title: Amine-based polar solvent treatment for highly efficient inverted polymer solar cells.
abstract: The interfacial dipolar polarization in inverted structure polymer solar cells, which arises spontaneously from the absorption of ethanolamine end groups, such as amine and hydroxyl groups on ripple-structure zinc oxide (ZnO-R), lowers the contact barrier for electron transport and extraction and leads to enhanced electron mobility, suppression of bimolecular recombination, reduction of the contact resistance and series resistance, and remarkable enhancement of the power conversion efficiency.
authors.affiliation: School of Mechanical and Advanced Materials Engineering, KIST-UNIST Ulsan Center for Convergent Materials, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan, 689-798, Republic of Korea.
authors.forename: Bo Ram
authors.initials: BR
authors.lastname: Lee
authors.forename: Eui Dae
authors.initials: ED
authors.lastname: Jung
authors.forename: Yun Seok
authors.initials: YS
authors.lastname: Nam
authors.forename: Minbok
authors.initials: M
authors.lastname: Jung
authors.forename: Ji Sun
authors.initials: JS
authors.lastname: Park
authors.forename: Seungjin
authors.initials: S
authors.lastname: Lee
authors.forename: Hyosung
authors.initials: H
authors.lastname: Choi
authors.forename: Seo-Jin
authors.initials: SJ
authors.lastname: Ko
authors.forename: Na Ra
authors.initials: NR
authors.lastname: Shin
authors.forename: Young-Kuk
authors.initials: YK
authors.lastname: Kim
authors.forename: Sang Ouk
authors.initials: SO
authors.lastname: Kim
authors.forename: Jin Young
authors.initials: JY
authors.lastname: Kim
authors.forename: Hyung-Joon
authors.initials: HJ
authors.lastname: Shin
authors.forename: Shinuk
authors.initials: S
authors.lastname: Cho
authors.forename: Myoung Hoon
authors.initials: MH
authors.lastname: Song
keywords: inverted polymer solar cells (iPSCs); polar solvents; PTB7; zinc oxide; ripple structure (ZnO-R); ethanolamine