Amorphous fluorescent organic emitters for efficient solution-processed pure red electroluminescence: synthesis, purification, morphology, solid-state photoluminescence, and device characterizations.
New soluble and intrinsic amorphous red emitters 1 and 2 were obtained by Suzuki coupling. Due to the close molecular polarities, separation of target products from monocoupling impurities presents a challenge. The results showed highly pure 2 would be a potentially valuable fluorophore for solution-processed pure red electroluminescence in terms of visual sensitivity with respect to 1.
Huang
Ju
J
Institute of Polymer Optoelectronic Materials and Devices, Key Laboratory of Special Functional Materials, MOE, South China University of Technology, Guangzhou 510640, China.
Li
Chun
C
Xia
Yang-Jun
YJ
Zhu
Xu-Hui
XH
Peng
Junbiao
J
Cao
Yong
Y