Organic photovotaics
View Patent ↗The present disclosure is for improved organic semiconductors and improved organic photovoltaics. Liquid crystalline bent-core molecules in the B4 subphase of the present disclosure may be incorporated into improved organic semiconductors. Liquid crystalline bent-core molecules in the B4 subphase of the present disclosure may be incorporated into improved organic photovoltaics that may have improved quantum efficiencies over pre-existing organic photovoltaics.
1. In an electrical device that incorporates an organic semiconductor material, the improvement comprising:
the organic semiconductor material including an organic crystal made of mesogens in the B4 phase.
2. The device of claim 1 , wherein the organic semiconductor material forms a heterojunction with a second organic material.
3. Then device of claim 1 , wherein the second organic material is a fullerene.
4. The device of claim 1 , wherein the device is an organo photoelectric cell.
5. The device of claim 1 , wherein the device is an organic field effect transistor.
6. The device of claim 1 , wherein the mesogens of the organic crystal include molecules selected from the group consisting of NOBOW molecules and W513 molecules.
7. The device of claim 1 , wherein the mesogens of the organic crystal include comprise a p-type semiconductor.
8. The device of claim 1 , wherein the mesogens of the organic crystal are swelled with a solution containing an acceptor.
9. The device of claim 8 wherein the acceptor comprises a n-type semiconductor.
10. The device of claim 8 wherein the acceptor is a fullerene.
11. The device of claim 9 wherein said bent-core molecules in said liquid crystalline phase comprise a p-type semiconductor and are in contact with said n-type semiconductor, said contact comprising a p-n type heterojunction.
12. The device of claim 1 wherein said bent-core molecules are coated with a solution containing an acceptor.
13. The device of claim 12 wherein the acceptor comprises an n-type semiconductor.
14. The device of claim 12 wherein said acceptor is a fullerene.
15. The device of claim 13 wherein said bent-core molecules comprise a p-type semiconductor and are in contact with said n-type semiconductor, said contact comprising a p-n type heterojunction.
16. The device of claim 1 wherein said bent-core molecules are chemically bound to an acceptor at each first end and at each second end of said bent-core molecules.
17. The device of claim 16 comprising a n-type semiconductor.
18. The device of claim 12 wherein said acceptor is a fullerene.
19. The device of claim 17 wherein said bent-core molecules in said liquid crystalline phase comprise a p-type semiconductor and are in contact with said n-type semiconductor, said contact comprising a p-n type heterojunction.