زهره احمديه

In this study, dye-sensitized solar cells (DSSCs) were investigated using a zinc oxide (ZnO) photoanode and nitrogen-doped graphene quantum dots (N-GQDs) sensitized with porphyrin dye (TCPP). To eva‎luate the effect of graphene quantum dots, two types of solar cells were fabricated: one with ZnO and porphyrin dye and another with ZnO, N-GQDs, and porphyrin dye. The aim of this research was to examine the impact of N-GQDs on improving energy conversion efficiency and electron transport in solar cells. The results showed that the addition of N-GQDs to the photoanode structure increased light absorption, enhanced charge carrier separation, and reduced electron-hole recombination. These improvements led to an increase in energy conversion efficiency compared to cells without N-GQDs.Overall, this study demonstrates that the combination of ZnO and N-GQDs can be an effective approach for optimizing the performance of dye-sensitized solar cells and contributing to the advancement of novel technologies in the field of solar energy.

پورفيرين، سلول‌هاي فتوولتائيك، نقاط كوانتومي گرافن دوپ شده با نيتروژن.

Porphyrin, Photovoltaic Cells, Nitrogen-Doped Graphene Quantum Dots (N-GQDs).

zohreh ahmadiyeh

Dr. Rahmatollah Rahimi Dr. Mohammad Reza Zamani Meymian