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56.1: Invited Paper : Excited State Interactions in P‐OLEDs: Implications For Efficiency And Lifetime
Author(s) -
Roberts Matthew,
King Simon,
Cass Michael,
Pintani Martina,
Coward Chris,
Akino Nobuhiko,
Nakajima Hideaki,
Anryu Makoto
Publication year - 2011
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 - 10.1889/1.3621456
Subject(s) - oled , excited state , annihilation , optoelectronics , materials science , degradation (telecommunications) , fluorescence , layer (electronics) , diode , engineering physics , nanotechnology , atomic physics , computer science , physics , telecommunications , optics , quantum mechanics
A fluorescent blue P‐OLED has high densities of triplet excited states within the emissive layer. In this paper we will present an efficiency and degradation analysis of model P‐OLED devices and materials, and demonstrate that control of triplet transfer and annihilation processes are of crucial importance in realising the efficiencies and device stabilities required for commercialisation of the technology.