title: Side-Chain Fluorination: An Effective Approach to Achieving High-Performance All-Polymer Solar Cells with Efficiency Exceeding 7.
abstract: Side-chain fluorination of polymers is demonstrated as a highly effective strategy to improve the efficiency of all-polymer solar cells from 2.93% (nonfluorinated P1) to 7.13% (fluorinated P2). This significant enhancement is achieved by synergistic improvements in open-circuit voltage, charge generation, and charge transport, as fluorination of the donor polymer optimizes the band alignment and the film morphology.
authors.affiliation: Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Republic of Korea.
authors.forename: Jiho
authors.initials: J
authors.lastname: Oh
authors.affiliation: Department of Chemistry Education, Graduate Department of Chemical Materials, Institute for Plastic Information and Energy Materials, Pusan National University, Busan, 609-735, Republic of Korea.
authors.forename: Kakaraparthi
authors.initials: K
authors.lastname: Kranthiraja
authors.affiliation: Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Republic of Korea.
authors.forename: Changyeon
authors.initials: C
authors.lastname: Lee
authors.affiliation: Department of Chemistry Education, Graduate Department of Chemical Materials, Institute for Plastic Information and Energy Materials, Pusan National University, Busan, 609-735, Republic of Korea.
authors.forename: Kumarasamy
authors.initials: K
authors.lastname: Gunasekar
authors.affiliation: Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Republic of Korea.
authors.forename: Seonha
authors.initials: S
authors.lastname: Kim
authors.affiliation: Department of Chemical and Biomedical Engineering, Florida State University, Tallahassee, FL, 32310, USA.
authors.forename: Biwu
authors.initials: B
authors.lastname: Ma
authors.affiliation: Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Republic of Korea.
authors.forename: Bumjoon J
authors.initials: BJ
authors.lastname: Kim
authors.affiliation: Department of Chemistry Education, Graduate Department of Chemical Materials, Institute for Plastic Information and Energy Materials, Pusan National University, Busan, 609-735, Republic of Korea.
authors.forename: Sung-Ho
authors.initials: SH
authors.lastname: Jin
keywords: all-polymer solar cells; charge transport; exciton dissociation; fluorination; high efficiency