Influence of excitation wavelength on photoluminescence properties of CdSe/CdZnS colloidal quantum dots on micro-patterned silver films

Rizwan Khan; Ju Won Jeon; Lee Woon Jang; Min Kyu Kim; Eun Yee Ko; Joo In Lee; In Hwan Lee

doi:10.1007/s13391-013-3134-y

Influence of excitation wavelength on photoluminescence properties of CdSe/CdZnS colloidal quantum dots on micro-patterned silver films

Rizwan Khan, Ju Won Jeon, Lee Woon Jang, Min Kyu Kim, Eun Yee Ko, Joo In Lee, In Hwan Lee

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

2 Citations (Scopus)

Abstract

We examined the excitation wavelength dependence of photoluminescence (PL) property in CdSe/CdZnS colloidal quantum dots (QDs) on micro-patterned silver (Ag) films (MPSFs). PL quenching of the fluorophore was observed when the excitation wavelength was out of the absorption range of MPSF substrates. In contrast, when the excitation wavelength was within the absorption spectrum range, the PL intensity on Ag films was markedly enhanced by a factor of two. It was expected that the principal causes on the PL properties of the fluorophore on Ag films would be the energy match between the incident light and the surface plasmon of Ag metal films.

Original language	English
Pages (from-to)	451-455
Number of pages	5
Journal	Electronic Materials Letters
Volume	10
Issue number	2
DOIs	https://doi.org/10.1007/s13391-013-3134-y
Publication status	Published - 2014 Mar
Externally published	Yes

Keywords

CdSe/CdZnS
colloidal quantum dot
photoluminescence
silver film
surface plasmon

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials

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10.1007/s13391-013-3134-y

Cite this

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title = "Influence of excitation wavelength on photoluminescence properties of CdSe/CdZnS colloidal quantum dots on micro-patterned silver films",

abstract = "We examined the excitation wavelength dependence of photoluminescence (PL) property in CdSe/CdZnS colloidal quantum dots (QDs) on micro-patterned silver (Ag) films (MPSFs). PL quenching of the fluorophore was observed when the excitation wavelength was out of the absorption range of MPSF substrates. In contrast, when the excitation wavelength was within the absorption spectrum range, the PL intensity on Ag films was markedly enhanced by a factor of two. It was expected that the principal causes on the PL properties of the fluorophore on Ag films would be the energy match between the incident light and the surface plasmon of Ag metal films.",

keywords = "CdSe/CdZnS, colloidal quantum dot, photoluminescence, silver film, surface plasmon",

author = "Rizwan Khan and Jeon, {Ju Won} and Jang, {Lee Woon} and Kim, {Min Kyu} and Ko, {Eun Yee} and Lee, {Joo In} and Lee, {In Hwan}",

year = "2014",

month = mar,

doi = "10.1007/s13391-013-3134-y",

language = "English",

volume = "10",

pages = "451--455",

journal = "Electronic Materials Letters",

issn = "1738-8090",

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T1 - Influence of excitation wavelength on photoluminescence properties of CdSe/CdZnS colloidal quantum dots on micro-patterned silver films

AU - Khan, Rizwan

AU - Jeon, Ju Won

AU - Jang, Lee Woon

AU - Kim, Min Kyu

AU - Ko, Eun Yee

AU - Lee, Joo In

AU - Lee, In Hwan

PY - 2014/3

Y1 - 2014/3

N2 - We examined the excitation wavelength dependence of photoluminescence (PL) property in CdSe/CdZnS colloidal quantum dots (QDs) on micro-patterned silver (Ag) films (MPSFs). PL quenching of the fluorophore was observed when the excitation wavelength was out of the absorption range of MPSF substrates. In contrast, when the excitation wavelength was within the absorption spectrum range, the PL intensity on Ag films was markedly enhanced by a factor of two. It was expected that the principal causes on the PL properties of the fluorophore on Ag films would be the energy match between the incident light and the surface plasmon of Ag metal films.

AB - We examined the excitation wavelength dependence of photoluminescence (PL) property in CdSe/CdZnS colloidal quantum dots (QDs) on micro-patterned silver (Ag) films (MPSFs). PL quenching of the fluorophore was observed when the excitation wavelength was out of the absorption range of MPSF substrates. In contrast, when the excitation wavelength was within the absorption spectrum range, the PL intensity on Ag films was markedly enhanced by a factor of two. It was expected that the principal causes on the PL properties of the fluorophore on Ag films would be the energy match between the incident light and the surface plasmon of Ag metal films.

KW - CdSe/CdZnS

KW - colloidal quantum dot

KW - photoluminescence

KW - silver film

KW - surface plasmon

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DO - 10.1007/s13391-013-3134-y

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JO - Electronic Materials Letters

JF - Electronic Materials Letters

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Influence of excitation wavelength on photoluminescence properties of CdSe/CdZnS colloidal quantum dots on micro-patterned silver films

Abstract

Keywords

ASJC Scopus subject areas

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