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Highly efficient blue light-emitting diodes based on diarylanthracene/triphenylsilane compounds.
MedLine Citation:
PMID:  21780457     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
New host materials have been designed and synthesized, (4-(10-(naphthalen-2-yl)anthracen-9-yl)phenyl)triphenylsilane (ANPTPS) and (9,9-dimethyl-7-(10-(naphthalen-2-yl)anthracen-9-yl)-9H-fluoren-2-yl)triphenylsilane (ANFTPS), and photophysical characteristics investigated to determine suitability as candidates for blue light-emitting materials. To explore the electroluminescent properties, multilayered OLEDs were fabricated with the device structure of ITO/NPB/Host (ANPTPS and ANFTPS): 8% Dopant (PFVtPh and PCVtPh)/Bphen/Liq/Al. By using a host (ANPTPS) and a dopant (PFVtPh) as the emitting layer, high-efficiency blue OLEDs were fabricated with a maximum luminance of 3991 cd/cm2 at 8.0 V, a luminous efficiency of 5.99 cd/A at 20 mA/cm2, a power efficiency of 3.11 lm/W at 20 mA/cm2, an external quantum efficiency of 4.13% at 20 mA/cm2, and CIEx, y coordinates of (x = 0.15, y = 0.18) at 8.0 V.
Authors:
Jeong Keun Park; Kum Hee Lee; Jung Sun Park; Ji Hoon Seo; Young Kwan Kim; Seung Soo Yoon
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of nanoscience and nanotechnology     Volume:  11     ISSN:  1533-4880     ISO Abbreviation:  J Nanosci Nanotechnol     Publication Date:  2011 May 
Date Detail:
Created Date:  2011-07-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101088195     Medline TA:  J Nanosci Nanotechnol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  4357-62     Citation Subset:  IM    
Affiliation:
Department of Chemistry, Sungkyunkwan University, Suwon 440-746, Korea.
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