nov 2019
Accepted
17 Apr 2020
First published
18 Apr 2020

J. Mater. Chem. C, 2020, Advance Article
Article type
Paper

Surface ligation stage revealed through polarity-dependent fluorescence during perovskite nanocrystal growth

J. C. Sadighian, M. L. Crawford, T. W. Suder and C. Y. Wong, J. Mater. Chem. C, 2020, Advance Article , DOI: 10.1039/C9TC06545H

Social activity

Search articles by author

Spotlight

Advertisements