Efficient Green Coumarin Dopants for Organic Light-Emitting Devices
- 16 March 2004
- journal article
- letter
- Published by American Chemical Society (ACS) in Organic Letters
- Vol. 6 (8) , 1241-1244
- https://doi.org/10.1021/ol049903d
Abstract
We have synthesized a new green fluorescent dopant C-545P having incorporated five strategically placed “methyl” steric spacers on the julolidyl ring system. C-545P has good thermal properties and photostability, and when fabricated as a dopant in an Alq3-hosted OLED device, it shows notable improvement in luminance efficiency and is more resistant to concentration quenching than C-545T, particularly in the doping concentration range between 1 and 2% v/v, while achieving comparable device stability.Keywords
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