Anomalies in the Linear Absorption, Transient Absorption, Photoluminescence and Photoluminescence Excitation Spectroscopies of Colloidal InP Quantum Dots

Garry Rumbles; Donald C. Selmarten; Randy J. Ellingson; Jeffrey L. Blackburn; Pingrong Yu; Barton B. Smith; Olga I. Mićić; Arthur J. Nozik

doi:10.1016/S1010-6030(01)00513-5

Anomalies in the Linear Absorption, Transient Absorption, Photoluminescence and Photoluminescence Excitation Spectroscopies of Colloidal InP Quantum Dots

Garry Rumbles, Donald C. Selmarten, Randy J. Ellingson, Jeffrey L. Blackburn, Pingrong Yu, Barton B. Smith, Olga I. Mićić, Arthur J. Nozik

National Renewable Energy Laboratory

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26 Scopus Citations

Abstract

We report photoluminescence (PL), linear absorption and femtosecond, transient bleaching spectra for a colloidal solution of indium phosphide (InP) quantum dots (QDs) at ambient temperature. The PL quantum yield is shown to depend significantly upon the excitation wavelength and the PL excitation spectrum deviates markedly from the absorption spectrum. The cooling of electrons and holes to the lowest energy excited state is determined, by transient bleaching spectroscopy, to occur with an efficiency that is independent of the excitation wavelength. These results are discussed in terms of a threshold for a non-radiative decay process that resides above the bandgap and a PL quantum yield that depends upon the size of QD.

Original language	American English
Pages (from-to)	187-195
Number of pages	9
Journal	Journal of Photochemistry and Photobiology A: Chemistry
Volume	142
Issue number	2-3
DOIs	https://doi.org/10.1016/S1010-6030(01)00513-5 https://doi.org/10.1016/S1010-6030(01)00513-5
State	Published - 2001

NREL Publication Number

NREL/JA-590-31523

Keywords

InP quantum dots
Linear absorption
Photoluminescence
Transient absorption

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Rumbles, G., Selmarten, D. C., Ellingson, R. J., Blackburn, J. L., Yu, P., Smith, B. B., Mićić, O. I., & Nozik, A. J. (2001). Anomalies in the Linear Absorption, Transient Absorption, Photoluminescence and Photoluminescence Excitation Spectroscopies of Colloidal InP Quantum Dots. Journal of Photochemistry and Photobiology A: Chemistry, 142(2-3), 187-195. https://doi.org/10.1016/S1010-6030(01)00513-5, https://doi.org/10.1016/S1010-6030(01)00513-5

@article{361a903aa913479da4a368714cfcfc3c,

title = "Anomalies in the Linear Absorption, Transient Absorption, Photoluminescence and Photoluminescence Excitation Spectroscopies of Colloidal InP Quantum Dots",

abstract = "We report photoluminescence (PL), linear absorption and femtosecond, transient bleaching spectra for a colloidal solution of indium phosphide (InP) quantum dots (QDs) at ambient temperature. The PL quantum yield is shown to depend significantly upon the excitation wavelength and the PL excitation spectrum deviates markedly from the absorption spectrum. The cooling of electrons and holes to the lowest energy excited state is determined, by transient bleaching spectroscopy, to occur with an efficiency that is independent of the excitation wavelength. These results are discussed in terms of a threshold for a non-radiative decay process that resides above the bandgap and a PL quantum yield that depends upon the size of QD.",

keywords = "InP quantum dots, Linear absorption, Photoluminescence, Transient absorption",

author = "Garry Rumbles and Selmarten, {Donald C.} and Ellingson, {Randy J.} and Blackburn, {Jeffrey L.} and Pingrong Yu and Smith, {Barton B.} and Mi{\'c}i{\'c}, {Olga I.} and Nozik, {Arthur J.}",

year = "2001",

doi = "10.1016/S1010-6030(01)00513-5",

language = "American English",

volume = "142",

pages = "187--195",

journal = "Journal of Photochemistry and Photobiology A: Chemistry",

issn = "1010-6030",

publisher = "Elsevier B.V.",

number = "2-3",

}

Rumbles, G, Selmarten, DC, Ellingson, RJ, Blackburn, JL, Yu, P, Smith, BB, Mićić, OI & Nozik, AJ 2001, 'Anomalies in the Linear Absorption, Transient Absorption, Photoluminescence and Photoluminescence Excitation Spectroscopies of Colloidal InP Quantum Dots', Journal of Photochemistry and Photobiology A: Chemistry, vol. 142, no. 2-3, pp. 187-195. https://doi.org/10.1016/S1010-6030(01)00513-5, https://doi.org/10.1016/S1010-6030(01)00513-5

Anomalies in the Linear Absorption, Transient Absorption, Photoluminescence and Photoluminescence Excitation Spectroscopies of Colloidal InP Quantum Dots. / Rumbles, Garry; Selmarten, Donald C.; Ellingson, Randy J. et al.
In: Journal of Photochemistry and Photobiology A: Chemistry, Vol. 142, No. 2-3, 2001, p. 187-195.

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

TY - JOUR

T1 - Anomalies in the Linear Absorption, Transient Absorption, Photoluminescence and Photoluminescence Excitation Spectroscopies of Colloidal InP Quantum Dots

AU - Rumbles, Garry

AU - Selmarten, Donald C.

AU - Ellingson, Randy J.

AU - Blackburn, Jeffrey L.

AU - Yu, Pingrong

AU - Smith, Barton B.

AU - Mićić, Olga I.

AU - Nozik, Arthur J.

PY - 2001

Y1 - 2001

N2 - We report photoluminescence (PL), linear absorption and femtosecond, transient bleaching spectra for a colloidal solution of indium phosphide (InP) quantum dots (QDs) at ambient temperature. The PL quantum yield is shown to depend significantly upon the excitation wavelength and the PL excitation spectrum deviates markedly from the absorption spectrum. The cooling of electrons and holes to the lowest energy excited state is determined, by transient bleaching spectroscopy, to occur with an efficiency that is independent of the excitation wavelength. These results are discussed in terms of a threshold for a non-radiative decay process that resides above the bandgap and a PL quantum yield that depends upon the size of QD.

AB - We report photoluminescence (PL), linear absorption and femtosecond, transient bleaching spectra for a colloidal solution of indium phosphide (InP) quantum dots (QDs) at ambient temperature. The PL quantum yield is shown to depend significantly upon the excitation wavelength and the PL excitation spectrum deviates markedly from the absorption spectrum. The cooling of electrons and holes to the lowest energy excited state is determined, by transient bleaching spectroscopy, to occur with an efficiency that is independent of the excitation wavelength. These results are discussed in terms of a threshold for a non-radiative decay process that resides above the bandgap and a PL quantum yield that depends upon the size of QD.

KW - InP quantum dots

KW - Linear absorption

KW - Photoluminescence

KW - Transient absorption

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DO - 10.1016/S1010-6030(01)00513-5

M3 - Article

AN - SCOPUS:0001233232

SN - 1010-6030

VL - 142

SP - 187

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JO - Journal of Photochemistry and Photobiology A: Chemistry

JF - Journal of Photochemistry and Photobiology A: Chemistry

IS - 2-3

ER -

Rumbles G, Selmarten DC, Ellingson RJ, Blackburn JL, Yu P, Smith BB et al. Anomalies in the Linear Absorption, Transient Absorption, Photoluminescence and Photoluminescence Excitation Spectroscopies of Colloidal InP Quantum Dots. Journal of Photochemistry and Photobiology A: Chemistry. 2001;142(2-3):187-195. doi: 10.1016/S1010-6030(01)00513-5, 10.1016/S1010-6030(01)00513-5

Anomalies in the Linear Absorption, Transient Absorption, Photoluminescence and Photoluminescence Excitation Spectroscopies of Colloidal InP Quantum Dots

Abstract

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Keywords

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