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35.2: Invited Paper : Improving Efficiency Without Compromising Lifetime in Blue Fluorescent OLEDs by ETL Design
Author(s) -
Rothe Carsten,
Wallikewitz Bodo,
Zöllner Mike,
Fadhel Omrane,
Werner Ansgar
Publication year - 2014
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/j.2168-0159.2014.tb00130.x
Subject(s) - oled , fluorescence , materials science , optoelectronics , computer science , nanotechnology , physics , optics , layer (electronics)
Typically, efficiency and lifetime of blue fluorescent OLEDs are intimately linked to each by an inverse trade‐off: long lifetime implies low efficiency and vice versa. Nevertheless, material makers need to work to improve OLED performance continuously. Here we demonstrate blue OLEDs with very long lifetime at still good efficiency, based on new ETL structures.