Kinetic analysis on the photoluminescence enhancement of 3-mercaptopropyl trimethoxysilane-modified ZnS: Mn2+ nanocrystal colloidal solution by aging effect

Naoki Sawada, Yasushi Hattori, Tetsuhiko Isobe, Hisamitsu Takahashi, Shigeo Itoh

Research output: Contribution to journalArticle

Abstract

The ZnS:Mn2+ nanocrystal colloidal solution is prepared by the in situ surface modification co-precipitation method in the presence of 3-mercaptopropyl trimethoxysilane (MPS). The increase in the fractional photoluminescence (PL) intensity by the aging of this solution is represented as a first-order reaction. Judging from the small activation energy, we conclude that Mn2+ ions are exchanged with Zn2+ ions at the surface of ZnS nanocrystals during aging to increase the PL intensity.

Original languageEnglish
Pages (from-to)8032-8034
Number of pages3
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume44
Issue number11
DOIs
Publication statusPublished - 2005 Nov 9

Fingerprint

Nanocrystals
Photoluminescence
nanocrystals
Aging of materials
photoluminescence
Kinetics
augmentation
Ions
kinetics
Coprecipitation
Surface treatment
ions
Activation energy
activation energy

Keywords

  • Coprecipitation
  • Kinetic analysis
  • Nanocrystal
  • Photoluminescence
  • ZnS:Mn

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

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abstract = "The ZnS:Mn2+ nanocrystal colloidal solution is prepared by the in situ surface modification co-precipitation method in the presence of 3-mercaptopropyl trimethoxysilane (MPS). The increase in the fractional photoluminescence (PL) intensity by the aging of this solution is represented as a first-order reaction. Judging from the small activation energy, we conclude that Mn2+ ions are exchanged with Zn2+ ions at the surface of ZnS nanocrystals during aging to increase the PL intensity.",
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T1 - Kinetic analysis on the photoluminescence enhancement of 3-mercaptopropyl trimethoxysilane-modified ZnS

T2 - Mn2+ nanocrystal colloidal solution by aging effect

AU - Sawada, Naoki

AU - Hattori, Yasushi

AU - Isobe, Tetsuhiko

AU - Takahashi, Hisamitsu

AU - Itoh, Shigeo

PY - 2005/11/9

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N2 - The ZnS:Mn2+ nanocrystal colloidal solution is prepared by the in situ surface modification co-precipitation method in the presence of 3-mercaptopropyl trimethoxysilane (MPS). The increase in the fractional photoluminescence (PL) intensity by the aging of this solution is represented as a first-order reaction. Judging from the small activation energy, we conclude that Mn2+ ions are exchanged with Zn2+ ions at the surface of ZnS nanocrystals during aging to increase the PL intensity.

AB - The ZnS:Mn2+ nanocrystal colloidal solution is prepared by the in situ surface modification co-precipitation method in the presence of 3-mercaptopropyl trimethoxysilane (MPS). The increase in the fractional photoluminescence (PL) intensity by the aging of this solution is represented as a first-order reaction. Judging from the small activation energy, we conclude that Mn2+ ions are exchanged with Zn2+ ions at the surface of ZnS nanocrystals during aging to increase the PL intensity.

KW - Coprecipitation

KW - Kinetic analysis

KW - Nanocrystal

KW - Photoluminescence

KW - ZnS:Mn

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