研究目的
Investigating the synthesis of carbon-doped NiO nanoparticles and their application in p-type dye-sensitized solar cells to achieve high open-circuit voltage and efficiency.
研究成果
The carbon-doped NiO photocathode based dye-sensitized solar cells exhibited significantly improved efficiency of up to 0.053% with a new record VOC of 0.50 V and a comparable JSC of 0.202 mA cm-2. The improved performance is attributed to the effective modulation of doping-introduced characters, including morphology, crystallinity, electrical conductivity, and charge transfer ability.
研究不足
The study focuses on the synthesis and application of carbon-doped NiO in dye-sensitized solar cells, with limitations including the need for high-temperature calcination and the trade-off between surface area and charge transport properties.
1：Experimental Design and Method Selection:
Synthesis of carbon-doped NiO nanoparticles via a hydrothermal method followed by calcination.
2：Sample Selection and Data Sources:
NiCl2·6H2O, Glucose, and methenamine were used as precursors.
3：List of Experimental Equipment and Materials:
X-ray diffractometer (XRD), transmission electron microscopy (TEM), Brunauer–Emmett–Teller (BET) surface area analyzer, UV–Vis spectrophotometer, X-ray photoelectron spectroscopy (XPS), solar simulator, electrochemical impedance spectra (EIS).
4：Experimental Procedures and Operational Workflow:
Hydrothermal synthesis at 180 °C for 24 h, calcination at 950 °C, fabrication of NiO photocathode, assembly of dye-sensitized solar cells.
5：Data Analysis Methods:
XRD for crystallinity, TEM for morphology, BET for surface area, UV–Vis for dye loading, XPS for chemical composition, J?V curves for photovoltaic performance, EIS for charge transport properties.
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