Highly efficient near-infrared hybrid organic-inorganic nanocrystal electroluminescence device
Bourdakos, KN, Dissanayake, DMNM, Lutz, T, Silva, SRP and Curry, RJ (2008) Highly efficient near-infrared hybrid organic-inorganic nanocrystal electroluminescence device APPL PHYS LETT, 92 (15). ISSN 0003-6951
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We report the use of PbS nanocrystals within a hybrid device that emits 1.2 mu m electroluminescence with an external quantum efficiency of 1.15% corresponding to an internal quantum efficiency of similar to 5%-12% thus demonstrating a viable, low-cost, highly efficient near infrared organic electroluminescent device. Direct generation of the excited state on the nanocrystal result in eliminating competing processes that have previously led to the low reported efficiencies in near-infrared light emitting devices. Furthermore, the emission wavelength can be tuned to cover a wide range of wavelengths including the 1.3-1.5 mu m region without significant change of the efficiency. (c) 2008 American Institute of Physics.
Copyright 2008 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
The following article appeared in Applied Physics Letters, 92 (15) 153311 and may be found at K. N. Bourdakos et al., Appl. Phys.Lett. 92, 153311 (2008)
|Uncontrolled Keywords:||LIGHT-EMITTING-DIODES, MU-M|
|Divisions:||Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute > Nano-Electronics Centre|
|Depositing User:||Mr Adam Field|
|Date Deposited:||01 Dec 2011 11:58|
|Last Modified:||09 Jun 2014 13:39|
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