نویسندگان | زهره چمن زاده -محمد نورمحمدی - مصطفی زاهدیفر |
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نشریه | MAT SCI SEMICON PROC |
نوع مقاله | Full Paper |
تاریخ انتشار | 2017/2/01 |
رتبه نشریه | علمی - پژوهشی |
نوع نشریه | چاپی |
کشور محل چاپ | ایران |
چکیده مقاله
Photovoltaic performance of dye sensitized solar cell (DSSC) with absorber layer of TiO2 nanotube (NT)/TiO2
nanoparticles (NPs)/ZnO NPs was investigated. Fabricated DSSC exhibits enhanced open circuit voltage,
current density and power conversion efficiency compared with DSSC having absorber layer of TiO2 NT/ TiO2
NPs and TiO2 NT/ZnO NPs. To further explore the dynamics of charge transport and recombination processes,
electrochemical impedance analysis, intensity modulated photovoltage spectroscopy and photocurrent spectroscopy
were carried out on the fabricated DSSCs. It was found that an optimal combination of TiO2/ZnO NPs on
top of TiO2 NTs reduces the electron recombination and improves transport pathways, resulting in an efficient
charge collection of 99%