A potential red-emitting phosphor for UV-white led and fluorescent lamp

K. U. Kim, S. H. Choi, H. K. Jung, S. Nahm

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

Abstract

Luminescence properties of NaLnGeO4:Eu3+ (Ln=rare earth) phosphors were investigated. It has a strong red emission under mercury discharge and deep blue/near-UV excitations. With the proper atomic ratio of rare earth ions, Y/Gd, and activator concentration, the emission intensity of Eu3+-activated germanate compound is comparable to that of commercial red-emitting phosphor, Y2O3:Eu3+, under 254 nm excitation with the CIE coordinates are x=0.655. y=0.339. Moreover, the maximum emission intensity is about four times higher than that of SrS:Eu3+ under GaN-based blue light excitations (λex=400-465 nm).

Original languageEnglish
Title of host publicationDevelopments in Strategic Materials, Proceedings - A Collection of Papers Presented at the 32nd International Conference on Advanced Ceramics and Composites
Pages279-284
Number of pages6
Edition10
Publication statusPublished - 2009
EventDevelopments in Strategic Materials - 32nd International Conference on Advanced Ceramics and Composites - Daytona Beach, FL, United States
Duration: 2008 Jan 272008 Feb 1

Publication series

NameCeramic Engineering and Science Proceedings
Number10
Volume29
ISSN (Print)0196-6219

Other

OtherDevelopments in Strategic Materials - 32nd International Conference on Advanced Ceramics and Composites
CountryUnited States
CityDaytona Beach, FL
Period08/1/2708/2/1

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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    Kim, K. U., Choi, S. H., Jung, H. K., & Nahm, S. (2009). A potential red-emitting phosphor for UV-white led and fluorescent lamp. In Developments in Strategic Materials, Proceedings - A Collection of Papers Presented at the 32nd International Conference on Advanced Ceramics and Composites (10 ed., pp. 279-284). (Ceramic Engineering and Science Proceedings; Vol. 29, No. 10).