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Controlling the Pretilt Angles of Guest–Host Liquid Crystals via a Hydrophilic Polyimide Layer through Oxygen Plasma Treatment AITranslate

Yuge Liang; Yumeng Wang; Mengmeng Zhu; Longzhen Qiu; Jun Zhu; Bo Zhang; Ying Liu; Hongbo Lu; Miao Xu
Hefei University of Technology; Hefei University of Technology; Hefei University of Technology; Hefei University of Technology; Hefei University of Technology; AVIC Beijing Aeronautic Manufacturing Technology Research Institute; AVIC Beijing Aeronautic Manufacturing Technology Research Institute; Hefei University of Technology; Hefei University of Technology
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Publisher: ACS
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Abstract AITranslate

The control of the liquid crystal (LC) alignment is an important factor for practical applications. The conventional method typically used is the rubbing of the polyimide (PI) layer. However, it is difficult to obtain intermediate pretilt angles by employing such a method. In this paper, control of the pretilt angle of the LC is achieved by modifying the surface wettability of the PI films via oxygen plasma treatment. A new mode for guest–host liquid crystal (GHLC) smart windows is achieved with intermediate initial transmittance by controlling the pretilt angle, which can turn from the initial state to either the transparent or dark states. Different modes for the GHLC-based smart windows can be fabricated that are dependent on the environmental conditions.

KeyWords AITranslate

pretilt angle liquid crystal alignment guest−host liquid crystals wettability liquid crystal displays smart window
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Basic Information:

DOI：https://doi.org/10.1021/acsaelm.2c00868

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Citation Information:

The control of the liquid crystal (LC) alignment is an important factor for practical applications. The conventional method typically used is the rubbing of the polyimide (PI) layer. However, it is difficult to obtain intermediate pretilt angles by employing such a method. In this paper, control of the pretilt angle of the LC is achieved by modifying the surface wettability of the PI films via oxygen plasma treatment. A new mode for guest–host liquid crystal (GHLC) smart windows is achieved with intermediate initial transmittance by controlling the pretilt angle, which can turn from the initial state to either the transparent or dark states. Different modes for the GHLC-based smart windows can be fabricated that are dependent on the environmental conditions.

quote

GB/T 7714-2015 [1] Yuge Liang, Yumeng Wang, Mengmeng Zhu, et al. ACS Applied Electronic Materials, 2022(4). DOI:10.1021/acsaelm.2c00868.
MLA [1] Yuge Liang, et al., ACS Applied Electronic Materials, no. 4, 2022, https://doi.org/10.1021/acsaelm.2c00868.
APA [1] Yuge Liang, Yumeng Wang, Mengmeng Zhu, Longzhen Qiu, Jun Zhu, Bo Zhang, Ying Liu, Hongbo Lu, & Miao Xu. (2022). ACS Applied Electronic Materials(4). https://doi.org/10.1021/acsaelm.2c00868
IEEE [1] Yuge Liang, Yumeng Wang, Mengmeng Zhu, Longzhen Qiu, Jun Zhu, Bo Zhang, Ying Liu, Hongbo Lu, and Miao Xu, ACS Applied Electronic Materials, no. 4, 2022, doi: 10.1021/acsaelm.2c00868. keywords: {pretilt angle liquid crystal alignment guest−host liquid crystals wettability liquid crystal displays smart window}