期刊
ENERGIES
卷 14, 期 4, 页码 -出版社
MDPI
DOI: 10.3390/en14041159
关键词
dye-sensitized solar cell; di-carbazole; iodine-free electrolyte; spectral engineering; greenhouse
资金
- Research and Development Plan of Efficient and Low Cost Photovoltaic (P/V) Glass Panels, BRITE-PVGlass of the Supporting Small and Medium Enterprises for research projects in the fields 'Microelectronics' and 'Advanced Materials' (1b.1.1) of the Operati [FR/MIS: 80399/5021436]
- European Union
A di-carbazole-based dye was synthesized and evaluated for its potential as a sensitizer for wavelength selective semi-transparent DSSCs for greenhouse applications. The dye showed high blue light absorption and high transmittance in the red region, providing promising characteristics for spectral engineered DSSCs.
For the first time in dye-sensitized solar cell (DSSC) technology, a di-carbazole-based dye was synthesized and evaluated for its usage as a potential sensitizer for the development of wavelength selective semi-transparent DSSCs for greenhouses-oriented applications. The dye was designed to demonstrate a blue light absorption, allowing a high transmittance in the red region of the visible light, even after its adsorption on the anode semiconductor, which is the most important one for the photosynthetic action of the plants. The application of the new dye to DSSCs was examined using either a high-performance iodide-based electrolyte or a highly transparent iodine-free electrolyte to determine a good balance between electric power generation and device transparency. The spectral engineered DSSCs demonstrated quite promising characteristics, providing a high external quantum efficiency (higher than 70%) in the whole blue-green region of the visible light, while allowing high transparency (up to 55%) in the red region, where the second peak in the absorbance spectrum of chlorophyll is located. Finally, the derived results were discussed under the consideration of important metrics for this niche application, including the transparency of the solar cells in the region of photosynthetic active radiation and the attained crop growth factor. The present work constitutes one of the few comprehensive studies carried out up to now in the direction of the development of 3rd generation agrivoltaics for their possible integration as cladding materials in energy-autonomous greenhouses.
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