Preparation of oriented ZnO rod arrays using hexagonal plate-like particles as a seed layer

Koyasu Satoshi

Makino Hiroki

Tarutani Naoki

Suzuki Tohru

Uchikoshi Tetsuo

Ishigaki Takamasa

Langmuir

ZnO rod film is a promising material for electrodes and sensors due to its large surface area and high electrical conductivity. One of the drawbacks of conventional ZnO rod film is the random orientation of rods. In this study, an oriented ZnO seed layer composed of hexagonal plate-like ZnO particles was prepared by dip-coating. An oriented ZnO rod film was then synthesized by growing this seed layer using a hydrothermal synthesis method. We optimized the concentration of the precursor and the hydrothermal treatment time to synthesize homogeneous ZnO rod arrays. The uniformity of the rod arrays was improved by applying a strong magnetic field (12 T) during hydrothermal treatment.

eng

American Chemical Society

© 2022 American Chemical Society

This document is the Accepted Manuscript version of a Published Work that appeared in final form in Langmuir, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.langmuir.2c02734

This is not the published version. Please cite only the published version. この論文は出版社版ではありません。引用の際には出版社版をご確認、ご利用ください。

[ISSN] 1520-5827

[NCID] AA10461730

[DOI] 10.1021/acs.langmuir.2c02734

[DOI] https://doi.org/10.1021/acs.langmuir.2c02734