Performance of a polymer light-emitting diode with enhanced charge carrier mobility
article
The device characteristics of a polymer light-emitting diode (PLED) based on a poly(p-phenylene vinylene) (PPV) derivative with an enhanced charge carrier mobility have been investigated. Improvement of the mobility, which has been obtained by a decrease of the energetic disorder in the polymer, is expected to increase the power efficiency of a PLED. However, it is demonstrated that an increased mobility leads to a decrease as well as to a slower rise of the quantum efficiency with voltage. This performance reduction is explained in terms of an increased quenching of the electroluminescence (EL) at the cathode.
Topics
TNO Identifier
236052
ISSN
03796779
Source
Synthetic Metals, 122(1), pp. 95-98.
Publisher
Elsevier
Collation
4 p.
Place of publication
Amsterdam, The Netherlands
Pages
95-98
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