Polymer-Oxide Nanolayer/Al Composite Cathode for Efficient Polymer Light-Emitting Diodes.

摘要

This research investigates the function of the polymer-oxide material as the interfacial buffer layer for the fabrication of high performance organic/polymer light-emitting diodes (O/PLEDs). The author proposed to place a salt-free, polymer-oxide nanolayer at the interface between the light-emissive polymer layer with Al as the device cathode instead of using low work function metals, such as Ca or LiF/Al. The processes for preparing the interfacial nanolayer can be easily integrated with the manufacturing procedures for the fabrication of O/PLEDs. The interfacial reaction and the mechanisms of the polymer nanolayer on the enhanced device performance had been well studied. The markedly enhanced device performance is presumed to be the instant formation of a specific carbon-Al complex nanolayer at the cathode interface during the deposition of Al. As a future project, the author has proposed the investigation of the unique organic-oxide nanolayer as the interfacial buffer structure for the fabrication of organic electronic devices.