Narrow bandgap non-fullerene acceptors and devices including narrow bandgap non-fullerene acceptors

US11233207B2 · kind B2 · utility

Assignee

• The Regents of the University of California · US

Inventors

• Martin Seifrid · Goleta, US
• Guillermo C. Bazan · Lompoc, US
• Jaewon Lee · Gangneung-si, KR
• Thuc-Quyen Nguyen · Midland School, US
• Benjamin R. Luginbuhl · Lompoc, US

Key dates

• Filing date: Nov 2, 2018
• Grant date: Jan 25, 2022
• Expiry date: Nov 2, 2038

Classification

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

Abstract

Organic devices comprising an organic semiconducting acceptor motif coupled to a donor motif. Examples include IOTIC-2F, ITOTIC-2F, COTIC-4F, and SiOTIC-4F as acceptor materials. The acceptor materials have narrow bandgap (1.1 eV-1.3 eV), strong near-IR absorption and high solar cell EQE in near infrared (IR) region. The acceptor materials may also be used as the absorbing/light sensitive region in an IR photodetector.