title: Low-cost flexible nano-sulfide/carbon composite counter electrode for quantum-dot-sensitized solar cell.
abstract: Cu2S nanocrystal particles were in situ deposited on graphite paper to prepare nano-sulfide/carbon composite counter electrode for CdS/CdSe quantum-dot-sensitized solar cell (QDSC). By optimization of deposition time, photovoltaic conversion efficiency up to 3.08% was obtained. In the meantime, this composite counter electrode was superior to the commonly used Pt, Au and carbon counter electrodes. Electrochemical impedance spectra further confirmed that low charge transfer resistance at counter electrode/electrolyte interface was responsible for this, implied the potential application of this composite counter electrode in high-efficiency QDSC.
authors.affiliation: Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, 100190, Beijing, China. qbmeng@aphy.iphy.ac.cn.
authors.forename: Minghui
authors.initials: M
authors.lastname: Deng
authors.forename: Quanxin
authors.initials: Q
authors.lastname: Zhang
authors.forename: Shuqing
authors.initials: S
authors.lastname: Huang
authors.forename: Dongmei
authors.initials: D
authors.lastname: Li
authors.forename: Yanhong
authors.initials: Y
authors.lastname: Luo
authors.forename: Qing
authors.initials: Q
authors.lastname: Shen
authors.forename: Taro
authors.initials: T
authors.lastname: Toyoda
authors.forename: Qingbo
authors.initials: Q
authors.lastname: Meng