The symmetric squarylium dyes containing arylamine were newly synthesized in a one-step reaction and showed better electrochemical properties.
It was shown that several of our synthesized squarylium dyes had improved electrochemical reversibility and might be a promising and an easy modifiable π-conjugate core block for electroactive and photoactive materials.
This study introduce a novel family of promising candidates of active materials for opto and/or electronic devices which require stable electrochemical properties of the materials, such as organic electroluminescent devices, dye-sensitized solar cells, and secondary batteries. In addition, this family of squarylium dyes can be able to easily extend and tune by modifying secondary amines which are the raw materials of the squarylium dyes in this study.
Dyes and Pigments. Volume 101, February 2014, Pages 261–269.
Yutaka Ohsedo, Misao Miyamoto, Akihiro Tanaka, Hisayuki Watanabe.
Advanced Materials Research Laboratory, Collaborative Research Division, Art, Science and Technology Center for Cooperative Research, Kyushu University, 4-1 Kyudaishinmachi, Nishi-ku, Fukuoka 819-0388, Japan.
We studied the synthesis and electrochemical properties of symmetric squarylium dyes (SQDs) containing diarylamine with various structures. It was shown that several of our synthesized SQDs had improved electrochemical properties and might be a promising and an easy modifiable π-conjugate core block of active materials for electroactive and photoactive devices.