Dependence of the luminescence properties of submicron silica particles on manufacturing conditions

Akira Harao, Seiichiro Inai, Hiroaki Sato, Hiroyuki Nishikawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We investigated luminescence properties of submicron-sized silica particles prepared by Stöber method under different conditions. After annealing in a non-oxidizing atmosphere, the submicron-sized silica particles show a broad photoluminescence (PL) band at 500 nm ranging from visible to ultraviolet wavelength by excitation at 250 nm, and the one at 600 nm by excitation at 488 nm. The particle diameters were controlled by the ethanol contents or temperatures during synthesis. With decreasing particle diameters, the PL band appears by shorter annealing time. The PL was enhanced by the removal of impurities and subsequent formation of luminescent structures by the thermal annealing.

Original languageEnglish
Title of host publicationProceedings of the International Symposium on Electrical Insulating Materials
Pages672-675
Number of pages4
Volume3
Publication statusPublished - 2005
Event2005 International Symposium on Electrical Insulating Materials, ISEIM 2005 - Kitakyushu
Duration: 2005 Jun 52005 Jun 9

Other

Other2005 International Symposium on Electrical Insulating Materials, ISEIM 2005
CityKitakyushu
Period05/6/505/6/9

Fingerprint

Silicon Dioxide
Luminescence
Photoluminescence
Silica
Annealing
Ethanol
Impurities
Wavelength
Temperature
Hot Temperature

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)

Cite this

Harao, A., Inai, S., Sato, H., & Nishikawa, H. (2005). Dependence of the luminescence properties of submicron silica particles on manufacturing conditions. In Proceedings of the International Symposium on Electrical Insulating Materials (Vol. 3, pp. 672-675)

Dependence of the luminescence properties of submicron silica particles on manufacturing conditions. / Harao, Akira; Inai, Seiichiro; Sato, Hiroaki; Nishikawa, Hiroyuki.

Proceedings of the International Symposium on Electrical Insulating Materials. Vol. 3 2005. p. 672-675.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Harao, A, Inai, S, Sato, H & Nishikawa, H 2005, Dependence of the luminescence properties of submicron silica particles on manufacturing conditions. in Proceedings of the International Symposium on Electrical Insulating Materials. vol. 3, pp. 672-675, 2005 International Symposium on Electrical Insulating Materials, ISEIM 2005, Kitakyushu, 05/6/5.
Harao A, Inai S, Sato H, Nishikawa H. Dependence of the luminescence properties of submicron silica particles on manufacturing conditions. In Proceedings of the International Symposium on Electrical Insulating Materials. Vol. 3. 2005. p. 672-675
Harao, Akira ; Inai, Seiichiro ; Sato, Hiroaki ; Nishikawa, Hiroyuki. / Dependence of the luminescence properties of submicron silica particles on manufacturing conditions. Proceedings of the International Symposium on Electrical Insulating Materials. Vol. 3 2005. pp. 672-675
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