Premium
46.3: Role of Chemical Transformations of Hole Transport Materials in Operational Degradation of the Current Generation of Highly Efficient Fluorescent OLEDs
Author(s) -
Kondakov Denis Y.,
Young Ralph H.
Publication year - 2009
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 - 10.1889/1.3256877
Subject(s) - degradation (telecommunications) , oled , dopant , fluorescence , materials science , chemical transformation , transformation (genetics) , chemical physics , chemical engineering , optoelectronics , chemistry , nanotechnology , doping , computer science , optics , physics , organic chemistry , telecommunications , biochemistry , layer (electronics) , gene , engineering
Abstract We show that the representative hole transport material NPB undergoes significant chemical transformation in operating highly efficient fluorescent OLEDs. The extent and location of the chemical degradation are qualitatively and quantitatively consistent with the hypothesis of its dominant role in the operational degradation mechanism. Effects of dopant and transport materials are also evaluated.