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Issue 40, 2015
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Efficient Ag8GeS6 counter electrode prepared from nanocrystal ink for dye-sensitized solar cells

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Abstract

Ternary metal sulfides could provide more alternatives and tune physicochemical properties due to the presence of two cations. However, only Co/Ni-based ternary sulfides have been explored as counter electrode (CE) materials for dye-sensitized solar cells (DSSCs). Herein, CEs fabricated using Ag8GeS6 nanocrystal ink exhibited efficient electrocatalytic activity in the reduction of I3 to I in DSSCs. The DSSC with the Ag8GeS6 CE displayed a higher power conversion efficiency of 8.10% than that with the Pt CE (8.02%). Moreover, the devices also showed the characteristics of fast activity onset, high multiple start/stop capability and good irradiation stability. The results indicated that the developed Ag8GeS6 CE could be a promising alternative to Pt CEs in DSSCs.

Graphical abstract: Efficient Ag8GeS6 counter electrode prepared from nanocrystal ink for dye-sensitized solar cells

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Supplementary files

Article information


Submitted
14 Jul 2015
Accepted
25 Aug 2015
First published
26 Aug 2015

J. Mater. Chem. A, 2015,3, 20359-20365
Article type
Paper
Author version available

Efficient Ag8GeS6 counter electrode prepared from nanocrystal ink for dye-sensitized solar cells

Q. He, T. Qian, J. Zai, Q. Qiao, S. Huang, Y. Li and M. Wang, J. Mater. Chem. A, 2015, 3, 20359
DOI: 10.1039/C5TA05304H

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