Journal
CURRENT APPLIED PHYSICS
Volume 19, Issue 12, Pages 1355-1361Publisher
ELSEVIER
DOI: 10.1016/j.cap.2019.08.020
Keywords
Dye-sensitized solar cell; Ni3S2; Multiwall carbon nanotubes; Counter electrode; Hydrothermal method
Funding
- Thailand Research Fund (TRF), The Office of the Higher Education Commission (OHEC) [MRG6180267]
- Thailand Toray Science Foundation (TTSF)
- Post-doctoral Program from Research Affairs and Graduate School, Khon Kaen University [58227]
- Research Network NANOTEC (RNN) program of the National Nanotechnology Center (NANOTEC), NSTDA, Ministry of Higher Education, Science, Research and Innovation
- Mahasarakham University
- Faculty of Science, Mahasarakham University, Thailand
- Khon Kaen University, Thailand
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Composite films nickel sulfide (Ni3S2) nanoparticles were grown on multiwall carbon nanotubes (MWCNTs) and in situ coated onto conducing glass substrates by the hydrothermal process at 170 degrees C. These Ni3S2@MWCNTs films were applied for counter electrodes (CEs) of dye-sensitized solar cells (DSSCs). In this work, nanostructure, crystalline structure, electrochemical activities and electron-charge transfer resistance of CEs were studied. In addition, the effective surface areas of CEs were analyzed and discussed as well. The power conversion efficiency (PCE) enhancement of up to 7.48%, compared with that of Ni3S2-DSSC, was demonstrated for a Ni3S2@MWCNTs DSSC.
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