Synthesis and characterization of a binary oxide ZrO2�?�TiO2 and its application in chlorophyll dye-sensitized solar cell with reduced graphene oxide as counter electrodes

Bulletin of materials science

Bipin Nair¹  Asha R Pai¹ 

[1] Amrita School of Biotechnology, Amrita Vishwa Vidyapeetham, Amritapuri, Kollam 690 525, India$$Amrita School of Biotechnology, Amrita Vishwa Vidyapeetham, Amritapuri, Kollam 690 525, IndiaAmrita School of Biotechnology, Amrita Vishwa Vidyapeetham, Amritapuri, Kollam 690 525, India$$

关键词: Dye-sensitized solar cells;    ZrO2â€�?�TiO2;    films;    chlorophyll;    nanocrystalline;    reduced graphene oxide.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Natural dyes have been used to sensitize TiO₂ nanocrystalline solar cells, but they still require pigment purification and co-adsorption of other compounds. In this study, nanocrystalline ZrO₂â€�?�TiO₂ films sensitized with the bioorganic dye, chlorophyll extracted from green leaves of Chromolaena odorata were investigated. The nanocrystalline ZrO₂â€�?�TiO₂ films were synthesized by the precipitation synthesis. The samples were characterized using X-ray diffraction, UVâ€�?�vis absorption spectroscopy, Fourier transform infrared spectroscopy and scanning electron microscopy. The photoelectrodes were prepared using ZrO₂â€�?�TiO₂ sensitized with the chlorophyll dye and the counter electrodes using reduced graphene oxide. The shift in the absorption wavelength of chlorophyll showed an increase of adsorption of dye. The conversion efficiency was also studied.

【 授权许可】

Unknown