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

F. Nishimura, T. Isobe

研究成果: Paper査読

2 被引用数 (Scopus)

抄録

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+.

本文言語English
ページ513-516
ページ数4
出版ステータスPublished - 2005 12 1
イベントIDW/AD'05 - 12th International Display Workshops in Conjunction with Asia Display 2005 - Takamatsu, Japan
継続期間: 2005 12 62005 12 9

Other

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

ASJC Scopus subject areas

  • 工学(全般)

フィンガープリント

「Effects of surface modification on photoluminescence properties of LaPO<sub>4</sub>:Ce,Tb nano-phosphor synthesized by solvotliernial reaction」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル