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Journal of Photonics for Energy

High efficiency white organic light emitting diodes employing blue and red platinum emitters
Author(s): Barry P. O’Brien; Gregory Norby; Guijie Li; Jian Li
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Paper Abstract

Platinum-based blue and red emitters were used to make stacked organic light-emitting diodes devices for potential use in solid-state lighting. The electroluminescence (EL) spectra were strongly dependent on the red layer thickness and relative position of the red and blue emissive layers. Although all devices had very little EL in the green region, a color rendering index (CRI) as high as 65 was achieved. Addition of a suitable phosphorescent green emissive layer should produce higher CRI values. All devices tested exhibited external quantum efficiencies greater than 20%, indicating that the Pt-based emitters reported here are potentially useful for solid-state lighting applications.

Paper Details

Date Published: 11 April 2014
PDF: 9 pages
J. Photon. Energy 4(1) 043597 doi: 10.1117/1.JPE.4.043597
Published in: Journal of Photonics for Energy Volume 4, Issue 1
Show Author Affiliations
Barry P. O’Brien, Arizona State Univ. (United States)
Gregory Norby, Arizona State Univ. (United States)
Guijie Li, Arizona State Univ. (United States)
Jian Li, Arizona State Univ. (United States)

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