CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 10362 > Article
Open Access Presentation
19 September 2017 Extending the lifetime of blue phosphorescent OLEDs (Conference Presentation)
Stephen R. Forrest
Author Affiliations +
Proceedings Volume 10362, Organic Light Emitting Materials and Devices XXI; 103620M (2017) https://doi.org/10.1117/12.2276252
Event: SPIE Organic Photonics + Electronics, 2017, San Diego, California, United States
Abstract
Since its first demonstration in 1998, electrophosphorescence has yielded 100% internal quantum efficiency OLEDs (PHOLEDs) across the color gamut. This advance has given birth to a huge global OLED display industry, now estimated to be >$15B, or more than 10% of all displays made. While red and green devices have shown extraordinary operational lifetimes, blue PHOLEDs have had unacceptably short lifetimes. In this talk I discuss the fundamental origins of this deficiency1, and approaches to extending the lifetime of blue PHOLEDs. Indeed, recent results in our laboratory have already yielded a 10 fold improvement in lifetime, the first such major improvement in almost a decade2. The understanding gained from these experiments suggest that much longer lifetimes, even for very deep blue emitting PHOLEDs, is possible. In particular, I will discuss the use of hot excited state managers as a means to greatly extend the lifetime of blues for both displays and lighting. 1. N. C. Giebink, B. W. D’Andrade, M. S. Weaver, P. B. Mackenzie, J. J. Brown, M. E. Thompson and S. R. Forrest, J. Appl. Phys. 103, 044509 (2008). 2. Y. Zhang, J. Lee and S. R. Forrest, Nature Commun. 5, 5008 (2014).
Conference Presentation
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Stephen R. Forrest "Extending the lifetime of blue phosphorescent OLEDs (Conference Presentation)", Proc. SPIE 10362, Organic Light Emitting Materials and Devices XXI, 103620M (19 September 2017); https://doi.org/10.1117/12.2276252
PROCEEDINGS
 PRESENTATION
WATCH
PRESENTATION SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
KEYWORDS
Phosphorescent organic light-emitting diodes
Organic light emitting diodes
Yield improvement
Blue light emitting diodes
Internal quantum efficiency
Light emitting diodes
Light sources and illumination
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top