Enhanced Performance of Supported HfO 2  Counter Electrodes for Redox Couples Used in Dye‐Sensitized Solar Cells | Zendy

Yun Sining | Zendy; Pu Haihui | Zendy; Chen Junhong | Zendy; Hagfeldt Anders | Zendy; Ma Tingli | Zendy

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Enhanced Performance of Supported HfO 2 Counter Electrodes for Redox Couples Used in Dye‐Sensitized Solar Cells

Author(s) -

Yun Sining,

Pu Haihui,

Chen Junhong,

Hagfeldt Anders,

Ma Tingli

Publication year - 2014

Publication title -

chemsuschem

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.412

H-Index - 157

eISSN - 1864-564X

pISSN - 1864-5631

DOI - 10.1002/cssc.201301140

Subject(s) - triiodide , auxiliary electrode , redox , electrolyte , dye sensitized solar cell , iodide , electrode , catalysis , materials science , mesoporous material , energy conversion efficiency , inorganic chemistry , chemical engineering , chemistry , organic chemistry , optoelectronics , engineering

Mesoporous‐graphitic‐carbon‐supported HfO 2 (HfO 2 ‐MGC) nanohybrids were synthesized by using a soft‐template route. Characterization and a systematic investigation of the catalytic properties, stability, and catalytic mechanism were performed for HfO 2 ‐MGC counter electrodes (CEs) in dye‐sensitized solar cells (DSSCs). The new HfO 2 ‐MGC as a CE in DSSCs showed a surprisingly high efficiency of 7.75 % for the triiodide/iodide redox couple and 3.69 % for the disulfide/thiolate redox couple, greater than the Pt electrode in the corresponding electrolyte system, which opens up a possibility for its practical application.

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