Utilization of saffron (Crocus sativus L.) as sensitizer in dye-sensitized solar cells (DSSCs)
| Autor: | Rosna Mat Taha, N.A. Mat Nor, N. Aziz, N. R. Ramli, Abdul Kariem Arof, I. M. Noor |
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| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Materials science ved/biology ved/biology.organism_classification_rank.species Iodide 02 engineering and technology Electrolyte 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics 0104 chemical sciences Electronic Optical and Magnetic Materials Dye-sensitized solar cell Lithium iodide chemistry.chemical_compound chemistry Crocus sativus Propylene carbonate Titanium dioxide Electrical and Electronic Engineering 0210 nano-technology Ethylene carbonate Nuclear chemistry |
| Zdroj: | Optical and Quantum Electronics. 49 |
| ISSN: | 1572-817X 0306-8919 |
| DOI: | 10.1007/s11082-016-0882-6 |
| Popis: | Photoelectrodes of dye-sensitized solar cells (DSSCs) have been prepared using nanosized titanium dioxide that have soaked in a solution of different saffron (Crocus sativus L.) spice content in ethanol. The optimized polyacrylonitrile (PAN)-based gel polymer electrolyte with 40.93 wt.% ethylene carbonate, 37.97 wt.% propylene carbonate, 4.37 wt.% tetrapropylammonium iodide, 9.86 wt.% PAN, 1.24 wt.% 1-butyl-3-methylimidazolium iodide, 4.35 wt.% lithium iodide and 1.28 wt.% iodine has been used as the electrolyte for DSSC. The electrolyte has conductivity of 2.91 mS cm−1 at room temperature (298 K). DSSCs were also sensitized with saffron solution that has been added with 30 wt.% chenodeoxycholic acid (CDCA) co-adsorbent and designated as DSSC P4. The solar cell converts light-to-electricity at an efficiency of 0.31%. This is 29% enhancement in efficiency for the DSSC without addition of CDCA in the saffron-ethanol solution. The DSSC exhibits current density at short-circuit (J sc ) of 1.26 mA cm−2, voltage at open circuit (V oc ) of 0.48 V and 51% fill factor. DSSC P4 also exhibits the highest incident photon-to-current density of more than 40% at 340 nm wavelength. |
| Databáze: | OpenAIRE |
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