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Red Emission of Eu(III) Complex Based on 1-(7-(tert-butyl)-9-ethyl-9H-carbazol-2-yl)-4,4,4-trifluorobutane-1,3-dione Excited by Blue Light
- Source :
- Chinese Journal of Chemical Physics; December 2012, Vol. 25 Issue: 6 p697-702, 6p
- Publication Year :
- 2012
-
Abstract
- A new Eu(III) complex, EuL3(phen), was synthesized, where L is the abbreviation of deprotonated 1-(7-(tert-butyl)-9-ethyl-9H-carbazol-2-yl)-4,4,4-trifluorobutane-1,3-dione(HL), phen is the abbreviation of 1,10-phenanthroline. The Eu(III) complex was characterized by element analysis, IR, 1H NMR, UV-visible absorption spectroscopy, thermogravimetric analysis (TGA), and photoluminescence measurements (PL). TGA shows that thermal stability of the complex is up to 325 °C. PL measurement indicates that the Eu(III) complex exhibits intense red-emission and extends their excitation bands to visible region. LEDs device was successfully fabricated by precoating complex EuL3(phen) onto 460 nm blue-emitting InGaN chip. The emission of device shows that the complex can act as red phosphor in combination with 460 nm blue-emitting chips. This europium complex based on 1-(7-(tert-butyl)-9-ethyl-9H-carbazol-2-yl)-4,4,4-trifluorobutane-1,3-dione is a kind of interesting red-emitting material excited by blue light, which could avoid the damage of excitation by UV light.
Details
- Language :
- English
- ISSN :
- 16740068
- Volume :
- 25
- Issue :
- 6
- Database :
- Supplemental Index
- Journal :
- Chinese Journal of Chemical Physics
- Publication Type :
- Periodical
- Accession number :
- ejs54986329
- Full Text :
- https://doi.org/10.1088/1674-0068/25/06/697-702