Mesoporous templated films in dye sensitized and perovskite solar cells

سال انتشار: 1397
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 294

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شناسه ملی سند علمی:

IRANCC20_828

تاریخ نمایه سازی: 28 اردیبهشت 1398

چکیده مقاله:

Using photovoltaic solar cells for direct conversion of light energy to electrical energy has been the human goals for exploitation of the sun as a clean and renewable energy source. Dye sensitized and Perovskite solar cells are a new generation of the photovoltaic cells which have attracted much attention in recent years, due to their simple construction method and economical cost.In the first section of this study, ordered and disordered mesoporous templated films were prepared by using dip and spin coating methods. To obtain these types of films with high thickness and without any cracking, a stabilization step after each coating and a calcination step after every five layers were used and finally their performance in solar cells was investigated. A maximum efficiency of 8.33% was achieved for dye sensitized solar cells made of the ordered mesoporous films prepared by dip coating method [1].In the second section, solar cells based on mesoporous films with four different morphologies of hexagonal, cubic, wormlike and gridlike were prepared and maximum efficiency of 8.73%, open circuit voltage of 743 mV, short circuit photocurrent density of 16.35 mA/cm2, and fill factor of 0.72 was recorded for dye sensitized solar cell made of photoelectrode with cubic morphology [2].In the third section, interfacial blocking layers were synthesized using four types of copolymers including PSA, Brij58, P123 and F127 and their impact was examined and compared with traditional dense blocking layers on performance of dye sensitized and perovskite solar cells. Our results showed that, through replacing the blocking layer templated by P123 copolymer with dense film, the short circuit density significantly improved from 15.89 to 21.23 mA cm-2 for dye sensitized solar cell and from 18.72 to 24.09 mA cm-2 for perovskite solar cell due to striking increase in light transmittance. Also, introduction of the P123 templated interfacial layer presents conversion efficiency enhancement by 33% and 16% in dye sensitized solar cell and perovskite solar cell, respectively [3].

نویسندگان

Reza Keshavarzi

Department of Chemistry, Catalysis Division, University of Isfahan, Isfahan, Iran

Valiollah Mirkhani

Department of Chemistry, Catalysis Division, University of Isfahan, Isfahan, Iran

Majid Moghadam

Department of Chemistry, Catalysis Division, University of Isfahan, Isfahan, Iran

Shahram Tangestaninejad

Department of Chemistry, Catalysis Division, University of Isfahan, Isfahan, Iran