title: Cross-linked conjugated polymers for achieving patterned three-color and blue polymer light-emitting diodes with multi-layer structures.
abstract: Reactions between the ethylene groups in the backbone of conjugated polymers under UV illumination and heat treatment result in the cross-linking of the main polymer chains. The cross-linking leads to two simultaneous results in the polymer: excellent solvent resistance and increased bandgap. Using this reaction, three-color polymer light-emitting diodes (PLEDs) with a multi-layer structure can be easily realized by a dry photo-pattern in an active-gas-free environment. Multi-layer blue devices with dramatically enhanced efficiency can also be achieved conveniently.
authors.affiliation: Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China; Present address: Jiangsu Key Lab for Organic Electronics & Information Displays and Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications 9 Wenyuan Road, Nanjing 210046, China. iamxydeng@njupt.edu.cn.
authors.forename: Xianyu
authors.initials: X
authors.lastname: Deng
authors.forename: King Young
authors.initials: KY
authors.lastname: Wong