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Proceedings Paper

Theoretical investigation of the degradation mechanisms in host and guest molecules used in OLED active layers
Author(s): Paul Winget; Minki Hong; Jean-Luc Brédas
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Paper Abstract

A feature of OLEDs that has to date received little attention is the prediction of the stability of the molecules involved in the electrical and optical processes. Here, we present computational results intended to aid in the development of stable systems. We identify degradation pathways and define new strategies to guide the synthesis of stable materials for OLED applications for both phosphorescent emitters and organic host materials. The chemical reactivity of these molecules in the active layers of the devices is further complicated by the fact that, during operation, they can be either oxidized or reduced (as they localize a hole or an electron) in addition to forming both singlet and triplet excitons.

Paper Details

Date Published: 8 October 2014
PDF: 9 pages
Proc. SPIE 9183, Organic Light Emitting Materials and Devices XVIII, 91830J (8 October 2014); doi: 10.1117/12.2062266
Show Author Affiliations
Paul Winget, Georgia Institute of Technology (United States)
Minki Hong, Georgia Institute of Technology (United States)
Jean-Luc Brédas, Georgia Institute of Technology (United States)
King Abdullah Univ. of Science and Technology (Saudi Arabia)

Published in SPIE Proceedings Vol. 9183:
Organic Light Emitting Materials and Devices XVIII
Franky So; Chihaya Adachi, Editor(s)

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