Fluorescence of CdSe/ZnS quantum dots in toluene：effect of cyclic temperature

Ying Chen; Weiling Luan; Shaofu Zhang; Fuqian Yang

doi:10.1016/j.egypro.2019.01.535

Fluorescence of CdSe/ZnS quantum dots in toluene：effect of cyclic temperature

Ying Chen
, Weiling Luan
, Shaofu Zhang
, Fuqian Yang

Producción científica: Conference article › revisión exhaustiva

1 Cita (Scopus)

Resumen

Quantum dots (QDs) are the potential material for the application in optical thermometry, and have been successfully applied to solar cells, LEDs, bio-labeling, structural health monitoring, etc. In this paper, we study the fluorescence properties of CdSe/ZnS QDs in toluene under the action of heating-cooling cycles. The experimental results show that, in a heating-cooling cycle, increasing temperature causes red-shift of the emission peak and the decrease of the PL intensity, and decreasing temperature causes blue-shift of the emission peak and the increase of the PL intensity. The surface structures of the QDs likely are dependent on the cycle numbers, which cause the change of the excited energy state of the QDs in toluene. The results presented in this paper reveals the strong effects of cyclic temperature on the photoluminescence characteristics of QDs.

Idioma original	English
Páginas (desde-hasta)	5895-5900
Número de páginas	6
Publicación	Energy Procedia
Volumen	158
DOI	https://doi.org/10.1016/j.egypro.2019.01.535
Estado	Published - 2019
Evento	10th International Conference on Applied Energy, ICAE 2018 - Hong Kong, China Duración: ago 22 2018 → ago 25 2018

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Publisher Copyright:
© 2019 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of ICAE2018 - The 10th International Conference on Applied Energy.

ASJC Scopus subject areas

General Energy

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@article{54fae3e70d0044fd9a11ac8e602e4fcd,

title = "Fluorescence of CdSe/ZnS quantum dots in toluene：effect of cyclic temperature",

abstract = "Quantum dots (QDs) are the potential material for the application in optical thermometry, and have been successfully applied to solar cells, LEDs, bio-labeling, structural health monitoring, etc. In this paper, we study the fluorescence properties of CdSe/ZnS QDs in toluene under the action of heating-cooling cycles. The experimental results show that, in a heating-cooling cycle, increasing temperature causes red-shift of the emission peak and the decrease of the PL intensity, and decreasing temperature causes blue-shift of the emission peak and the increase of the PL intensity. The surface structures of the QDs likely are dependent on the cycle numbers, which cause the change of the excited energy state of the QDs in toluene. The results presented in this paper reveals the strong effects of cyclic temperature on the photoluminescence characteristics of QDs.",

keywords = "Heating-cooling, Photoluminescence, QDs, Toluene",

author = "Ying Chen and Weiling Luan and Shaofu Zhang and Fuqian Yang",

note = "Publisher Copyright: {\textcopyright} 2019 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of ICAE2018 - The 10th International Conference on Applied Energy.; 10th International Conference on Applied Energy, ICAE 2018 ; Conference date: 22-08-2018 Through 25-08-2018",

year = "2019",

doi = "10.1016/j.egypro.2019.01.535",

language = "English",

volume = "158",

pages = "5895--5900",

}

TY - JOUR

T1 - Fluorescence of CdSe/ZnS quantum dots in toluene：effect of cyclic temperature

AU - Chen, Ying

AU - Luan, Weiling

AU - Zhang, Shaofu

AU - Yang, Fuqian

N1 - Publisher Copyright: © 2019 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of ICAE2018 - The 10th International Conference on Applied Energy.

PY - 2019

Y1 - 2019

N2 - Quantum dots (QDs) are the potential material for the application in optical thermometry, and have been successfully applied to solar cells, LEDs, bio-labeling, structural health monitoring, etc. In this paper, we study the fluorescence properties of CdSe/ZnS QDs in toluene under the action of heating-cooling cycles. The experimental results show that, in a heating-cooling cycle, increasing temperature causes red-shift of the emission peak and the decrease of the PL intensity, and decreasing temperature causes blue-shift of the emission peak and the increase of the PL intensity. The surface structures of the QDs likely are dependent on the cycle numbers, which cause the change of the excited energy state of the QDs in toluene. The results presented in this paper reveals the strong effects of cyclic temperature on the photoluminescence characteristics of QDs.

AB - Quantum dots (QDs) are the potential material for the application in optical thermometry, and have been successfully applied to solar cells, LEDs, bio-labeling, structural health monitoring, etc. In this paper, we study the fluorescence properties of CdSe/ZnS QDs in toluene under the action of heating-cooling cycles. The experimental results show that, in a heating-cooling cycle, increasing temperature causes red-shift of the emission peak and the decrease of the PL intensity, and decreasing temperature causes blue-shift of the emission peak and the increase of the PL intensity. The surface structures of the QDs likely are dependent on the cycle numbers, which cause the change of the excited energy state of the QDs in toluene. The results presented in this paper reveals the strong effects of cyclic temperature on the photoluminescence characteristics of QDs.

KW - Heating-cooling

KW - Photoluminescence

KW - QDs

KW - Toluene

UR - https://www.scopus.com/pages/publications/85063901907

UR - https://www.scopus.com/pages/publications/85063901907#tab=citedBy

U2 - 10.1016/j.egypro.2019.01.535

DO - 10.1016/j.egypro.2019.01.535

M3 - Conference article

AN - SCOPUS:85063901907

SN - 1876-6102

VL - 158

SP - 5895

EP - 5900

JO - Energy Procedia

JF - Energy Procedia

T2 - 10th International Conference on Applied Energy, ICAE 2018

Y2 - 22 August 2018 through 25 August 2018

ER -

Fluorescence of CdSe/ZnS quantum dots in toluene：effect of cyclic temperature

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