Revisiting Metal Sulfide Semiconductors: A Solution-Based General Protocol for Thin Film Formation, Hall Effect Measurement, and Application Prospects

Title
Revisiting Metal Sulfide Semiconductors: A Solution-Based General Protocol for Thin Film Formation, Hall Effect Measurement, and Application Prospects
Authors
한성환
Keywords
SENSITIZED SOLAR-CELLS; CHEMICAL BATH DEPOSITION; ATOMIC LAYER DEPOSITION; FREE COUNTER ELECTRODE; EFFICIENT WATER OXIDATION; REDUCED GRAPHENE OXIDE; ACTIVE EDGE SITES; HIGH-PERFORMANCE; HYDROGEN EVOLUTION; VAPOR-DEPOSITION
Issue Date
2015-06
Publisher
WILEY-V C H VERLAG GMBH
Citation
ADVANCED FUNCTIONAL MATERIALS, v. 25, NO 36, Page. 5739-5747
Abstract
Nanostructured thin films of metal sulfides (MS) are highly desirable materials for various optoelectronic device applications. However, a general low-temperature protocol that describes deposition of varieties of MS structures, especially in their film form is still not available in literatures. Here, a simple and highly effective general solution-based deposition protocol for highly crystalline and well-defined nanostructured MS thin films from ethanol on variety of conducting and non-conducting substrates is presented. The films display remarkable electronic properties such as high carrier mobility and high conductivity. When NiS thin film deposited on a flexible polyethylene terephthalate (PET) substrate is used as a fluorine doped tin oxide (FTO)-free counter electrode in dye-sensitized solar cells, it exhibits a solar-to-electric power conversion efficiency of 9.27 +/- 0.26% with the highest conversion efficiency as high as 9.50% (vs 8.97 +/- 0.07% exhibited by Pt-electrode). In addition, the NiS film deposited on a Ti-foil has demonstrated an outstanding catalytic activity for the hydrogen and oxygen evolution reactions from water.
URI
http://onlinelibrary.wiley.com/doi/10.1002/adfm.201500964/abstract;jsessionid=752AC1D1514B7AAB422D97B50B488A1B.f02t02http://hdl.handle.net/20.500.11754/25087
ISSN
1616-301X; 1616-3028
DOI
http://dx.doi.org/10.1002/adfm.201500964
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > CHEMISTRY(화학과) > Articles
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