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

Forskningsoutput: Kapitel i bok/rapport/Conference proceedingKonferenspaper i proceedingPeer review

Sammanfattning

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.

Originalspråkengelska
Titel på värdpublikationXIII International Conference on Hole Burning, Single Molecule, and Related Spectroscopies: Science and Applications (HBSM-2018)
FörlagEDP Sciences
Volym190
DOI
StatusPublished - 2018 sep. 26
Evenemang13th International Conference on Hole Burning, Single Molecule, and Related Spectroscopies: Science and Applications, HBSM 2018 - Moscow, Ryssland
Varaktighet: 2018 aug. 62018 aug. 12

Publikationsserier

NamnEPJ Web of Conferences
FörlagEDP Sciences
ISSN (tryckt)2101-6275

Konferens

Konferens13th International Conference on Hole Burning, Single Molecule, and Related Spectroscopies: Science and Applications, HBSM 2018
Land/TerritoriumRyssland
OrtMoscow
Period2018/08/062018/08/12

Ämnesklassifikation (UKÄ)

  • Den kondenserade materiens fysik
  • Fysikalisk kemi

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