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Enhanced organic light-emitting diode based on a columnar liquid crystal by integration in a microresonator

 
: Kasdorf, O.; Vollbrecht, J.; Ohms, B.; Hilleringmann, U.; Bock, H.; Kitzerow, H.S.

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International Journal of Energy Research 38 (2014), No.4, pp.452-458
ISSN: 1099-114X
English
Journal Article
Fraunhofer ENAS ()

Abstract
A study of resonant cavity-enhanced light-emitting diodes based on a columnar liquid crystal was presented in this article. An organic layer made of the electroluminescent liquid crystal was sandwiched between a Bragg mirror deposited on a silicon substrate and a semitransparent top electrode. The fabrication of the substrates was complementary metal oxide semiconductor compatible, the maximum electroluminescence intensity was enhanced by a factor of 3–4, and the spectral width of the emission could be reduced down to 18 nm, thereby improving the chromaticity coordinates, considerably.

: http://publica.fraunhofer.de/documents/N-279194.html