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The influence of ZnO nanorods on the poly-(3,4-ethylenedioxythiophene):poly-(styrenesulphonic acid) buffer layer in a polymer light-emitting diode
The luminescence efficiency of polymer light-emitting diodes is enhanced to more than double by doping ZnO nanorods into the poly-(3,4-ethylenedioxythiophene):poly-(styrenesulphonic acid) (PEDOT:PSS) hole buffer layer. It was demonstrated, by means of the optical and electrical characteristics and R...
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Published in: | Nanotechnology 2005-12, Vol.16 (12), p.2861-2864 |
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Main Authors: | , , , , , , |
Format: | Article |
Language: | English |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | The luminescence efficiency of polymer light-emitting diodes is enhanced to more than double by doping ZnO nanorods into the poly-(3,4-ethylenedioxythiophene):poly-(styrenesulphonic acid) (PEDOT:PSS) hole buffer layer. It was demonstrated, by means of the optical and electrical characteristics and Raman spectroscopy, that there is a certain interaction between the thiophene of PEDOT and the ZnO nanorods, which decreased the amount of defect states at the interface between the PEDOT hole buffer layer and the poly(2-methoxy-5-(2'-ethyl-hexyloxy)1,4-phenylene vinylene) (MEH-PPV) emitting layer and thus increased the device efficiency and stability. |
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ISSN: | 0957-4484 1361-6528 |
DOI: | 10.1088/0957-4484/16/12/021 |