Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 2, Issue 5, Pages 1502-1508Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ta13523c
Keywords
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Funding
- National Natural Science Foundation of China [11174163, 11374168, 51302137]
- K. C. Wong Magna Fund, Ningbo University
- Qiangjiang Talented Person Project of Zhengjiang [QJD1302008]
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Core-shell TiO2 microspheres were synthesised by a one step solvothermal method in ethanol solvent. The single anatase TiO2 core-shell structure exhibited high reflectance and large surface area due to its special structure. When applied in the dye-sensitized solar cells (DSCs), this micro-spherical core-shell structure effectively enhanced light harvesting and led to the increase of the photocurrent of the DSCs. As a result, 29% improvement in conversion efficiency of DSCs was achieved after introducing the core-shell TiO2 scattering layer. A comparative experiment between the core-shell structure and a solid structure further confirmed that the core-shell structure is more beneficial for light scattering and photovoltaic performance. The excellent properties of the microspherical core-shell TiO2 make it a promising candidate as a scattering material for DSCs.
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