Natural Dyes as Photosensitizers for Dye-sensitized Solar Cells

Автор(ы) Hatem S. El-Ghamri1,2, Sofyan A. Taya1,2 , Taher M. El-Agez1,2 , Amal M. Al-Kahlout3, Naji Al Dahoudi3, Monzir S. Abdel-Latif2,4

1 Physics Department, Islamic University of Gaza, Gaza, Palestinian Authority

2 Renewable Energy Center, Islamic University of Gaza, Gaza, Palestinian Authority

3 Physics Department, Al Azhar University, Gaza, Palestinian Authority

4 Chemistry Department, Islamic University of Gaza, Gaza, Palestinian Authority

Выпуск Том 7, Год 2015, Номер 3
Даты Получено 06.06.2015;, в отредактированной форме – 20.07.2015; опубликовано online 20.10.2015
Ссылка Hatem S. El-Ghamri, Sofyan A. Taya, Taher M. El-Agez, et al., J. Nano- Electron. Phys. 7 No 3, 03001 (2015)
PACS Number(s) 84.60.Jt
Ключевые слова Dye-sensitized solar cell (3) , Natural dye, ZnO (60) .
Аннотация Dye-sensitized solar cells (DSSCs) were assembled using Zinc oxide (ZnO) nanoparticles as a photoelectrode and natural dyes extracted from eight natural plants as photosensitizers. The structural properties of the synthesized ZnO nanoparticles were studied using XRD, SEM and TEM characterizations. Photovoltaic parameters such as short circuit current density Jsc, open circuit voltage Voc, fill factor FF, and overall conversion efficiency η for the fabricated cells were determined under 100 mW/cm2 illumination. It was found that the DSSC fabricated with the extracted safflower dye as a sensitizer showed the best performance. Also, its performance increased with increasing the sintering temperature of the semiconductor electrode with highest performance at 400 °C. Moreover, it was found that a semiconductor electrode of 7.5 μm thickness yielded the highest response.

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