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Please use this identifier to cite or link to this item: http://dspace.lib.cranfield.ac.uk/handle/1826/1422

Document Type: Article
Title: Fabrication and characterization of red-emitting electroluminescent devices based on thiol-stabilized semiconductor nanocrystals
Authors: Bertoni, Cristina
Gallardo, D. E.
Dunn, Steve
Gaponik, Nikolai
Eychmüller, Alexander
Issue Date: 2007
Citation: Cristina Bertoni, Diego Gallardo, Steve Dunn, Nikolai Gaponik and Alexander Eychmüller; Fabrication and characterization of red-emitting electroluminescent devices based on thiol-stabilized semiconductor nanocrystals, Applied Physics Letters, 2007, Vol 90, Issue 3, 034107
Abstract: Thiol-capped CdTe nanocrystals were used to fabricate light-emitting diodes, consisting of an emissive nanocrystal multilayer deposited via layer-by-layer, sandwiched between indium-tin-oxide and aluminum electrodes. The emissive and electrical properties of devices with different numbers of nanocrystal layers were studied. The improved structural homogeneity of the nanocrystal multilayer allowed for stable and repeatable current- and electroluminescence-voltage characteristics. These indicate that both current and electroluminescence are electric-field dependent. Devices were operated under ambient conditions and a clear red-light was detected. The best-performing device shows a peak external efficiency of 0.51% and was measured at 0.35mA/cm2 and 3.3V.
URI: http://dx.doi.org/10.1063/1.2433030
http://dspace.lib.cranfield.ac.uk/handle/1826/1422
Appears in Collections:Staff publications - School of Applied Sciences

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