Recent Advances in White Organic Light-Emitting Materials and Devices (WOLEDs)

• Published in: Advanced materials (Weinheim) Vol. 22; no. 5; pp. 572 - 582
• Main Authors: Kamtekar, Kiran T., Monkman, Andrew P., Bryce, Martin R.
• Format: Journal Article
• Language: English
• Published: Weinheim WILEY-VCH Verlag 02.02.2010; WILEY‐VCH Verlag
• Subjects: Light; Optics and Photonics - instrumentation; Organic Chemicals - chemistry; Polymers - chemistry; white organic light-emitting devices; white organic light-emitting materials
• ISSN: 0935-9648; 1521-4095
• DOI: 10.1002/adma.200902148

WOLEDs offer new design opportunities in practical solid‐state lighting and could play a significant role in reducing global energy consumption. Obtaining white light from organic LEDs is a considerable challenge. Alongside the development of new materials with improved color stability and balanced charge transport properties, major issues involve the fabrication of large‐area devices and the development of low‐cost manufacturing technology. This Review will describe the types of materials (small molecules and polymers) that have been used to fabricate WOLEDs. A range of device architectures are presented and appraised. White organic light‐emitting devices (WOLEDs) offer new design opportunities in practical solid‐state lighting and could play a significant role in reducing global energy consumption. Obtaining white light from organic LEDs is a considerable challenge. Alongside the development of new materials with improved color stability and balanced charge transport properties, major issues involve the fabrication of large‐area devices and the development of low‐cost manufacturing technology.