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

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Abstract

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 m2 and a luminous efficiency of 10.3 cdA 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.

Original languageEnglish
Article number233513
JournalApplied Physics Letters
Volume89
Issue number23
DOIs
Publication statusPublished - 2006 Dec 18

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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