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31.5: Invited Paper: Solution Processable Materials for Printed OLED Displays
Author(s) -
Yang Xi,
Hu Jie,
Tan Jiahui,
Pan Junyou
Publication year - 2019
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.13488
Subject(s) - oled , materials science , layer (electronics) , optoelectronics , nanotechnology
Ink‐jet printing is the most promising manufacture technology for large area OLED displays owning to its high materials utilization and low manufacturing cost. However, the performance of solution processed OLED devices (especially the life span) is still far below the evaporated ones, which is mainly due to the lack of high performance soluble OLED materials. The traditional strategies to increase solubility of organic functional molecules usually decrease their functionalities, such as emissive efficiency and device stability. Here we demonstrate a rational strategy to improve the stability of solution processed OLED devices by introducing novel organic emissive materials and optimization of the materials system in the emissive layer.