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Energy Express

  • Editor: Bernard Kippelen
  • Vol. 19, Iss. S4 — Jul. 4, 2011
  • pp: A972–A981

Development of nanophosphors for light emitting diodes

H. Menkara, R. A. Gilstrap, Jr., T. Morris, M. Minkara, B. K. Wagner, and C. J. Summers  »View Author Affiliations


Optics Express, Vol. 19, Issue S4, pp. A972-A981 (2011)
http://dx.doi.org/10.1364/OE.19.00A972


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Abstract

We report the development of new nanophosphor structures based on the Mn-doped ZnSeS material system to enhance the color properties, luminosity and efficiency of white LEDs. These structures have been demonstrated for phosphor-based white LED applications utilizing both blue and UV LED systems. Bandgap tuning for near UV (405 nm) and blue (460 nm) excitations are reported. Using various optimization procedures, we have produced ZnSe:Mn nanoparticles with an external quantum yield greater than 80%.

© 2011 OSA

OCIS Codes
(160.2540) Materials : Fluorescent and luminescent materials
(160.6000) Materials : Semiconductor materials
(230.3670) Optical devices : Light-emitting diodes
(250.5230) Optoelectronics : Photoluminescence
(160.4236) Materials : Nanomaterials
(250.5590) Optoelectronics : Quantum-well, -wire and -dot devices

ToC Category:
Light-Emitting Diodes

History
Original Manuscript: April 28, 2011
Revised Manuscript: June 16, 2011
Manuscript Accepted: June 17, 2011
Published: July 1, 2011

Virtual Issues
Optics in LEDS for Lighting (2011) Optics Express

Citation
H. Menkara, R. A. Gilstrap, T. Morris, M. Minkara, B. K. Wagner, and C. J. Summers, "Development of nanophosphors for light emitting diodes," Opt. Express 19, A972-A981 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-S4-A972


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References

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