Premium
Solution‐Based in–situ Synthesis of Transition Metal Sulfides as Efficient Counter Electrodes for Dye‐Sensitized Solar Cells
Author(s) -
Huang Niu,
Zheng Fang,
Xu Jixing,
Huang Hua,
Li Guowang,
Xia Zhifen,
Sun Panpan,
Sun Xiaohua
Publication year - 2016
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201600903
Subject(s) - tin oxide , materials science , auxiliary electrode , transition metal , sulfide , tin , electrochemistry , electrode , nickel sulfide , oxide , x ray photoelectron spectroscopy , metal , doping , fluorine , catalysis , inorganic chemistry , chemical engineering , chemistry , optoelectronics , metallurgy , organic chemistry , electrolyte , engineering
Transition metal sulfide films Co−S, Mo−S, and Ni−S have been deposited by spin‐coating their precursor solutions followed by a mild thermal treatment. X‐ray diffraction results and X‐ray photoelectron spectrum demonstrate that the solution‐processed Co−S, Mo−S, and Ni−S are composed of CoS 2 , MoS 2 , and NiS with NiS 2 , respectively. Electrochemical characterizations reveal these sulfide films deposited on fluorine doped tin oxide (FTO) glasses as counter electrodes (CEs) show high catalytic activity to I 3 − species and good electrical conductivity compared to that of conventional Pt/FTO. Photo‐electric conversion efficiencies of 6.42 %, 5.82 %, and 5.72 % are obtained for the DSSCs adopting Co−S CE, Mo−S CE, and Ni−S CE, respectively, comparable to the device (6.59 %) employing Pt/FTO CE.