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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 15 — Aug. 1, 2010
  • pp: 2544–2546

Photoluminescence of S r 2 P 2 O 7 : B i 2 + as a red phosphor for additive light generation

Mingying Peng and Lothar Wondraczek  »View Author Affiliations


Optics Letters, Vol. 35, Issue 15, pp. 2544-2546 (2010)
http://dx.doi.org/10.1364/OL.35.002544


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Abstract

We report on photoluminescence of Sr 2 P 2 O 7 : Bi 2 + as a potential red-emitting phosphor for multichromatic light sources. If excited with blue light, photoluminescence of this compound spans the spectral range of about 600 to 760 nm . Static and dynamic spectral data reveal the presence of two distinct emission centers. Based on bond covalency and emission lifetime, luminescence can clearly be assigned to Bi 2 + ions on Sr ( 1 ) and Sr ( 2 ) lattice sites, respectively. Energy transfer is observed from Bi ( 1 ) to Bi ( 2 ) . Transfer efficiency, estimated from the lifetimes of the excited states, increases with increasing dopant concentration.

© 2010 Optical Society of America

OCIS Codes
(160.2540) Materials : Fluorescent and luminescent materials
(160.4670) Materials : Optical materials

ToC Category:
Materials

History
Original Manuscript: April 29, 2010
Revised Manuscript: June 24, 2010
Manuscript Accepted: June 24, 2010
Published: July 21, 2010

Citation
Mingying Peng and Lothar Wondraczek, "Photoluminescence of Sr2P2O7:Bi2+ as a red phosphor for additive light generation," Opt. Lett. 35, 2544-2546 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-15-2544


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