<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>In this study, an external electric field was used to facilitate the growth of vertically aligned ZnO crystal rods on the surface of indium tin oxide (ITO) glass substrates in an aqueous solution. We used Zn(NO3) and C6H12N4 as precursor and reagent. We found that the external electric field generated by DC potential of 5 kV between two electrodes that were placed outside the bottle could facilitate the growth of homogeneous, high density and vertically aligned ZnO crystal rods. Position of the substrate during the growth of crystal was found to be important to obtain well aligned crystal. The crystals that were grown near the negative electrode had the best properties. Photoluminescence measurement at room temperature revealed sharp peaks at around 360 and 380 nm and a broad peak around 420 nm that indicated good properties of ZnO crystals grown with external electric field.</p></abstract>

In this study, an external electric field was used to facilitate the growth of vertically aligned ZnO crystal rods on the surface of indium tin oxide (ITO) glass substrates in an aqueous solution. We used Zn(NO3) and C6H12N4 as precursor and reagent. We found that the external electric field generated by DC potential of 5 kV between two electrodes that were placed outside the bottle could facilitate the growth of homogeneous, high density and vertically aligned ZnO crystal rods. Position of the substrate during the growth of crystal was found to be important to obtain well aligned crystal. The crystals that were grown near the negative electrode had the best properties. Photoluminescence measurement at room temperature revealed sharp peaks at around 360 and 380 nm and a broad peak around 420 nm that indicated good properties of ZnO crystals grown with external electric field.

Preparation of vertically aligned ZnO crystal rods in aqueous solution at external electric field

Inorganic and Physical Chemistry Research Division, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung, 40132, Indonesia

Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Bengkulu, Jl. WR Supratman, Bengkulu, Indonesia

Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Jember, Jl. Kalimantan 37, Jember, Indonesia

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

In this study, an external electric field was used to facilitate the growth of vertically aligned ZnO crystal rods on the surface of indium tin oxide (ITO)...

Preparation of vertically aligned ZnO crystal rods in aqueous solution at external electric field

Published Online: Jul 22, 2014

Page range: 157 - 163

DOI: https://doi.org/10.2478/s13536-013-0191-8

Keywords
aqueous solution deposition, ZnO rods, external electric fields, photoluminescence

© 2014 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Preparation of vertically aligned ZnO crystal rods in aqueous solution at external electric field

Published Online: Jul 22, 2014

Page range: 157 - 163

DOI: https://doi.org/10.2478/s13536-013-0191-8

Keywordsaqueous solution deposition, ZnO rods, external electric fields, photoluminescence

© 2014 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
aqueous solution deposition, ZnO rods, external electric fields, photoluminescence