Theoretical investigation of the degradation mechanisms in host and guest molecules used in OLED active layers

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. © (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.

Citation
Paul Winget ; Minki Hong and Jean-Luc Brédas " Theoretical investigation of the degradation mechanisms in host and guest molecules used in OLED active layers ", Proc. SPIE 9183, Organic Light Emitting Materials and Devices XVIII, 91830J (October 8, 2014); doi:10.1117/12.2062266; http://dx.doi.org/10.1117/12.2062266

Publisher
SPIE-Intl Soc Optical Eng

Journal
Organic Light Emitting Materials and Devices XVIII

Conference/Event Name
Organic Light Emitting Materials and Devices XVIII

DOI
10.1117/12.2062266

Additional Links
http://proceedings.spiedigitallibrary.org/proceeding.aspx?doi=10.1117/12.2062266

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