Suzuki coupling approach for the synthesis of phenylene-pyrimidine alternating oligomers for blue light-emitting material.
[reaction: see text] Conjugated oligomers with an alternating phenylene-pyrimidine structure have been synthesized by the successive Suzuki coupling reaction starting from 2-bromo-5-iodopyrimidine. The photoluminescence properties and quasi-reversible redox behavior of these oligomers make them applicable as an active material for a light-emitting device. Blue light-emitting electroluminescent devices with an external quantum efficiency up to 1.8% have been fabricated.
Wong
Ken-Tsung
KT
Department of Chemistry, National Taiwan University, Taipei 106, Taiwan. kenwong@ccms.ntu.edu.tw
Hung
Tsung Shi
TS
Lin
Yuting
Y
Wu
Chung-Chih
CC
Lee
Gene-Hsiang
GH
Peng
Shie-Ming
SM
Chou
Chung Hsien
CH
Su
Yuhlong Oliver
YO