Abstract
We have fabricated thermally stable organic electroluminescent (EL) devices using a hole transporting material, a tetramer of triphenylamine, and a typical emitting material, tris (8-quinolinolato) aluminum (Alq). The organic EL devices show uniform light emission in a continuous operation up to 140 °C without breakdown. A lowering of turn-on voltage for light emission and an increase of luminous efficiency with increasing temperature are found; the significantly low turn-on voltage of 2.1 V and the high luminous efficiency of 1.25 lm/W are obtained at 130 °C. Excellent durability of continuous operation is also achieved at the high temperature.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
