Preparation and characterization of nanostructured ZnO thin films for photoelectrochemical splitting of water

Bulletin of materials science

Rohit Shrivastav¹  Anjana Solanki¹  Vidhika Sharma¹  A P Singh²  V R Satsangi²  Jaya Shrivastava¹  Monika Gupta¹  S Dass¹ 

[1] Department of Chemistry, Dayalbagh Educational Institute, Dayalbagh, Agra 282 005, India$$Department of Chemistry, Dayalbagh Educational Institute, Dayalbagh, Agra 282 005, IndiaDepartment of Chemistry, Dayalbagh Educational Institute, Dayalbagh, Agra 282 005, India$$;Department of Physics and Computer Science, Dayalbagh Educational Institute, Dayalbagh, Agra 282 005, India$$Department of Physics and Computer Science, Dayalbagh Educational Institute, Dayalbagh, Agra 282 005, IndiaDepartment of Physics and Computer Science, Dayalbagh Educational Institute, Dayalbagh, Agra 282 005, India$$

关键词: Nanostructured thin film;    zinc oxide;    solâ€�?�gel;    photoelectrochemical cell;    water splitting.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Nanostructured zinc oxide thin films (ZnO) were prepared on conducting glass support (SnO₂: F overlayer) via solâ€�?�gel starting from colloidal solution of zinc acetate 2-hydrate in ethanol and 2-methoxy ethanol. Films were obtained by spin coating at 1500 rpm under room conditions (temperature, 28â€�??35°C) and were subsequently sintered in air at three different temperatures (400, 500 and 600°C). The evolution of oxide coatings under thermal treatment was studied by glancing incidence X-ray diffraction and scanning electron microscopy. Average particle size, resistivity and bandgap energy were also determined. Photoelectrochemical properties of thin films and their suitability for splitting of water were investigated. Study suggests that thin films of ZnO, sintered at 600°C are better for photoconversion than the films sintered at 400 or 500°C. Plausible explanations have been provided.

【 授权许可】

Unknown