Development of organic field-effect properties by introducing aryl-acetylene into benzodithiophene
Ethynylene-containing benzo[1,2-b:4,5-b′]dithiophene derivatives 1a-c (BPEBDT, BTEBDT and BHPEBDT) were designed and synthesized. Their physicochemical properties were studied by absorption spectra and electrochemistry. 1a-c displayed high field-effect tr