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P‐169: Solution‐processed Organic Light‐emitting Diodes with a Polymeric Hole Transport Layer Crosslinked by Surface Initiated Oxidative Crosslinking
Author(s) -
Jeon Sang Kyu,
Lee Jun Yeob
Publication year - 2017
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.12003
Subject(s) - oxidizing agent , materials science , carbazole , oled , luminous efficacy , layer (electronics) , oxidative coupling of methane , quenching (fluorescence) , fabrication , light emitting diode , diode , exciton , optoelectronics , phosphorescence , solution process , chemical engineering , photochemistry , composite material , chemistry , optics , organic chemistry , fluorescence , catalysis , medicine , physics , alternative medicine , pathology , quantum mechanics , engineering
A surface initiated oxidative coupling method of a carbazole compound was used as a fabrication approach of a crosslinked hole transport layer for solution processed organic light‐emitting diodes. The surface initiated oxidative coupling method was able to avoid damage by the organic solvent in the manufacturing process. Moreover, the hole transport material was able to prevent exciton quenching by the oxidizing agent and solved the problem of luminous efficiency reduction of the organic light emitting device because the oxidant was not in contact with the emitting layer. As a result, the surface initiated oxidative crosslinking method improved the luminous efficiency and lifetime characteristics of the solution processed organic light‐emitting devices.