Effects of surface modification on photoluminescence properties of LaPO4: Ce,Tb nano-phosphor synthesized by solvotliernial reaction

F. Nishimura, Tetsuhiko Isobe

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

2 Citations (Scopus)

Abstract

The transparent colloidal solution of LaPO4:Ce,Tb nano-phosphor is synthesized from lanthanum acetate, cerium acetate, terbium acetate and trimethyl phosphate by the solvothermal reaction at 140°C in the mixture of water and methanol. The green photoluminescence (PL) due to the f-f transition of Tb3+ is observed by exciting the d-f transition of Ce 3+, followed by the energy transfer from Ce3+ to Tb 3+. The surface modification of LaPO4:Ce,Tb nano-phosphor powder by lauryl phosphate increases the PL intensity by a factor of 18. The surface modification is effective for LaPO4:Ce, but not for LaPO 4:Tb. These results suggest that the surface-passivation plays a significant role in the suppression of energy loss and the higher site-symmetry around Ce3+.

Original languageEnglish
Title of host publicationIDW/AD'05 - Proceedings of the 12th International Display Workshops in Conjunction with Asia Display 2005
Pages513-516
Number of pages4
Edition1
Publication statusPublished - 2005
EventIDW/AD'05 - 12th International Display Workshops in Conjunction with Asia Display 2005 - Takamatsu, Japan
Duration: 2005 Dec 62005 Dec 9

Other

OtherIDW/AD'05 - 12th International Display Workshops in Conjunction with Asia Display 2005
CountryJapan
CityTakamatsu
Period05/12/605/12/9

Fingerprint

Phosphors
Surface treatment
Photoluminescence
Phosphates
Terbium
Lanthanum
Cerium
Passivation
Energy transfer
Energy dissipation
Methanol
Powders
Water

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Nishimura, F., & Isobe, T. (2005). Effects of surface modification on photoluminescence properties of LaPO4: Ce,Tb nano-phosphor synthesized by solvotliernial reaction. In IDW/AD'05 - Proceedings of the 12th International Display Workshops in Conjunction with Asia Display 2005 (1 ed., pp. 513-516)

Effects of surface modification on photoluminescence properties of LaPO4 : Ce,Tb nano-phosphor synthesized by solvotliernial reaction. / Nishimura, F.; Isobe, Tetsuhiko.

IDW/AD'05 - Proceedings of the 12th International Display Workshops in Conjunction with Asia Display 2005. 1. ed. 2005. p. 513-516.

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

Nishimura, F & Isobe, T 2005, Effects of surface modification on photoluminescence properties of LaPO4: Ce,Tb nano-phosphor synthesized by solvotliernial reaction. in IDW/AD'05 - Proceedings of the 12th International Display Workshops in Conjunction with Asia Display 2005. 1 edn, pp. 513-516, IDW/AD'05 - 12th International Display Workshops in Conjunction with Asia Display 2005, Takamatsu, Japan, 05/12/6.
Nishimura F, Isobe T. Effects of surface modification on photoluminescence properties of LaPO4: Ce,Tb nano-phosphor synthesized by solvotliernial reaction. In IDW/AD'05 - Proceedings of the 12th International Display Workshops in Conjunction with Asia Display 2005. 1 ed. 2005. p. 513-516
Nishimura, F. ; Isobe, Tetsuhiko. / Effects of surface modification on photoluminescence properties of LaPO4 : Ce,Tb nano-phosphor synthesized by solvotliernial reaction. IDW/AD'05 - Proceedings of the 12th International Display Workshops in Conjunction with Asia Display 2005. 1. ed. 2005. pp. 513-516
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