Abstract
Non-doping white organic light-emitting devices (WOLEDs) based on an ultrathin yellow-emitting layer of rubrene inserted between the blue-emitting layer 4,4'-bis(2,2'-diphenylvinyl)-1,1'-biphenyl (DPVBi) and the electron transport layer tris-(8-hydroxyquinoline)aluminum (Alq3) fabricated by combinatorial sliding shutter technique are reported. Three of the sixteen devices made have Commission Internationale de l'Eclairage (CIE) coordinates fairly within the white region at 8 - 16 V, ranging from (0.31, 0.38) to (0.34, 0.42). All three devices had a 5-nm thickness of DPVBi layer and an ultrathin rubrene layer of thickness of 0.05-, 0.10-, and 0.15 nm, respectively. A maximum luminance of 12,900 cd/m2at 17 V and an efficiency of 5.5 cd/A at 8.5 V were obtained in the devices with 0.05 nm rubrene layer. These devices can be fabricated rather easily due to their simple device structure and they are very appealing to low-cost general lighting applications.
Original language | English |
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Article number | 59371W |
Pages (from-to) | 1-8 |
Number of pages | 8 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 5937 |
DOIs | |
Publication status | Published - 1 Dec 2005 |
Externally published | Yes |
Event | Organic Light-Emitting Materials and Devices IX - San Diego, CA, United States Duration: 31 Jul 2005 → 3 Aug 2005 |
Keywords
- Non-doping OLEDs
- OLEDs
- Organic light-emitting devices
- Ultra-thin OLEDs
- White organic light-emitting devices
- WOLEDs
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering