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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 6 — Mar. 15, 2012
  • pp: 1109–1111

Hybrid light-emitting devices based on phosphorescent platinum(II) complex sensitized CdSe/ZnS quantum dots

Gang Cheng, Wei Lu, Yong Chen, and Chi-Ming Che  »View Author Affiliations


Optics Letters, Vol. 37, Issue 6, pp. 1109-1111 (2012)
http://dx.doi.org/10.1364/OL.37.001109


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Abstract

We report on hybrid light-emitting devices based on the emission of phosphorescent sensitized colloidal CdSe/ZnS quantum dots (QDs). Emission lifetime measurements demonstrated that the energy transfer (ET) from square-planar platinum(II) complex [4-CF3-(N^C^N)PtCCC6H-4-F] (N^CH^N=1, 5-bis(2’-pyridyl)benzene) (Pt-2) to QDs is more efficient than that from octahedral iridium(III) complex bis[(4,6-difluorophenyl)pyridinato-N, C2]-(picolinato)iridium (FIrpic). This different ET efficiency might be attributed to the different spatial structures between Pt-2 and FIrpic. Pure red emission with CIE coordinates of (0.66, 0.33) and maximum external quantum efficiency of 2.08% and white emission with power efficiency of 3.15lm/W were realized at different concentrations of Pt-2 and QDs, respectively.

© 2012 Optical Society of America

OCIS Codes
(230.3670) Optical devices : Light-emitting diodes
(260.2160) Physical optics : Energy transfer
(330.1690) Vision, color, and visual optics : Color
(160.4236) Materials : Nanomaterials

ToC Category:
Materials

History
Original Manuscript: December 26, 2011
Revised Manuscript: January 30, 2012
Manuscript Accepted: January 30, 2012
Published: March 14, 2012

Virtual Issues
Vol. 7, Iss. 5 Virtual Journal for Biomedical Optics

Citation
Gang Cheng, Wei Lu, Yong Chen, and Chi-Ming Che, "Hybrid light-emitting devices based on phosphorescent platinum(II) complex sensitized CdSe/ZnS quantum dots," Opt. Lett. 37, 1109-1111 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-6-1109

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