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Energy Express

Energy Express

  • Editor: Christian Seassal
  • Vol. 20, Iss. S6 — Nov. 5, 2012
  • pp: A977–A983

Photoluminescence of Bi2+-doped BaSO4 as a red phosphor for white LEDs

Renping Cao, Mingying Peng, and Jianrong Qiu  »View Author Affiliations

Optics Express, Vol. 20, Issue S6, pp. A977-A983 (2012)

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Bi2+-doped BaSO4 phosphor was synthesized in air via solid state reaction method. Three excitation bands and one emission band were observed at 260 nm (2P1/22S1/2), 452 nm (2P1/22P3/2(2)), 592 nm (2P1/22P3/2(1)), and 627 nm (2P3/2(1) → 2P1/2), respectively. W-LEDs were demonstrated by using a blend composition of BaSO4:Bi2+ and YAG:Ce3+ phosphors pumped with a 455 nm blue LEDs chip. The results indicate that BaSO4:Bi2+ phosphor is suitable as potential red phosphor for application in W-LEDs excited with blue LEDs chip.

© 2012 OSA

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

ToC Category:
Fluorescent and Luminescent Materials

Original Manuscript: September 11, 2012
Revised Manuscript: October 22, 2012
Manuscript Accepted: October 23, 2012
Published: November 1, 2012

Renping Cao, Mingying Peng, and Jianrong Qiu, "Photoluminescence of Bi2+-doped BaSO4 as a red phosphor for white LEDs," Opt. Express 20, A977-A983 (2012)

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