Share Email Print
cover

Proceedings Paper

White light-emitting organic electroluminescent device based on a new orange organometallic iridium complexes
Author(s): Tien-shou Shieh; Heh-lung Huang; Pey-ching Liu; Mei-Rurng Tseng; Jia-Ming Liu
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We develop the white organic light-emitting diodes (WOLEDs) with a new orange electrophosphorescent emission, and the blue electrofluorescent or electrophosphorescent sensitizer. The new orange phosphorescent sensitizer is the thieno-pyridine framework organo-iridium complexes (PO-01). The blue phosphorsensitized electrofluorescent is 4,4'-Bis(9-ethyl-3-carbazovinylene)-1,1'- biphenyl (DSA) doped into 4,4'-Bis(2,2-diphenyl-ethen-1-yl) diphenyl (DPVBi). Beside, the blue phosphorescent sensitizer is Bis(3,5-difluoro-2-(2-pyridyl)phenyl- (2-carboxypyridyl)iridium (FirPic). The Device Type I of WOLED based on the PO-01 and the DSA doped into DPVBi has an efficiency of 5.7 lm/W (10.6Cd/A) at 500 Cd/m2, a CIE coordinates of (0.33, 0.31), and a CRI of 71. However, the Device Type II of WOLED has an efficiency of 5.5 lm/W (10.3Cd/A) at 500 Cd/m2 and a CIE coordinates of (0.30, 0.42), while the FirPic replaces the DPVBi doped with DSA. The spectra of the Device Type II and I both response insensitive to drive current. Nevertheless, the Device Type I relatively achieves a balanced whit emission with CIE coordinates of (0.33, 0.33). They are good suitability to use in OLED lighting and full-color LCD backlights.

Paper Details

Date Published: 19 November 2007
PDF: 7 pages
Proc. SPIE 6655, Organic Light Emitting Materials and Devices XI, 66551G (19 November 2007); doi: 10.1117/12.730429
Show Author Affiliations
Tien-shou Shieh, Industrial Technology Research Institute (Taiwan)
Heh-lung Huang, Industrial Technology Research Institute (Taiwan)
Pey-ching Liu, Industrial Technology Research Institute (Taiwan)
Mei-Rurng Tseng, Industrial Technology Research Institute (Taiwan)
Jia-Ming Liu, Industrial Technology Research Institute (Taiwan)


Published in SPIE Proceedings Vol. 6655:
Organic Light Emitting Materials and Devices XI
Zakya H. Kafafi; Franky So, Editor(s)

© SPIE. Terms of Use
Back to Top