Non-radiative processes in metal halide perovskite semiconductors probed by photoluminescence microscopy

Aboma Merdasa, Marina Gerhard, Boris Louis, Jun Li, Alexander Dobrovolsky, Yuxi Tian, Johan Hofkens, Rafael Camacho, Eva Unger, Ivan G. Scheblykin

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

Abstract

Organo metal halide perovskites are solution processed semiconductors that recently attracted a great attention. They possess a rather "soft" and (photo) chemically active solid structure allowing for ion migration and other mass diffusion processes. This is a likely reason why non-radiative recombination centres in these materials are activated and deactivated on relatively slow time-scales. This dynamics reveals as photoluminescence (PL) fluctuations (blinking) of individual microcrystals and local areas of films and allows for application of a broad range of single molecule spectroscopy methods including optical super-resolution. Studying PL blinking resolves properties of individual non-radiative centres and helps to unravel their chemical nature.

Original languageEnglish
Title of host publicationXIII International Conference on Hole Burning, Single Molecule, and Related Spectroscopies: Science and Applications (HBSM-2018)
PublisherEDP Sciences
Volume190
DOIs
Publication statusPublished - 2018 Sep 26
Event13th International Conference on Hole Burning, Single Molecule, and Related Spectroscopies: Science and Applications, HBSM 2018 - Moscow, Russian Federation
Duration: 2018 Aug 62018 Aug 12

Publication series

NameEPJ Web of Conferences
PublisherEDP Sciences
ISSN (Print)2101-6275

Conference

Conference13th International Conference on Hole Burning, Single Molecule, and Related Spectroscopies: Science and Applications, HBSM 2018
Country/TerritoryRussian Federation
CityMoscow
Period2018/08/062018/08/12

Subject classification (UKÄ)

  • Condensed Matter Physics
  • Physical Chemistry

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