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Enhanced organic light‐emitting diode based on a columnar liquid crystal by integration in a microresonator
Author(s) -
Kasdorf Olga,
Vollbrecht Joachim,
Ohms Benjamin,
Hilleringmann Ulrich,
Bock Harald,
Kitzerow HeinzS.
Publication year - 2013
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.3127
Subject(s) - electroluminescence , chromaticity , materials science , optoelectronics , liquid crystal , substrate (aquarium) , light emitting diode , diode , electrode , optics , silicon , layer (electronics) , fabrication , oled , crystal (programming language) , light intensity , nanotechnology , chemistry , physics , medicine , oceanography , alternative medicine , pathology , geology , computer science , programming language
SUMMARY 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. Copyright © 2013 John Wiley & Sons, Ltd.