title: Panchromatic photon-harvesting by hole-conducting materials in inorganic-organic heterojunction sensitized-solar cell through the formation of nanostructured electron channels.
abstract: Additional photon-harvesting by hole transporting materials in Sb(2)S(3)-sensitized solar cell is demonstrated through the formation of electron channels in the hole transporter such as P3HT (poly(3-hexylthiophene)) and PCPDTBT(poly(2,6-(4,4-bis-(2-ethylhexyl)-4H-cyclopenta[2,1-b;3,4-b']dithiophene)-alt-4,7(2,1,3-benzothiadiazole)) that can act as both a hole conductor and light absorber. As a result, the short-circuit current density is improved with an increment in overall efficiency. These findings provide new insights into use of light-absorbing conjugated polymers as a hole conductor in the inorganic-organic heterojunction sensitized solar cells.
authors.affiliation: Solar Energy Materials Research Group, Division of Advanced Materials, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon 305-600, Korea.
authors.forename: Jeong Ah
authors.initials: JA
authors.lastname: Chang
authors.forename: Sang Hyuk
authors.initials: SH
authors.lastname: Im
authors.forename: Yong Hui
authors.initials: YH
authors.lastname: Lee
authors.forename: Hi-Jung
authors.initials: HJ
authors.lastname: Kim
authors.forename: Choong-Sun
authors.initials: CS
authors.lastname: Lim
authors.forename: Jin Hyuk
authors.initials: JH
authors.lastname: Heo
authors.forename: Sang Il
authors.initials: SI
authors.lastname: Seok