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9 results on '"Wallikewitz, Bodo H."'

8. Conjugated Zwitterionic Polyelectrolyte as the Charge Injection Layer for High-Performance Polymer Light-Emitting Diodes.

Author

Junfeng Fang, Wallikewitz, Bodo H., Feng Gao, Guoli Tu, Muller, Christian, Pace, Giuseppina, Friend, Richard H., and Huck, Wilhelm T. S.

Subjects
*POLYELECTROLYTES, *OPTOELECTRONIC device design & construction, *ELECTRONS, *LIGHT emitting diodes, *DIPOLE moments, *CATHODES, *ELECTRIC properties of polymers
Abstract

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. [ABSTRACT FROM AUTHOR]

Published
2011
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9. Conjugated zwitterionic polyelectrolyte as the charge injection layer for high-performance polymer light-emitting diodes.

Author

Fang J, Wallikewitz BH, Gao F, Tu G, Müller C, Pace G, Friend RH, and Huck WT

Abstract

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.

Published
2011
Full Text
View/download PDF

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