Furan and selenophene derivatized benzo [1,2-b:4,5-b′] dithiophene-thienothiophene based conjugated polymers for high-efficiency organic solar cells

US9691986B2 · kind B2 · utility

Assignees

• SOLARMER ENERGY, INC. · US
• Phillips 66 Company · US

Inventors

• Wei Wang · Dublin, US
• Chenjun Shi · El Monte, US
• Ruby Chen · El Monte, US
• Jun Yang · Tai'an City, CN
• Yue Wu · Beijing, CN
• Hui Huang · Longbeilingcun, CN
• Kathy Woody · Bartlesville, US
• Joe Bullock · Bartlesville, US
• Amit Palkar · Bartlesville, US
• Ting He · Dublin, US

Key dates

• Filing date: Nov 19, 2013
• Grant date: Jun 27, 2017
• Expiry date: Nov 19, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/549

Abstract

Compositions, synthesis and applications for furan, thiophene and selenophene derivatized benzo[1,2-b:3,4-b′]dithiophene(BDT)-thienothiophene (BDT-TT) based polymers, namely, poly[(4,8-bis(5-(2-ethyhexyl)selenophen-2-yl)-benzo[1,2-b;4,5-b′]dithiophene)-2,6-diyl-alt-(4-(2-ethylhexanoyl)-3-fluorothieno[3,4-b]thiophene)-2-6-diyl (CS-15), poly[(4,8-bis(5-(2-ethyhexyl)selenophen-2-yl)-benzo[1,2-b;4,5-b′]dithiophene)-2,6-diyl-alt-(4-(2-ethylhexyl)-3-fluorothieno[3,4-b]thiophene)-2-carboxylate-2-6-diyl (CS-16), poly[(4,8-bis(5-(2-ethyhexyl)furan-2-yl)-benzo[1,2-b;4,5-b′]dithiophene)-2,6-diyl-alt-(4-(2-ethylhexyl)-3-fluorothieno[3,4-b]thiophene)-2-carboxylate-2-6-diyl (CS-18) and poly[(4,8-bis(5-hexylfuran-2-yl)-benzo[1,2-b;4,5-b′]dithiophene)-2,6-diyl-alt-(4-(2-ethylhexanoyl)-3-fluorothieno[3,4-b]thiophene)-2-6-diyl (CS-24) are disclosed. Further, an organic solar cell constructed of a derivatized benzo[1,2-b:3,4-b′]dithiophene(BDT)-thienothiophene (BDT-TT) based polymer is discussed.