Synthesis of zinc oxide nanoparticles using tea leaf extract and its application for solar cell

Bulletin of materials science

Prasanta Sutradhar¹  Mitali Saha¹ 

[1] Department of Chemistry, National Institute of Technology, Agatrala 799046, Tripura, India$$Department of Chemistry, National Institute of Technology, Agatrala 799046, Tripura, IndiaDepartment of Chemistry, National Institute of Technology, Agatrala 799046, Tripura, India$$

关键词: Tea leaf;    ZnO;    NG;    microwave;    solar cell.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

We report the synthesis of zinc oxide (ZnO) nanoparticles and its composite with natural graphite (NG) powder for application in solar cell. ZnO nanoparticles were synthesized using green tea leaf extract as non-toxic and eco-friendly reducing material under microwave irradiation. The formation of ZnO nanoparticles was monitored by the colour changes during the reaction. The synthesized ZnO nanoparticles were characterized by particle size analyzer (dynamic light scattering), scanning electron microscope, UV�?�visible spectroscopy, atomic force microscope and fluorescence spectroscopy. The average particle size of the ZnO nanoparticles was found to be 26 nm. The synthesized ZnO nanoparticles were further used to prepare ZnO/NG composite material with commercially available NG powder. The current�?�voltage (𝐼�?����??) characteristics of thin film of ZnO/NG nanocomposite were investigated. J_SC (short-circuit photocurrent), V_OC (open-circuit photovoltage), FF (fill factor) and �? (efficiency of the solar cell) were measured for ZnO/NG nanocomposite. Interestingly, the cell showed a good power conversion efficiency of 3.54% with high stability.

【 授权许可】

Unknown