Highly efficient organic light emitting devices with combination of fluorescent and phosphorescent materials for color tunable diode fabricated by all-wet process

Yutaka Ohmori; Yuichi Hino; Hirotake Kajii

doi:10.1117/12.608578

7 July 2005 Highly efficient organic light emitting devices with combination of fluorescent and phosphorescent materials for color tunable diode fabricated by all-wet process

Yutaka Ohmori, Yuichi Hino, Hirotake Kajii

Author Affiliations +

Proceedings Volume 5840, Photonic Materials, Devices, and Applications; (2005) https://doi.org/10.1117/12.608578
Event: Microtechnologies for the New Millennium 2005, 2005, Sevilla, Spain

Abstract

Efficient polymer based organic light emitting devices (PLEDs) are fabricated by spin coating method. The emitting layer consists of polymer host and phosphor dopant. The energy transfer and charge carrier trapping of poly(9,9-dioctylfluorene) (PFO)-based PLEDs doped with red emissive phosphor tris(1-phenylisoquinoline) iridium (III) [Ir(piq)3] by applying the voltage pulse on devices has been discussed. The emission from the host has been observed under a short pulse of 100 ns was applied. In order to change the electroluminescent (EL) spectrum, PFO-based white-light-emitting PLEDs have been demonstrated utilizing the different pulse width and frequency. The maximum luminance of 4,800 cd/m² and the Commission Internationale de L'Eclairage (CIE) coordinates of the ideal white light (0.33, 0.35) at the pulse width and frequency of 100 ns and 1 kHz, respectively, were obtained.

Citation Download Citation

Yutaka Ohmori, Yuichi Hino, and Hirotake Kajii "Highly efficient organic light emitting devices with combination of fluorescent and phosphorescent materials for color tunable diode fabricated by all-wet process", Proc. SPIE 5840, Photonic Materials, Devices, and Applications, (7 July 2005); https://doi.org/10.1117/12.608578

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

Includes PDF, HTML & Video, when available