In:
Small, Wiley, Vol. 10, No. 22 ( 2014-11), p. 4754-4759
Abstract:
Honeycomb‐like mesoporous pyrite FeS 2 microspheres, with diameters of 500–800 nm and pore sizes of 25–30 nm, are synthesized by a simple solvothermal approach. The mesoporous FeS 2 microspheres are demonstrated to be an outstanding counter electrode (CE) material in quantum dot sensitized solar cells (QDSSCs) for electrocatalyzing polysulfide electrolyte regeneration. The cell using mesoporous FeS 2 microspheres as CE shows 86.6% enhancement in power conversion efficiency (PCE) than the cell using traditional noble Pt CE. Furthermore, it also shows 11.4% enhancement in PCE than the cell using solid FeS 2 microspheres as CE, due to the mesoporous structure facilitating better contact with polysulfide electrolyte and fast diffusion of redox couple species in electrolyte.
Type of Medium:
Online Resource
ISSN:
1613-6810
,
1613-6829
DOI:
10.1002/smll.201401102
Language:
English
Publisher:
Wiley
Publication Date:
2014
detail.hit.zdb_id:
2168935-0
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