Journal of Guangdong University of Technology ›› 2004, Vol. 21 ›› Issue (2): 12-15.

• Comprehensive Studies • Previous Articles     Next Articles

Impact of the Cathode Materials on the Performance of Polymer Light-emitting Devices

  

  1. (Dept. of Applied Physics,Guangdong University of Technology,Guangzhou 510520,China)
  • Online:2004-06-03 Published:2004-06-03

HTML

0

PDF (PC)

2286

Abstract: Double-layer polymer light-emitting devices (PLEDs),based on poly(9,9-dioctylfluoren-4,7-di-2-thienyl-2,1,3-benzothiadiazole)(PDOF-DBT,m(DOF):m(DBF)=85:15),using alkaline metals, alkaline earth metals and insulated materials as the cathode,show different characteristics. Device with Ba(a thickness of about 3nm) as cathode shows better performance:the external quantum efficiency is 1.6%, and the highest light intensity is close to 4000cd/m~2.The result demonstrates the interface between PDOF-DBT and this kind cathode with good energetic contact, and electron-injecting equilibrium.

Key words: polyfluorene； PLEDs； cathode； double layer；

[1] Tang C W,VanSlyke S A.Organic electroluminescent diodes. Applied Physics . 1987

[2] Tokuhisa H,Era M,Tsutsui T,et al.Electron drift mobility of oxidiazole derivatives doped in polycarbonate. Applied Physics . 1995

[3] Hung L S,Tang C W,Mason M G.Enhanced electron injection in organic electroluminescence devices using an Al LiF electrode. Applied Physics . 1997

[4] Huang M B,McDonald K,Keay J C,et al.Suppression of penetration of aluminum into 8-hydroxyquinoline aluminum via a thine oxide barriers. Applied Physics . 1998

[5] Park Y,Choong V,Gao Y,et al.Work function of indium tio oxide transparent conductor measured by potoelectron spectroscopy. Applied Physics . 1996

[6] Parker I D.Carrier tunneling and device characteristics in polymer light-emitting diodes. Journal of Applied Physics . 1994

[7] Schlaf R,Parkinson B A,Lee P A,et al.Photoemission spectroscopy of LiF coated Al and Pt electrodes. Journal of Applied Physics . 1998

[8] Hou Q,Xu Y S,Yang W,et al.Novel red-emitting fluorine-based copolymers. Journal of Materials . 2002

[9] Cao Y,Yu G,Parker I D,et al.Ultrathin layer alkaline earth metals as stable electron-injecting electrodes for polymer light emitting diodes. Journal of Applied Physics . 2000

[1] 彭俊彪,许怡赦,侯琼,牛于华,曹镛,阮文英.  芴与二噻基苯并噻二唑共聚物的电致发光和光致发光研究[J]. 科学通报. 2002(16)
No related articles found!
Viewed
Full text
1859
HTML PDF
Just accepted Online first Issue Just accepted Online first Issue
0 0 0 0 0 1859

  From Others local
  Times 386 1473
  Rate 21% 79%

Abstract
266
Just accepted Online first Issue
0 0 266
  From Others local
  Times 51 215
  Rate 19% 81%

Cited
Web of Science  Crossref   ScienceDirect  Search for Citations in Google Scholar >>
 
This page requires you have already subscribed to WoS.
  Shared   
  Discussed   
No Suggested Reading articles found!
Copyright © 2017 Journal of Guangdong University of Technology
Add：729 East Dongfeng RD., Guangzhou PRC. Postcode: 510090
Tel：020-37626653,020-37626139,020-37626396
Email：xbzrb@gdut.edu.cn
Supported:Beijing Magtech