Synthesis of photovoltaic conjugated polymers

US9783634B2 · kind B2 · utility

Assignees

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

Inventors

• Shuangxi Wang · El Monte, US
• Chenjun Shi · El Monte, US
• Ruby Chen · El Monte, US
• Junlian Zhang · El Monte, US
• Wei Wang · Dublin, US
• Yue Wu · Beijing, CN
• Hui Huang · Longbeilingcun, CN
• Amit Palkar · Bartlesville, US
• Ting He · Dublin, US

Key dates

• Filing date: Mar 6, 2015
• Grant date: Oct 10, 2017
• Expiry date: May 21, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P70/50
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A method of making a fluorothieno[3,4-b]thiophene derivatives and photovoltaic polymers containing same using 3-bromothiophene-2-carboxylic acid as a starting material. This synthetic route provides an easier synthesis as well as greater yield and a purer product, which produces superior results over the prior art less pure products. The resulting materials can be used in a variety of photovoltaic applications and devices, especially solar cells.