Abstract In this article, mesoporous ZnO/ZnAl2O4 mixed metal oxide (MMO) based Zn/Al layered double hydroxide (LDH) was prepared via modified co-precipitation and thermal reduction methods for visible light photodetector. A series of photodetectors were assembled using the corresponding mesoporous MMO attended with Ruthenizer dye as visible light sensitizer (535-bisTBA). Particularly, the amount of dye loaded onto the mesoporous layers was estimated through UV–Vis analysis-based regression equation, which provides a solid correlation with the fabricated device's photo-responsive performance. Simultaneously, a considerable photo-responsivity and specific photo-detectivity of the fabricated device was perceived. This could be attributed to the significant BET surface area (53 m2/g) as well as high loaded amount of dye on the prepared mesoporous layer (0.33 mMol/cm−2). In detail, the photo-responsivity and specific photo-detectivity for ZA-400 photodetector were found to be within the range of 11 mA/mW and 1011 jones, respectively; in which a superior photo-responsive behavior was acquired as compared to similar geometries. The optimum device (ZA-400) exhibited an approximate response time of 900 m s. In addition to the consistency and robustness of the proposed photodetector, this work offers an alternative approach for eco-friendly optoelectronic design.

中文翻译：

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介孔ZnO/ZnAl2O4混合金属氧化物基Zn/Al层状双氢氧化物作为可见光光电探测器的有效阳极材料

摘要 本文采用改进的共沉淀法和热还原法制备了用于可见光光电探测器的介孔ZnO/ZnAl2O4混合金属氧化物(MMO)基Zn/Al层状双氢氧化物(LDH)。使用相应的介孔 MMO 和 Ruthenizer 染料作为可见光敏化剂（535-bisTBA）组装一系列光电探测器。特别是，加载到介孔层上的染料量是通过基于 UV-Vis 分析的回归方程估算的，这与制造的器件的光响应性能有很强的相关性。同时，感知到所制造设备的相当大的光响应性和特定的光检测性。这可能归因于显着的 BET 表面积 (53 m2/g) 以及制备的介孔层上的高负载量染料 (0.33 mMol/cm-2)。具体而言，ZA-400 光电探测器的光响应度和比光探测率分别在 11 mA/mW 和 1011 琼斯范围内；其中与类似的几何形状相比，获得了优越的光响应行为。最佳设备 (ZA-400) 的响应时间约为 900 毫秒。除了所提出的光电探测器的一致性和鲁棒性之外，这项工作还提供了一种环保光电设计的替代方法。其中与类似的几何形状相比，获得了优越的光响应行为。最佳设备 (ZA-400) 的响应时间约为 900 毫秒。除了所提出的光电探测器的一致性和鲁棒性之外，这项工作还提供了一种环保光电设计的替代方法。其中与类似的几何形状相比，获得了优越的光响应行为。最佳设备 (ZA-400) 的响应时间约为 900 毫秒。除了所提出的光电探测器的一致性和鲁棒性之外，这项工作还提供了一种环保光电设计的替代方法。