Poly(2,3-dihexylthieno(3,4-b)pyrazine). A New Processable Low Band-Gap Polyheterocycle
TEXAS UNIV AT ARLINGTON CENTER FOR ADVANCED POLYMER RESEARCH
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A new soluble, low band-gap polymer, poly2,3-dihexylthieno3,4-B pyrazine, which is dark blue-black in the neutral state and which becomes transparent light yellow when doped has been prepared and studied. The preparation involves a multistep synthesis which involves condensation of 3,4- diaminothiophene with 7,8-tetradecanedione to produce 2,3-dihexylthieno3,4-B pyrazine which is polymerized with ferric chloride. Poly2,3-dihexylthieno3,4-B pyrazine has a doped film conductivity of 3.6 x 10-2 S cm-1 and a band-gap film of ca. 0.95 eV making it one of the lowest band-gap polymers prepared to date. Poly2,3-dihexylthieno3,4-B pyrazine, Low Band-Gap, Conducting polymer, Processable.
- Physical Chemistry
- Polymer Chemistry
- Electricity and Magnetism