Giant photoluminescence blinking of perovskite nanocrystals reveals single-trap control of luminescence

Yuxi Tian; Aboma Merdasa; Maximilian Peter; Mohamed Abdellah; Kaibo Zheng; Carlito S. Ponseca; Tõnu Pullerits; Arkady Yartsev; Villy Sundström; Ivan G. Scheblykin

doi:10.1021/nl5041397

Giant photoluminescence blinking of perovskite nanocrystals reveals single-trap control of luminescence

Yuxi Tian, Aboma Merdasa, Maximilian Peter, Mohamed Abdellah, Kaibo Zheng, Carlito S. Ponseca, Tõnu Pullerits, Arkady Yartsev, Villy Sundström, Ivan G. Scheblykin

Research output: Contribution to journal › Article › peer-review

181 Citations (Scopus)

Abstract

Fluorescence super-resolution microscopy showed correlated fluctuations of photoluminescence intensity and spatial localization of individual perovskite (CH₃NH₃PbI₃) nanocrystals of size ∼200 × 30 × 30 nm³. 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.

Original language	English
Pages (from-to)	1603-1608
Number of pages	6
Journal	Nano Letters
Volume	15
Issue number	3
DOIs	https://doi.org/10.1021/nl5041397
Publication status	Published - Mar 11 2015
Externally published	Yes

Keywords

blinking
charge trapping
Perovskite
photoluminescence
single molecule spectroscopy
super-resolution microscopy

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

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10.1021/nl5041397

Cite this

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abstract = "Fluorescence super-resolution microscopy showed correlated fluctuations of photoluminescence intensity and spatial localization of individual perovskite (CH3NH3PbI3) nanocrystals of size ∼200 × 30 × 30 nm3. 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.",

keywords = "blinking, charge trapping, Perovskite, photoluminescence, single molecule spectroscopy, super-resolution microscopy",

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T1 - Giant photoluminescence blinking of perovskite nanocrystals reveals single-trap control of luminescence

AU - Tian, Yuxi

AU - Merdasa, Aboma

AU - Peter, Maximilian

AU - Abdellah, Mohamed

AU - Zheng, Kaibo

AU - Ponseca, Carlito S.

AU - Pullerits, Tõnu

AU - Yartsev, Arkady

AU - Sundström, Villy

AU - Scheblykin, Ivan G.

PY - 2015/3/11

Y1 - 2015/3/11

N2 - Fluorescence super-resolution microscopy showed correlated fluctuations of photoluminescence intensity and spatial localization of individual perovskite (CH3NH3PbI3) nanocrystals of size ∼200 × 30 × 30 nm3. 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.

AB - Fluorescence super-resolution microscopy showed correlated fluctuations of photoluminescence intensity and spatial localization of individual perovskite (CH3NH3PbI3) nanocrystals of size ∼200 × 30 × 30 nm3. 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.

KW - blinking

KW - charge trapping

KW - Perovskite

KW - photoluminescence

KW - single molecule spectroscopy

KW - super-resolution microscopy

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Giant photoluminescence blinking of perovskite nanocrystals reveals single-trap control of luminescence

Abstract

Keywords

ASJC Scopus subject areas

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