Self-assembled monolayer-modified Ag anode for top-emitting polymer light-emitting diodes

被引:37
作者
Chong, Lai-Wan [1 ]
Lee, Yuh-Lang
Wen, Ten-Chin
Guo, Tzung-Fang
机构
[1] Natl Cheng Kung Univ, Dept Chem Engn, Tainan 701, Taiwan
[2] Natl Cheng Kung Univ, Adv Optoelect Technol Ctr, Tainan 701, Taiwan
[3] Natl Cheng Kung Univ, Inst Electroopt Sci & Engn, Tainan 701, Taiwan
关键词
D O I
10.1063/1.2404589
中图分类号
O59 [应用物理学];
学科分类号
摘要
A self-assembled monolayer (SAM), 4-fluorothiophenol (4-FTP), is employed to modify the Ag anode of a top-emitting polymer light-emitting diode (T-PLED) to enhance the hole injection and the performance of a T-PLED device. The results show that the reflectivity of the Ag anode does not decrease due to the formation of a SAM. A brightness of 68 981 cd/m(2) and a luminous efficiency of 10.3 cd/A have been achieved for the 4-FTP-modified device. The improved performance is attributed to the work function increase of the Ag/4-FTP anode due to the presence of fluorine atoms at the outer surface of the modified anode. (c) 2006 American Institute of Physics.
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页数:3
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