Intensity-and size-dependent relaxation in PbS quantum dots in glass

A. M. Malyarevich; V. G. Savitski; K. V. Yumashev; H. Raaben; A. A. Zhilin

doi:10.1142/9789812701947_0019

Intensity-and size-dependent relaxation in PbS quantum dots in glass

A. M. Malyarevich, V. G. Savitski, K. V. Yumashev, H. Raaben, A. A. Zhilin

Institute Of Photonics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

Abstract

Bleaching relaxation in PbS quantum dots of various sizes under different pump intensities has been studied. The observed bleaching relaxation features are explained in the context of the proposed spectroscopic model. The model takes into account transitions of excited charge carriers both in the system of quantum-confined energy levels and defect trap states of the dots. Characteristic times of direct electron-hole recombination, carriers trapping to defect states as well as cross-sections of "ground-state" and "excited-state" absorption of carriers can be evaluated from the experimental data using this model.

Original language	English
Title of host publication	Physics, Chemistry and Application of Nanostructures - Reviews and Short Notes to NANOMEETING 2005
Publisher	World Scientific Publishing Co. Pte Ltd
Pages	104-107
Number of pages	4
ISBN (Print)	9812562885, 9789812562883
DOIs	https://doi.org/10.1142/9789812701947_0019
Publication status	Published - 1 Dec 2005
Event	International Conference on Physics, Chemistry and Applications of Nanostructures Physics, NANOMEETING 2005 - Minsk, Belarus Duration: 24 May 2005 → 27 May 2005

Conference

Conference	International Conference on Physics, Chemistry and Applications of Nanostructures Physics, NANOMEETING 2005
Country/Territory	Belarus
City	Minsk
Period	24/05/05 → 27/05/05

Keywords

bleaching relaxation
defect states
nanostructures
quantum theory
semiconducting lead compounds
semiconductor quantum dots

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10.1142/9789812701947_0019

Cite this

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title = "Intensity-and size-dependent relaxation in PbS quantum dots in glass",

abstract = "Bleaching relaxation in PbS quantum dots of various sizes under different pump intensities has been studied. The observed bleaching relaxation features are explained in the context of the proposed spectroscopic model. The model takes into account transitions of excited charge carriers both in the system of quantum-confined energy levels and defect trap states of the dots. Characteristic times of direct electron-hole recombination, carriers trapping to defect states as well as cross-sections of {"}ground-state{"} and {"}excited-state{"} absorption of carriers can be evaluated from the experimental data using this model.",

keywords = "bleaching relaxation, defect states, nanostructures, quantum theory, semiconducting lead compounds, semiconductor quantum dots",

author = "Malyarevich, {A. M.} and Savitski, {V. G.} and Yumashev, {K. V.} and H. Raaben and Zhilin, {A. A.}",

year = "2005",

month = dec,

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doi = "10.1142/9789812701947_0019",

language = "English",

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publisher = "World Scientific Publishing Co. Pte Ltd",

address = "Singapore",

note = "International Conference on Physics, Chemistry and Applications of Nanostructures Physics, NANOMEETING 2005 ; Conference date: 24-05-2005 Through 27-05-2005",

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Malyarevich, AM, Savitski, VG, Yumashev, KV, Raaben, H & Zhilin, AA 2005, Intensity-and size-dependent relaxation in PbS quantum dots in glass. in Physics, Chemistry and Application of Nanostructures - Reviews and Short Notes to NANOMEETING 2005. World Scientific Publishing Co. Pte Ltd, pp. 104-107, International Conference on Physics, Chemistry and Applications of Nanostructures Physics, NANOMEETING 2005, Minsk, Belarus, 24/05/05. https://doi.org/10.1142/9789812701947_0019

Intensity-and size-dependent relaxation in PbS quantum dots in glass. / Malyarevich, A. M.; Savitski, V. G.; Yumashev, K. V. et al.
Physics, Chemistry and Application of Nanostructures - Reviews and Short Notes to NANOMEETING 2005. World Scientific Publishing Co. Pte Ltd, 2005. p. 104-107.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

TY - GEN

T1 - Intensity-and size-dependent relaxation in PbS quantum dots in glass

AU - Malyarevich, A. M.

AU - Savitski, V. G.

AU - Yumashev, K. V.

AU - Raaben, H.

AU - Zhilin, A. A.

PY - 2005/12/1

Y1 - 2005/12/1

N2 - Bleaching relaxation in PbS quantum dots of various sizes under different pump intensities has been studied. The observed bleaching relaxation features are explained in the context of the proposed spectroscopic model. The model takes into account transitions of excited charge carriers both in the system of quantum-confined energy levels and defect trap states of the dots. Characteristic times of direct electron-hole recombination, carriers trapping to defect states as well as cross-sections of "ground-state" and "excited-state" absorption of carriers can be evaluated from the experimental data using this model.

AB - Bleaching relaxation in PbS quantum dots of various sizes under different pump intensities has been studied. The observed bleaching relaxation features are explained in the context of the proposed spectroscopic model. The model takes into account transitions of excited charge carriers both in the system of quantum-confined energy levels and defect trap states of the dots. Characteristic times of direct electron-hole recombination, carriers trapping to defect states as well as cross-sections of "ground-state" and "excited-state" absorption of carriers can be evaluated from the experimental data using this model.

KW - bleaching relaxation

KW - defect states

KW - nanostructures

KW - quantum theory

KW - semiconducting lead compounds

KW - semiconductor quantum dots

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M3 - Conference contribution book

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SN - 9789812562883

SP - 104

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BT - Physics, Chemistry and Application of Nanostructures - Reviews and Short Notes to NANOMEETING 2005

PB - World Scientific Publishing Co. Pte Ltd

T2 - International Conference on Physics, Chemistry and Applications of Nanostructures Physics, NANOMEETING 2005

Y2 - 24 May 2005 through 27 May 2005

ER -

Intensity-and size-dependent relaxation in PbS quantum dots in glass

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Keywords

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