A Dual-Emission Phosphor LiCaBO[sub 3]:Ce[sup 3+],Mn[sup 2+] with Energy Transfer for Near-UV LEDs
- 1 January 2011
- journal article
- Published by The Electrochemical Society in Journal of the Electrochemical Society
- Vol. 158 (2), J42-J46
- https://doi.org/10.1149/1.3526319
Abstract
A series of Ce3+Ce3+ and Mn2+Mn2+ co-doped LiCaBO3LiCaBO3 single composition phosphors were synthesized by a solid-state reaction method, and their luminescent properties had also been investigated. Ce3+Ce3+ and Mn2+Mn2+ co-doped LiCaBO3LiCaBO3 phosphors showed a blue and orange dual emission under the near-UV light excitation within the wavelength range of 325–375nm325–375nm , resulting from the 5d-4f5d-4f transitions of Ce3+Ce3+ and the d-dd-d forbidden transition of Mn2+Mn2+ , respectively. The energy transfer from Ce3+Ce3+ to Mn2+Mn2+ was investigated and demonstrated to be a resonance-type via a dipole-dipole mechanism with the critical distance of about 4.1Å4.1Å . The photoluminescence intensity ratio of blue and orange emission could be tuned by adjusting the concentration of Ce3+Ce3+ and Mn2+Mn2+ . The potential applications of these dual-emitting phosphors are the alternative blue and orange-emitting light emitting diode (LED) conversion phosphors due to their strong excitation bands in the wavelength range of 325–375nm325–375nm .Keywords
This publication has 30 references indexed in Scilit:
- Luminescence and Energy Transfer Mechanism in Ca[sub 10]K(PO[sub 4])[sub 7]:Eu[sup 2+], Mn[sup 2+] PhosphorJournal of the Electrochemical Society, 2009
- White-Emitting Phosphor Ca[sub 2]BO[sub 3]Cl:Ce[sup 3+], Eu[sup 2+] for UV Light-Emitting DiodesJournal of the Electrochemical Society, 2009
- Ca[sub 2]Al[sub 2]SiO[sub 7]:Ce[sup 3+], Tb[sup 3+]: A White-Light Phosphor Suitable for White-Light-Emitting DiodesJournal of the Electrochemical Society, 2009
- Red-Emitting LiLa[sub 2]O[sub 2]BO[sub 3]:Sm[sup 3+],Eu[sup 3+] Phosphor for Near-Ultraviolet Light-Emitting Diodes-Based Solid-State LightingJournal of the Electrochemical Society, 2008
- White Light–Generation Phosphor Ba[sub 2]Ca(BO[sub 3])[sub 2]:Ce[sup 3+], Mn[sup 2+] for Light-Emitting DiodesJournal of the Electrochemical Society, 2008
- Research challenges to ultra‐efficient inorganic solid‐state lightingLaser & Photonics Reviews, 2007
- Coactivation of α-Sr(PO3)2 and SrM(P2O7) (M = Zn, Sr) with Eu2+ and Mn2+Chemistry of Materials, 2007
- Solid-State Light Sources Getting SmartScience, 2005
- Spectroscopic Evaluation of a White Light Phosphor for UV-LEDs—Ca[sub 2]NaMg[sub 2]V[sub 3]O[sub 12]:Eu[sup 3+]Journal of the Electrochemical Society, 2005
- Warm-white-light emitting diode utilizing a single-phase full-color Ba3MgSi2O8:Eu2+, Mn2+ phosphorApplied Physics Letters, 2004