Synthesis and photoelectric properties of poly (2,7-9,9-dioctyl-fluorene-co-4,6-2,1,3-benzothiadiazole)
DU Jun-ping
SU Ji-gong
XUE Li-kun
WANG Guo-hao
FANG Shao-ming
Abstract：Poly(2,7-9,9-dioctyl-fluorene-co-4,6-2,1,3-benzothiadiazole)(46BTF8)was synthesized by Suzuki condensation polymerization,and its structure was characterized with 1 H NMR.The photoelectric properties of the polymer were researched by UV-vis spectra,photoluminescence spectra and cyclic voltam-metry.The results showed that compared with its structural analogues poly(2,7-9,9-dioctyl-fluorene-co-4, 7-2,1,3-benzo-thiadiazole)(F8BT),the maximum UV absorption and photoluminescenece wavelengths of 46BTF8 in the film state shifted to blue about 82 nm and 43 nm,respectively.The electrochemical redox behavior of the polymer suggested that this polymer material had excellent electrochemical stability and re-versibility,the electrochemical redox curve was similar while the electrochemical bandwidth increased by 0.2 eV and optical bandwidth increased by 0.36 eV.Those implied that the optoelectrical properties of the polymer could be tuned effectively by changing the linking position of benzothiadiazole unit while keeping their excellent electrochemical stability and reversibility.
Keywords：46BTF8the linking position of benzothiadiazole unitphotoelectric property
Publication Date：2015-10-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 1-6 )