title: All-carbon electrode-based fiber-shaped dye-sensitized solar cells.
abstract: A novel fiber-shaped dye-sensitized solar cell (DSSC) based on an all-carbon electrode is presented, where low-cost, highly-stable, and biocompatible carbon materials are applied to both the photoanode and the counter electrode. The fibrous carbon-based photoanode has a core-shell structure, with carbon fiber core used as conductive substrate to collect carriers and sensitized porous TiO(2) film as shell to harvest light effectively. The highly catalytic all-carbon counter electrode is made from ink carbon coatings and carbon fiber substrate. Results show that the open circuit voltage can be largely improved through engineering at the carbon fiber/TiO(2) interface. An optimized diameter of the photoanode results in an efficiency of 1.9%. It is the first demonstration of efficient DSSCs based on all-carbon electrodes, and the devices are totally free from TCOs or any other expensive electrode materials. Also, this type of solar cell is significant in obtaining bio-friendly all-carbon photovoltaics suitable for large-scale production.
authors.affiliation: Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
authors.forename: Xin
authors.initials: X
authors.lastname: Cai
authors.forename: Shaocong
authors.initials: S
authors.lastname: Hou
authors.forename: Hongwei
authors.initials: H
authors.lastname: Wu
authors.forename: Zhibin
authors.initials: Z
authors.lastname: Lv
authors.forename: Yongping
authors.initials: Y
authors.lastname: Fu
authors.forename: Dan
authors.initials: D
authors.lastname: Wang
authors.forename: Chao
authors.initials: C
authors.lastname: Zhang
authors.forename: Hanny
authors.initials: H
authors.lastname: Kafafy
authors.forename: Zengze
authors.initials: Z
authors.lastname: Chu
authors.forename: Dechun
authors.initials: D
authors.lastname: Zou