Synthesis and electroluminescent properties of soluble poly(3,6-fluorene) and its copolymer.
Soluble poly(3,6-fluorene) and its copolymer were synthesized by nickel-catalyzed coupling. Poly(3,6-fluorene) exhibited the optical band gap of 3.6 eV, the emission maximum at 347 nm, and the HOMO level of -6.05 eV. These results confirm that 3,6-linkage is an effective way to get wide band gap conjugated polymers. Furthermore, its copolymer containing triarylamine moieties emits deep-blue light, which means that the adjustable blue light emission can be obtained from their copolymers via energy transfer.
Mo
Yueqi
Y
Institute of Optoelectronic Materials & Devices, Key Laboratory of Special Functional Materials, South China University of Technology, Guangzhou, 510640, China. moyueqi@263.net
Jiang
Xi
X
Cao
Derong
D