Synthesis and characterization of new triphenylamine-based dyes with novel anchoring groups for dye-sensitized solar cell applications
| Autor: | Masoume Azari, Raheleh Ghahary, Alireza Salimi Beni, Behzad Hosseinzadeh |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Open-circuit voltage Photovoltaic system Energy conversion efficiency 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Triphenylamine Photochemistry 01 natural sciences Atomic and Molecular Physics and Optics 0104 chemical sciences Electronic Optical and Magnetic Materials chemistry.chemical_compound Dye-sensitized solar cell chemistry Density functional theory Electrical and Electronic Engineering 0210 nano-technology Short circuit HOMO/LUMO |
| Zdroj: | Journal of Materials Science: Materials in Electronics. 28:1859-1868 |
| ISSN: | 1573-482X 0957-4522 |
| DOI: | 10.1007/s10854-016-5737-1 |
| Popis: | Three new chromophores based on the triphenylamine (MM, DM, DN) with various novel electron withdrawing anchoring groups have been synthesized for use in dye-sensitized solar cells (DSSCs). The sensitizers were characterized by 1H and 13C NMR, Mass, UV–Vis, and electrochemical analysis. The HOMO and LUMO electron distributions of the sensitizers were calculated using density functional theory on a B3LYP level for geometry optimization. The DSSC device based on DM dye showed the best photovoltaic performance among MM and DN dyes: maximum monochromatic incident photon-to-current conversion efficiency (IPCE) of 98 %, short circuit current (J SC) of 4.58 mA/cm2, open circuit voltage (V OC) of 0.62 V, fill factor (FF) of 0.77, and overall power conversion efficiency (PCE) of 2.01 %. The results reveal that the difference in number and type of anchoring groups of the dyes significantly influence the photovoltaic performance of their DSSCs. |
| Databáze: | OpenAIRE |
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