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Tunable electrical properties of carbon dot doped photo-responsive azobenzene–clay nanocomposites

机译：碳点掺杂光响应偶氮苯并粘土复合材料的可调谐电性能

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The development of photo-responsive nanocomposite materials is important in the fabrication of optoelectronic devices. In this work, we fabricated a carbon dot doped azobenzene–clay nanocomposite which possesses different ac conductivity with and without UV treatment. At first, azobenzene nanoclusters were synthesised and then successfully used to make an azobenzene–clay nanocomposite. It was observed that there is a small change in the ac conductivity of the azobenzene–clay nanocomposite with and without UV treatment. However, this change in ac photoconductivity can be enhanced in the azobenzene–clay nanocomposite by doping with electron-rich cysteine and methionine carbon dots. Hence, ac conductivity properties of the carbon-doped azobenzene–clay nanocomposite can be tuned using UV light. Impedance measurements were determined using Electrochemical Impedance Spectroscopy. Mechanistic insight into the phenomenon is also discussed in the paper. Thus fabrication of tunable carbon dot doped photo-responsive azobenzene–clay nanocomposites will lead to the use of carbon dot doped azobenzene–clay nanocomposites in photo-switchable optoelectronic devices.
机译：光响应纳米复合材料的开发在光电器件的制造中是重要的。在这项工作中，我们制造了一种掺杂的偶氮粘土纳米复合材料，其具有不同的AC电导率和无紫外线处理。首先，合成偶氮烯纳米蛋白，然后成功地用于制备亚非苯并粘土纳米复合材料。观察到偶氮苯粘土纳米复合材料的AC电导率有很小的变化，具有和不含UV处理。然而，通过掺杂富含电子的半胱氨酸和蛋氨酸碳点，可以在偶氮苯并纳米核复合材料中提高AC光电导性的这种变化。因此，可以使用UV光调节碳掺杂的偶氮苯并粘土纳米复合材料的AC电导率。使用电化学阻抗光谱法测定阻抗测量。本文还讨论了对现象的机械洞察力。因此，可调谐碳点掺杂光响应偶氮苯 - 粘土纳米复合材料的制备将导致在光可切换光电器件中使用碳点掺杂的偶氮亚克拉粘土复合材料。

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