Optimizing electrical-optical parameters in TiO2@CdS@CdxCu1-xSe photoanodes using UV–Vis spectra, J-V curves, and EIS experiments in quantum dot-sensitized solar cells
In this research, photoanodes on the basis of a CdS/CdSe multilayer film, where CdSe-doped with Cu were successfully fabricated and optimized at a 3% doping concentration. The highest performance of quantum dot solar cells is 4.24%. This result is also confirmed by studying the optical and electrica...
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| Veröffentlicht in: | Optical and quantum electronics 2023-12, Vol.55 (14), Article 1221 |
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| creator | Tuan, Thi Tran Anh Hung, Phan Thanh Chinh, Truong Thi Ngoc Van Sau, Nguyen Tu, Le Thi Ngoc Nguyen, Van Cuong Phuc, Dang Huu |
| description | In this research, photoanodes on the basis of a CdS/CdSe multilayer film, where CdSe-doped with Cu were successfully fabricated and optimized at a 3% doping concentration. The highest performance of quantum dot solar cells is 4.24%. This result is also confirmed by studying the optical and electrical properties of quantum dot solar cells that change with the Cu doping concentration. The enhanced efficiency can be explained by electrical-optical parameters, which are determined from UV–Vis spectra, J–V curves, and EIS experiments. The optical parameters such as absorption density, the band gap, the top of the valence band, and the bottom of the conduction band are estimated based on the Tauc equation and the UV–Vis spectra experiments for optical properties. Moreover, the electrical parameters, such as the shunt resistance and R
ct1
and R
ct2
resistances, are also extracted from J-V curves and the electrochemical impedance spectra experiments for electrical properties. Finally, the obtained results are used to explain the enhanced performance efficiency of devices. |
| doi_str_mv | 10.1007/s11082-023-05363-x |
| format | Article |
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ct1
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ct2
resistances, are also extracted from J-V curves and the electrochemical impedance spectra experiments for electrical properties. 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The highest performance of quantum dot solar cells is 4.24%. This result is also confirmed by studying the optical and electrical properties of quantum dot solar cells that change with the Cu doping concentration. The enhanced efficiency can be explained by electrical-optical parameters, which are determined from UV–Vis spectra, J–V curves, and EIS experiments. The optical parameters such as absorption density, the band gap, the top of the valence band, and the bottom of the conduction band are estimated based on the Tauc equation and the UV–Vis spectra experiments for optical properties. Moreover, the electrical parameters, such as the shunt resistance and R
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ct2
resistances, are also extracted from J-V curves and the electrochemical impedance spectra experiments for electrical properties. Finally, the obtained results are used to explain the enhanced performance efficiency of devices.</abstract><cop>New York</cop><pub>Springer US</pub><doi>10.1007/s11082-023-05363-x</doi></addata></record> |
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| subjects | Cadmium selenides Cadmium sulfide Characterization and Evaluation of Materials Computer Communication Networks Conduction bands Doping Electrical Engineering Electrical properties Electrons Experiments Lasers Multilayers Optical Devices Optical properties Optics Parameters Performance enhancement Photoanodes Photonics Photovoltaic cells Physics Physics and Astronomy Quantum dots Shunt resistance Solar cells Spectra Titanium dioxide Valence band |
| title | Optimizing electrical-optical parameters in TiO2@CdS@CdxCu1-xSe photoanodes using UV–Vis spectra, J-V curves, and EIS experiments in quantum dot-sensitized solar cells |
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