Polymeric light-emitting diodes utilizing TPD-dispersed polyimide thin film and organometallic complex

Hyuntaek Lim; Hyunjoo Park; Jae-Gyoung Lee; Youngkyoo Kim; Won-Jei Cho; Chang-Sik Ha

doi:10.1117/12.305439

17 April 1998 Polymeric light-emitting diodes utilizing TPD-dispersed polyimide thin film and organometallic complex

Hyuntaek Lim, Hyunjoo Park, Jae-Gyoung Lee, Youngkyoo Kim, Won-Jei Cho, Chang-Sik Ha

Author Affiliations +

Proceedings Volume 3281, Polymer Photonic Devices; (1998) https://doi.org/10.1117/12.305439
Event: Optoelectronics and High-Power Lasers and Applications, 1998, San Jose, CA, United States

Abstract

The polymeric light-emitting diodes (PLEDs) in the present work consist of a double layer organic structure, i.e. ITO/hole transport material (HTM)-dispersed polymer/emitter/cathode. Fully aromatic polyimide, poly(4,4'- oxydiphenylene pyromellitimide) (PMDA-ODA PI), with outstanding thermal stability and high glass transition temperature of 377 degrees Celsius was introduced as a matrix polymer for binding the HTM. N,N'-diphenyl-N,N'-di(m- tolyl)benzidine (TPD) and bis(8-hydroxyquinolinato)zinc(II) (Znq2) were used as a HTM and an emitter, respectively. The turn-on voltage was ca. 7 V. Bright greenish yellow light was observed at 11 V under room light.

Citation Download Citation

Hyuntaek Lim, Hyunjoo Park, Jae-Gyoung Lee, Youngkyoo Kim, Won-Jei Cho, and Chang-Sik Ha "Polymeric light-emitting diodes utilizing TPD-dispersed polyimide thin film and organometallic complex", Proc. SPIE 3281, Polymer Photonic Devices, (17 April 1998); https://doi.org/10.1117/12.305439

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE