title: Selective electron- or hole-transport enhancement in bulk-heterojunction organic solar cells with N- or B-doped carbon nanotubes.
abstract: Doping improves performance. N- or B-doped carbon nanotubes (CNTs) uniformly dispersed in the active layer of P3HT/PCMB (poly (3-hexylthiophene/[6,6]-phenyl-C61-butyric acid methyl ester) bulk-heterojunction solar cells selectively enhance electron or hole transport and eventually help carrier collection. Specifically, the incorporation of 1.0 wt% B-doped CNTs results in balanced electron and hole transport and accomplishes a power conversion efficiency improvement from 3.0% (without CNTs) to 4.1%.
authors.affiliation: Department of Materials Science and Engineering, KI for the Nanocentury, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea.
authors.forename: Ju Min
authors.initials: JM
authors.lastname: Lee
authors.forename: Ji Sun
authors.initials: JS
authors.lastname: Park
authors.forename: Sun Hwa
authors.initials: SH
authors.lastname: Lee
authors.forename: Hoyeon
authors.initials: H
authors.lastname: Kim
authors.forename: Seunghyup
authors.initials: S
authors.lastname: Yoo
authors.forename: Sang Ouk
authors.initials: SO
authors.lastname: Kim
mesh_terms: D001895:Boron / Q000737:chemistry*; D011211:Electric Power Supplies; D004579:Electron Transport; D037742:Nanotubes, Carbon / Q000737:chemistry*; D009584:Nitrogen / Q000737:chemistry*; D009930:Organic Chemicals / Q000737:chemistry*; D012993:Solar Energy
chemical_list: D037742:Nanotubes, Carbon; D009930:Organic Chemicals; D009584:Nitrogen; D001895:Boron