Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 133, Issue 4, Pages 683-685Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja108541z
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Funding
- EPSRC [EP/F056702/1]
- Basic Technology Research Grant Initiative COSMOS [EP/D04894X/1]
- Engineering and Physical Sciences Research Council [EP/F056702/1] Funding Source: researchfish
- EPSRC [EP/F056702/1] Funding Source: UKRI
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A new zwitterionic conjugated polyelectrolyte without free counterions has been used as an electron injection material in polymer light-emitting diodes. Both the efficiency and maximum brightness were considerably improved in comparison with standard Ca cathode devices. The devices showed very fast response times, indicating that the improved performance is, in addition to hole blocking, due to dipoles at the cathode interface, which facilitate electron injection.
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