https://doi.org/10.1140/epjp/s13360-024-05110-5
Regular Article
Electro-optical properties of solution-processed aluminum–nickel oxide film containing graphene oxide in liquid crystal system
1
IT Nano Electronic Device Laboratory, Department of Electrical and Electronic Engineering, Yonsei University, Seodaemun-gu, 120-749, Seoul, Republic of Korea
2
National Center for Nanoprocess and Equipment, Korea Institute of Industrial Technology, 6 Cheomdangwagi-ro 208beon-gil, Buk-gu, 500-480, Gwangju, Republic of Korea
3
Department of Electronic Engineering, Cheongju University, 298 Daesung-ro, 28503, Cheongju, Republic of Korea
4
Department of Electrical and Electronic Engineering, Jeonju University, 303 Cheonjam-ro, Wansan-gu, 55069, Jeonju-si, Jeollabuk-do, Republic of Korea
g
dongwlee@jj.ac.kr
h
dsseo@yonsei.ac.kr
Received:
12
January
2024
Accepted:
19
March
2024
Published online:
3
April
2024
Aluminum–nickel oxide and graphene oxide hybrid films are investigated in this study. The films produced via solution processing were doped with GO at three concentrations: 0, 5, and 15 wt%. The optical transmittances of the produced hybrid AlNiO films were examined for liquid crystal device applications, and their chemical properties were assessed via X-ray photoelectron spectroscopy. Atomic force microscopy and line profiling were used to examine the film surfaces. Polarized optical microscopy and pretilt angle analysis were used to confirm the uniform and homogeneous LC alignment on the hybrid AlNiO layer. The anisotropic oriented nano/microgroove structures on the surfaces of the films are believed to be due to the shear stress generated by the brush-coating process. LC cells assembled using the hybrid films showed stabler and faster switching performances with increasing GO doping. GO doping of the pure AlNiO film was also noted to increase the LC polar anchoring energy.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
