Advanced

Giant Photoluminescence Blinking of Perovskite Nanocrystals Reveals Single-Trap Control of Luminescence.

Tian, Yuxi LU ; Merdasa, Aboma LU ; Peter, Maximilian; Qenawy, Mohamed LU ; Zheng, Kaibo LU ; Ponseca, Carlito LU ; Pullerits, Tönu LU ; Yartsev, Arkady LU ; Sundström, Villy LU and Scheblykin, Ivan LU (2015) In Nano Letters 15(3). p.1603-1608
Abstract
Fluorescence super-resolution microscopy showed correlated fluctuations of photoluminescence intensity and spatial localization of individual perovskite (CH3NH3PbI3) nanocrystals of size ∼200 × 30 × 30 nm(3). The photoluminescence blinking amplitude caused by a single quencher was a hundred thousand times larger than that of a typical dye molecule at the same excitation power density. The quencher is proposed to be a chemical or structural defect that traps free charges leading to nonradiative recombination. These trapping sites can be activated and deactivated by light.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nano Letters
volume
15
issue
3
pages
1603 - 1608
publisher
The American Chemical Society
external identifiers
  • pmid:25706329
  • wos:000351188000024
  • scopus:84924560230
ISSN
1530-6992
DOI
10.1021/nl5041397
language
English
LU publication?
yes
id
b86be2d2-80a8-43bd-af6a-ae8274f144c2 (old id 5143070)
date added to LUP
2015-04-16 13:42:02
date last changed
2017-10-29 03:12:09
@article{b86be2d2-80a8-43bd-af6a-ae8274f144c2,
  abstract     = {Fluorescence super-resolution microscopy showed correlated fluctuations of photoluminescence intensity and spatial localization of individual perovskite (CH3NH3PbI3) nanocrystals of size ∼200 × 30 × 30 nm(3). The photoluminescence blinking amplitude caused by a single quencher was a hundred thousand times larger than that of a typical dye molecule at the same excitation power density. The quencher is proposed to be a chemical or structural defect that traps free charges leading to nonradiative recombination. These trapping sites can be activated and deactivated by light.},
  author       = {Tian, Yuxi and Merdasa, Aboma and Peter, Maximilian and Qenawy, Mohamed and Zheng, Kaibo and Ponseca, Carlito and Pullerits, Tönu and Yartsev, Arkady and Sundström, Villy and Scheblykin, Ivan},
  issn         = {1530-6992},
  language     = {eng},
  number       = {3},
  pages        = {1603--1608},
  publisher    = {The American Chemical Society},
  series       = {Nano Letters},
  title        = {Giant Photoluminescence Blinking of Perovskite Nanocrystals Reveals Single-Trap Control of Luminescence.},
  url          = {http://dx.doi.org/10.1021/nl5041397},
  volume       = {15},
  year         = {2015},
}