Size-dependent room-temperature luminescence decay from PbS quantum dots

Alexander P. Litvin; Peter S. Parfenov; Elena V. Ushakova; Anatoly V. Fedorov; Mikhail V. Artemyev; Anatoly V. Prudnikau; Sergey A. Cherevkov; Ivan D. Rukhlenko; Alexander V. Baranov

doi:10.1117/12.2001073

Size-dependent room-temperature luminescence decay from PbS quantum dots

Alexander P. Litvin^*
, Peter S. Parfenov
, Elena V. Ushakova
, Anatoly V. Fedorov
, Mikhail V. Artemyev
, Anatoly V. Prudnikau
, Sergey A. Cherevkov
, Ivan D. Rukhlenko
, Alexander V. Baranov

^*Corresponding author for this work

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

13 Citations (Scopus)

Abstract

We study size dependence of kinetic and spectral properties of near-infrared luminescence from PbS quantum dots in colloidal solution. Luminescence lifetimes are found to lie between 250 ns for the largest quantum dots and 2:5 μs for the smallest ones, while the Stoke's shift is found to increase from 4-5 to 300 meV. These results are explained by the presence of the long-living in-gap state, with the size-dependent energy. Analytical modeling shows that the relaxation from this state is dominant in small quantum dots and negligible in large ones. Biexponential luminescence decay with the size-dependent recombination rates is predicted for quantum dots of all sizes. © 2012 SPIE.

Original language	English
Title of host publication	Nanophotonics and Micro/Nano Optics
Editors	Zhiping Zhou, Kazumi Wada
Place of Publication	United States
Publisher	SPIE
ISBN (Print)	9780819493194
DOIs	https://doi.org/10.1117/12.2001073
Publication status	Published - 20 Nov 2012
Externally published	Yes
Event	2012 Photonics Asia - Beijing International Convention Center, Beijing, China Duration: 5 Nov 2012 → 7 Nov 2012 https://spie.org/conferences-and-exhibitions/past-conferences-and-exhibitions/photonics-asia-2012

Publication series

Name	Proceedings of SPIE
Volume	8564
ISSN (Print)	0277-786X

Conference

Conference	2012 Photonics Asia
Place	China
City	Beijing
Period	5/11/12 → 7/11/12
Internet address	https://spie.org/conferences-and-exhibitions/past-conferences-and-exhibitions/photonics-asia-2012

Research Keywords

luminescence
luminescence lifetimes
near-infrared region
Quantum dots
size dependence

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10.1117/12.2001073

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Litvin, A. P., Parfenov, P. S., Ushakova, E. V., Fedorov, A. V., Artemyev, M. V., Prudnikau, A. V., Cherevkov, S. A., Rukhlenko, I. D., & Baranov, A. V. (2012). Size-dependent room-temperature luminescence decay from PbS quantum dots. In Z. Zhou, & K. Wada (Eds.), Nanophotonics and Micro/Nano Optics Article 85641Z (Proceedings of SPIE; Vol. 8564). SPIE. https://doi.org/10.1117/12.2001073

@inproceedings{a57495a6ed364a8c8eb8474c86d2383c,

title = "Size-dependent room-temperature luminescence decay from PbS quantum dots",

abstract = "We study size dependence of kinetic and spectral properties of near-infrared luminescence from PbS quantum dots in colloidal solution. Luminescence lifetimes are found to lie between 250 ns for the largest quantum dots and 2:5 μs for the smallest ones, while the Stoke's shift is found to increase from 4-5 to 300 meV. These results are explained by the presence of the long-living in-gap state, with the size-dependent energy. Analytical modeling shows that the relaxation from this state is dominant in small quantum dots and negligible in large ones. Biexponential luminescence decay with the size-dependent recombination rates is predicted for quantum dots of all sizes. {\textcopyright} 2012 SPIE.",

keywords = "luminescence, luminescence lifetimes, near-infrared region, Quantum dots, size dependence",

author = "Litvin, \{Alexander P.\} and Parfenov, \{Peter S.\} and Ushakova, \{Elena V.\} and Fedorov, \{Anatoly V.\} and Artemyev, \{Mikhail V.\} and Prudnikau, \{Anatoly V.\} and Cherevkov, \{Sergey A.\} and Rukhlenko, \{Ivan D.\} and Baranov, \{Alexander V.\}",

year = "2012",

month = nov,

day = "20",

doi = "10.1117/12.2001073",

language = "English",

isbn = "9780819493194",

series = "Proceedings of SPIE",

publisher = "SPIE",

editor = "Zhiping Zhou and Kazumi Wada",

booktitle = "Nanophotonics and Micro/Nano Optics",

address = "United States",

note = "2012 Photonics Asia ; Conference date: 05-11-2012 Through 07-11-2012",

url = "https://spie.org/conferences-and-exhibitions/past-conferences-and-exhibitions/photonics-asia-2012",

}

Litvin, AP, Parfenov, PS, Ushakova, EV, Fedorov, AV, Artemyev, MV, Prudnikau, AV, Cherevkov, SA, Rukhlenko, ID & Baranov, AV 2012, Size-dependent room-temperature luminescence decay from PbS quantum dots. in Z Zhou & K Wada (eds), Nanophotonics and Micro/Nano Optics., 85641Z, Proceedings of SPIE, vol. 8564, SPIE, United States, 2012 Photonics Asia, Beijing, China, 5/11/12. https://doi.org/10.1117/12.2001073

Size-dependent room-temperature luminescence decay from PbS quantum dots. / Litvin, Alexander P.; Parfenov, Peter S.; Ushakova, Elena V. et al.
Nanophotonics and Micro/Nano Optics. ed. / Zhiping Zhou; Kazumi Wada. United States: SPIE, 2012. 85641Z (Proceedings of SPIE; Vol. 8564).

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - Size-dependent room-temperature luminescence decay from PbS quantum dots

AU - Litvin, Alexander P.

AU - Parfenov, Peter S.

AU - Ushakova, Elena V.

AU - Fedorov, Anatoly V.

AU - Artemyev, Mikhail V.

AU - Prudnikau, Anatoly V.

AU - Cherevkov, Sergey A.

AU - Rukhlenko, Ivan D.

AU - Baranov, Alexander V.

PY - 2012/11/20

Y1 - 2012/11/20

N2 - We study size dependence of kinetic and spectral properties of near-infrared luminescence from PbS quantum dots in colloidal solution. Luminescence lifetimes are found to lie between 250 ns for the largest quantum dots and 2:5 μs for the smallest ones, while the Stoke's shift is found to increase from 4-5 to 300 meV. These results are explained by the presence of the long-living in-gap state, with the size-dependent energy. Analytical modeling shows that the relaxation from this state is dominant in small quantum dots and negligible in large ones. Biexponential luminescence decay with the size-dependent recombination rates is predicted for quantum dots of all sizes. © 2012 SPIE.

AB - We study size dependence of kinetic and spectral properties of near-infrared luminescence from PbS quantum dots in colloidal solution. Luminescence lifetimes are found to lie between 250 ns for the largest quantum dots and 2:5 μs for the smallest ones, while the Stoke's shift is found to increase from 4-5 to 300 meV. These results are explained by the presence of the long-living in-gap state, with the size-dependent energy. Analytical modeling shows that the relaxation from this state is dominant in small quantum dots and negligible in large ones. Biexponential luminescence decay with the size-dependent recombination rates is predicted for quantum dots of all sizes. © 2012 SPIE.

KW - luminescence

KW - luminescence lifetimes

KW - near-infrared region

KW - Quantum dots

KW - size dependence

UR - https://www.scopus.com/pages/publications/84875845026

UR - https://www.scopus.com/pages/publications/84875845026#tab=impact

U2 - 10.1117/12.2001073

DO - 10.1117/12.2001073

M3 - RGC 32 - Refereed conference paper (with host publication)

SN - 9780819493194

T3 - Proceedings of SPIE

BT - Nanophotonics and Micro/Nano Optics

A2 - Zhou, Zhiping

A2 - Wada, Kazumi

PB - SPIE

CY - United States

T2 - 2012 Photonics Asia

Y2 - 5 November 2012 through 7 November 2012

ER -

Size-dependent room-temperature luminescence decay from PbS quantum dots

Abstract

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