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<p>The present study focuses on the thermal stability of homeotropic alignment (HA) of liquid crystals (LCs) induced with zinc oxide (ZnO) nanoparticles (NPs) and explores the robustness of NP-induced HA under varying thermal conditions. Therefore, the morphological and electro-optical (E-O) properties are analyzed across a temperature range of 20–60°C, emphasizing the preservation of uniform alignment and device functionality. The results demonstrate that NP doping not only facilitates HA but also maintains it consistently at elevated temperatures. The prepared display cells with HA of LCs show reduced threshold (<i>V</i><sub>T</sub>) and operating (<i>V</i><sub>O</sub>) voltages and minor deterioration in contrast ratio at higher temperature. The findings confirm the thermal reliability of NP-induced HA of LCs for high-temperature optoelectronic applications.</p>

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Thermal Stability of Homeotropic Alignment of Liquid Crystals Induced by Nanoparticles for Display Applications

  • 期刊论文

  • 发表日期：

    2026年1月7日

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  • Chinky,
  • Vandna Sharma,
  • Parul Malik,
  • Pankaj Kumar

摘要

The present study focuses on the thermal stability of homeotropic alignment (HA) of liquid crystals (LCs) induced with zinc oxide (ZnO) nanoparticles (NPs) and explores the robustness of NP-induced HA under varying thermal conditions. Therefore, the morphological and electro-optical (E-O) properties are analyzed across a temperature range of 20–60°C, emphasizing the preservation of uniform alignment and device functionality. The results demonstrate that NP doping not only facilitates HA but also maintains it consistently at elevated temperatures. The prepared display cells with HA of LCs show reduced threshold (VT) and operating (VO) voltages and minor deterioration in contrast ratio at higher temperature. The findings confirm the thermal reliability of NP-induced HA of LCs for high-temperature optoelectronic applications.