title: A High Efficiency Nonfullerene Organic Solar Cell with Optimized Crystalline Organizations.
abstract: A well-organized donor-acceptor crystalline structure is examined for high -performance nonfullerene solar cells. By thermal annealing, nanoscale structures of both donor and acceptor domains are successfully modulated, followed by -significant changes in the resulting -photovoltaic characteristics. When annealed at 90 °C, a maximum power conversion efficiency of 7.64% with a -remarkable open-circuit voltage of 1.03 V is obtained.
authors.affiliation: Center for Supramolecular Optoelectronic Materials, Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-744, South Korea.
authors.forename: Oh Kyu
authors.initials: OK
authors.lastname: Kwon
authors.affiliation: Department of Cogno-Mechatronics Engineering, Pusan National University, Miryang, 627-706, South Korea.
authors.forename: Mohammad Afsar
authors.initials: MA
authors.lastname: Uddin
authors.affiliation: Center for Supramolecular Optoelectronic Materials, Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-744, South Korea.
authors.forename: Jung-Hwa
authors.initials: JH
authors.lastname: Park
authors.affiliation: Center for Supramolecular Optoelectronic Materials, Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-744, South Korea.
authors.forename: Sang Kyu
authors.initials: SK
authors.lastname: Park
authors.affiliation: Department of Chemistry, Korea University, Seoul, 136-713, South Korea.
authors.forename: Thanh Luan
authors.initials: TL
authors.lastname: Nguyen
authors.affiliation: Department of Chemistry, Korea University, Seoul, 136-713, South Korea.
authors.forename: Han Young
authors.initials: HY
authors.lastname: Woo
authors.affiliation: Center for Supramolecular Optoelectronic Materials, Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-744, South Korea.
authors.forename: Soo Young
authors.initials: SY
authors.lastname: Park
keywords: fullerene-free devices; nonfullerene acceptors; semicrystalline photovoltaic materials; thermal annealing