title: A pyridine-functionalized pyrazolinofullerene used as a buffer layer in polymer solar cells.
abstract: A pyridine-functionalized pyrazolinofullerene (1) was synthesized in 42% yield via an improved one-pot reaction of C60, 3,6-di(2-pyridyl)-1,2,4,5-tetrazine, and water. The structure of 1 was unambiguously determined by X-ray diffraction of its single crystal. Due to the coordination capability of the functional groups on fullerene, compound 1 was used as a buffer layer to modify ZnO in inverted polymer solar cells. The power conversion efficiency was improved from 3.65% to 4.18% for inverted P3HT:PC61BM solar cells.
authors.affiliation: Key Lab of Environment-Friendly Chemistry and Applications of the Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China. liuyu03b@126.com.
authors.forename: Pingao
authors.initials: P
authors.lastname: Yang
authors.forename: Shan
authors.initials: S
authors.lastname: Chen
authors.forename: Yu
authors.initials: Y
authors.lastname: Liu
authors.forename: Zuo
authors.initials: Z
authors.lastname: Xiao
authors.forename: Liming
authors.initials: L
authors.lastname: Ding