Semiconducting polymers
Novel Semiconducting photovoltaic polymers with conjugated units that provide improved solar conversion efficiency that can be used in electro-optical and electric devices. The polymers exhibit increased solar conversion efficiency in solar devices.
1. A semiconducting polymer of the formula (IV)
where R is polyfluoralkyl, polychloroalkyl, or an ester;
R′ is alkyl, alkoxy, aryl, aryloxy, heteroaryl, or heteroaryloxy;
X is an integer from 1 to 12; and
m is an integer greater than 0.
2. The semiconducting polymer of claim 1 where
R is C n F 2n+1 and n is an integer from 1 to 12.
3. A device selected from the group consisting of a solar cell, an optical device, an electroluminescent device, a photovoltaic cell, a semiconducting cell, and a photodiode, comprising the polymer of claim 1 .
4. A device selected from the group consisting of a solar cell, an optical device, an electroluminescent device, a photovoltaic cell, a semiconducting cell, a photodiode and a polymeric field effect transistor, comprising a conjugate of the polymer of claim 1 .
5. The semiconducting polymer of claim 1 where R is —COOC n H 2n+1 , and n is an integer from 1 to 30.
6. The semiconducting polymer of claim 1 where R′ is C n H 2n+1 , and n is an integer from 1 to 12.
7. The semiconducting polymer of claim 1 where R is C 6 F 13 .
8. The semiconducting polymer of claim 1 where R′ is C 6 H 13 .
9. The semiconducting polymer of claim 1 where X is 8.
10. The semiconducting polymer of claim 1 where m is an integer from 1 to 20.