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Optimization of quantum dots for solar cell applications |
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| รหัสดีโอไอ | |
| Creator | 1. Lekshmi Gangadhar 2. P. K Praseetha |
| Title | Optimization of quantum dots for solar cell applications |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2564 |
| Journal Title | Songklanakarin Journal of Science and Technology (SJST) |
| Journal Vol. | 43 |
| Journal No. | 2 |
| Page no. | 588-595 |
| Keyword | cadmium sulfide, zinc sulfide, quantum dots, core/shell, solar cells |
| URL Website | https://rdo.psu.ac.th/sjstweb/index.php |
| ISSN | 0125-3395 |
| Abstract | The quantum dots-sensitized solar cells (QDSSC) provide an alternative concept to present day photovoltaic devices.Cadmium sulfide/Zinc sulfide-sensitized solar cells have been synthesized by chemical bath deposition, based on an aqueousmedium involving cadmium sulphate, zinc acetate, thiourea and ammonium hydroxide. To improve the luminescence efficiencyand photo stability of the quantum dots (QDs), coating the quantum dots with another wide bandgap semiconductor is a usualprocedure. In particular, for CdS quantum dots, the particles were covered with ZnS to establish a core/shell system. ThisCdS/ZnS quantum dots are assembled onto nanoporous TiO2 films for quantum dots-sensitized solar cell applications. Physicaland chemical properties of the formed nanoparticles were analyzed using field emission scanning electron microscope (FESEM), ultraviolet-visible light (UV-VIS) spectrometer, Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction(XRD). An efficiency as high as 1.80% for the CdS/ZnS quantum dots-sensitized solar cells was achieved using the presentmethod. |
