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Edge‐Oriented Tungsten Disulfide Catalyst Produced from Mesoporous WO 3 for Highly Efficient Dye‐Sensitized Solar Cells
Author(s) -
Ahn Sung Hoon,
Manthiram Arumugam
Publication year - 2016
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201501814
Subject(s) - triiodide , dye sensitized solar cell , auxiliary electrode , mesoporous material , materials science , tungsten disulfide , enhanced data rates for gsm evolution , energy conversion efficiency , catalysis , nanotechnology , electrode , optoelectronics , computer science , telecommunications , chemistry , organic chemistry , electrolyte , metallurgy
An edge‐oriented WS 2 as a counter electrode (CE) is reported for highly efficient dye‐sensitized solar cells (DSSCs). Converted directly from a mesoporous interconnected WO 3 structure by a rapid sulfurization process at high temperature, the oriented WS 2 exposes a large number of active edge sites that lead to high catalytic activity toward triiodide reduction in DSSCs. The DSSC device with optimized edge‐oriented WS 2 CE exhibits a power conversion efficiency (PCE) of 8.85% at 100 mW cm −2 , which is higher than that of Pt (7.20%).
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