Photoelectrochemical Performance of ZnO Nanorods Grown on Stainless Steel Substrate

International Conference on Condensed Matters and Advanced Materials 2018

Mufti, Nandang^1^2 ; Abadi, M. Tommy Hasan^1 ; Yasrina, Atsnaita^1 ; Sunaryono^1^2 ; Yudyanto^1 ; Diantoro, Markus^1^2 ; Fuad, Abdulloh^1^2

Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5, Malang

65145, Indonesia^1

Center of Advanced Materials for Renewable Energy (CAMRY), Universitas Negeri Malang, Jl. Semarang 5, Malang

65145, Indonesia^2

关键词: Excellent corrosion resistances;    Exponential equations;    Hydrothermal methods;    Photoelectrochemical performance;    Photoelectrochemicals;    Semiconductor metal-oxide materials;    Stainless steel substrates;    Structure and morphology;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/515/1/012023/pdf
DOI  :  10.1088/1757-899X/515/1/012023

来源: IOP

【 摘 要 】

Solar energy can be converted into hydrogen fuel using photoelectrochemical (PEC) cell through split water molecules. Among semiconductor metal oxide materials, ZnO material has shown promising potential as PEC cells due to the large band gap value (3.37 eV), high excitation energy (60 meV), abundant material, and non-toxic. ZnO in the form of nanorods (NRs) can increase the conversion efficiency of the PEC performance because of the large surface area. In this research, we investigated the influence of zinc nitrate concentrations on the morphology of ZnO NRs on the stainless steel substrate and its PEC performance. Stainless steel was chosen as a substrate because of high conductivity, excellent corrosion resistance, and inexpensive. ZnO NRs are synthesized by the hydrothermal method. The structure and morphology of ZnO NRs were characterized by XRD and SEM. While PEC performances were studied using two probe method. The graph of current versus times was fitted by an exponential equation to determine time response and time decay of ZnO NRs. We found that ZnO NRs has good photoresponse but the current value is low.