Asian Science Citation Index is committed to provide an authoritative, trusted and significant information by the coverage of the most important and influential journals to meet the needs of the global scientific community.  
ASCI Database
308-Lasani Town,
Sargodha Road,
Faisalabad, Pakistan
Fax: +92-41-8815544
Contact Via Web
Suggest a Journal
Synthetic Metals
Year: 2008  |  Volume: 158  |  Issue: 21-24  |  Page No.: 988 - 992

Enhanced electroluminescent properties of triarylamine-endcapped X-branched oligofluorene

Fan Yang, Xiao Ling Zhang, Kang Sun, Mo Jun Xiong, Ping Fang Xia, Zi Jian Cao and Zi Jian Cao    

Abstract: A facile approach for synthesis of the triarylamine-endcapped X-branched oligofluorene, X-OF(2)Ph-NPh and its corresponding linear oligofluorene, OF(2)Ph-NPh by Suzuki cross-coupling as a key reaction has been developed. This novel X-branched oligofluorene exhibits much higher thermal and electrochemical stabilities and enhanced electroluminescent properties as comparison to its corresponding linear counterpart. Using a simple two-layer OLED structure of ITO/oligofluorene (40 nm)/PBD (40 nm)/LiF (1 nm)/Al (150 nm), the luminance efficiency of X-OF(2)Ph-NPh-based OLED can also reach up to 2.8 cd/A with a maximum brightness of 1700 cd/m2 and remarkably better than 1.2 cd/A with a maximum brightness of 700 cd/m2 for its corresponding linear oligofluorene OF(2)Ph-NPh-based OLEDs.

View Fulltext    |   Related Articles   |   Back
   
 
 
 
  Related Articles

 
 
 
Copyright   |   Desclaimer   |    Privacy Policy   |   Browsers   |   Accessibility