Chinese Journal of Liquid Crystals and Displays, Volume. 40, Issue 5, 665(2025)

Optical memory behavior of MoS2 nanoflakes doped liquid crystals hybrid

Xiaohui GONG, Hao ZHANG, Dongfang YANG, and Yang LIU*
Author Affiliations
  • College of Information Science and Technology,Donghua University,Shanghai 201620,China
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    Figures & Tables(8)
    (a)Transmittance versus voltage,and(b)transmittance versus time of the VA cells fabricated from various of MoS2 doped LCs.
    POM images of the LCs driven by an external voltage of 5 V and 60 Hz
    POM images of the MoS2 nanoflakes doped LCs driven by an external voltage of 5 V and 60 Hz at the mass fraction of(a)0.01%,(b)0.05% and(c)0.1%,respectively.
    POM images of the LCs driven by an external voltage of 10 V and 60 Hz
    POM images of the MoS2 nanoflakes doped LCs driven by an external voltage of 10 V and 60 Hz at the concentrations(mass fraction)of(a)0.01%,(b)0.05% and(c)0.1%,respectively.
    Generated electric field surrounding the homogeneously aligned MoS₂ nanoflakes in LCs host under the influence of an external voltage. The thickness of the MoS‍₂ nanoflakes was found to be 90 nm and 2 μm,respectively,while the surface area was determined to be 2 μm × 2 μm,4 μm × 4 μm,and 6 μm × 6 μm. The external voltage was 5 V and 10 V at a frequency of 60 Hz.
    Generated electric field surrounding the homeotropically aligned MoS‍₂ nanoflakes in LCs host under the influence of an external voltage. The thickness of the MoS₂ nanoflakes was found to be 90 nm and 2 μm,respectively,while the surface area was determined to be 2 μm × 2 μm,4 μm × 4 μm,and 6 μm × 6 μm. The external voltage was 5 V and 10 V at a frequency of 60 Hz.
    • Table 1. Exact threshold voltage and response time of the VA cells fabricated from various of MoS2 doped LCs,in which τd is the time since the external voltage has been applied on the cell until the cell get a 10% transparency;τs is the time since the external voltage has been removed until the cell get a 90% transparency;τr is the time cell get a transparency change from 10% to 90%;τf is the time cell get a transparency change from 90% to 10%;τon=τd+τrτoff=τs+τf,and τtotal=τon+τoff .

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      Table 1. Exact threshold voltage and response time of the VA cells fabricated from various of MoS2 doped LCs,in which τd is the time since the external voltage has been applied on the cell until the cell get a 10% transparency;τs is the time since the external voltage has been removed until the cell get a 90% transparency;τr is the time cell get a transparency change from 10% to 90%;τf is the time cell get a transparency change from 90% to 10%;τon=τd+τrτoff=τs+τf,and τtotal=τon+τoff .

      ParametersMass fraction of MoS2
      00.01%0.05%0.10%
      Vth/V4.714.253.903.94
      τd/ms30.6529.1428.4032.72
      τs/ms3.503.623.516.21
      τr/ms56.5664.3670.6263.62
      τf/ms20.1719.9120.0323.99
      τon/ms87.2493.5099.0296.35
      τoff/ms23.6823.5323.5430.20
      τtotal/ms110.92117.02122.56126.54
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    Xiaohui GONG, Hao ZHANG, Dongfang YANG, Yang LIU. Optical memory behavior of MoS2 nanoflakes doped liquid crystals hybrid[J]. Chinese Journal of Liquid Crystals and Displays, 2025, 40(5): 665

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    Paper Information

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    Received: Dec. 16, 2024

    Accepted: --

    Published Online: Jun. 18, 2025

    The Author Email: Yang LIU (liuyang@dhu.edu.cn)

    DOI:10.37188/CJLCD.2024-0348

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