The Electrochemical Property of the CdS/CdSe Co-Sensitized with TiO2 Electrodes
DOI:
https://doi.org/10.53555/ans.v2i3.109Keywords:
passivation,, solar cells,, quantum dotsAbstract
In this work, we have studied the electrochemical of the different electrodes through the Electrochemical impedance spectra (EIS). The experimental results indicated an increasing recombination in the photoanodes because more CdS QDs were loaded more on the TiO2/CdS/CdSe/ZnS. The results indicate that the photogenerated electrons were captured by the defect states in the QDs. Therefore, the electron transfer was more diffusively hindered, which increased the charge recombination and back transport reaction.
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References
Nozik, A, J (2005), Exciton Multiplication and Relaxation Dynamics in Quantum Dots: Applications to Ultrahigh-Efficiency SolarPhoton Conversion. Inorg. Chem.44, 6893-6899.
Wu. Jiang,Wang. Zhiming M. (2014), Quantum Dot Solar Cells. Springer-Verlag New York, Volume 15.
Guyot-Sionnest, P (2008), Colloidal Quantum Dots. C. R. Physique. 9, 77-787.
Vogel R, Pohl K, Weller H. (1990), Sensitization of highly porous polycrystalline TiO2electrodes by quantum sized CdS, Chem Phys Lett,174,241-6.
Lee Y. L, Lo Y. S. (2009), Highly efficient quantum-dot-sensitized solar cell based on co-sensitization of CdS/CdSe, Advanced Functional Materials, 19, 604–609.
Zhang Q, Zhang Y, Huang S, Huang X, Luo Y, Meng Q, Li D. (2010), Application of carbon
counterelectrode on CdS quantum dot-sensitized solar cells (QDSSCs), Electrochemistry Communications,12, 327–30.
Chen J, Zhao DW, SongJL, Sun XW, Deng WQ, Liu XW, Lei W. (2009), Directly assembled CdSe quantum dots on TiO2in aqueous solution by adjusting pH value for quantum dot sensitized solar cells, Electrochemistry Communications, 11, 2265–7.
Yu X-Y, Lei B-X, Kuang D-B, Su C-Y. (2012), High performance and reduced charge recombination of CdSe/CdS quantum dot-sensitized solar cells, J Mater Chem, 22, 12058–63.
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