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32.3: Advanced Materials for Printed OLED Displays
Author(s) -
Herron Norman,
Gao Weiying
Publication year - 2010
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 - 10.1889/1.3500494
Subject(s) - oled , materials science , orange (colour) , nozzle , computer science , optoelectronics , process engineering , nanotechnology , mechanical engineering , engineering , optics , layer (electronics) , physics
This paper outlines the device and materials analyses which have led to DuPont's Gen3 solution‐based OLED material set. A combination of architectural optimization and chemical design based on electronic analyses and calculations for these materials leads to dramatic performance gains for printable devices. High‐ efficiency deep red (0.68,0.32) devices deliver >200,000hr (1000nits) at >14cd/A while green materials demonstrate record lifetime >1,000,000hr, or high efficiency (>68cd/A) in solution‐ processed test‐coupons. Deep blue, orange, and yellow emissive systems (the latter pair being useful for lighting applications) likewise exhibit world‐class performance. Furthermore, use of these materials in nozzle‐printed test coupons has verified that the outstanding performance can be maintained under actual print conditions. These proprietary materials now match or exceed the device performance of today's vapor‐deposited equivalents, while enabling lower‐cost printed displays and solution coated lighting applications.