This report demonstrates the visible photo response of gold nanoparticles (AuNPs) embedded ZnO nanocomposite (AuNPs-ZnO) thin films. The AuNPs-ZnO films were prepared by sandwiching DC sputtered AuNPs in between two RF sputtered ZnO layers deposited on p-Si. Crystal phase purity and surface morphology were characterized by the x-ray diffraction and scanning electron microscope. The formation of AuNPs was confirmed by observing the plasmonic dip in optical transmittance. Photoconductivity study was done by recording current–voltage characteristics of the films in the presence of visible light. The ratio of light to dark current was found to be enhanced by two to three orders of magnitude with the inclusion of AuNPs. The observed photocurrent enhancement was found to vary with both AuNPs concentration and sandwich thickness. The highest responsivity observed with the fabricated nanocomposite films was of 0.012 A W −1 . The dominant reason for the visible photoconductivity...

中文翻译：

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金纳米粒子嵌入的ZnO薄膜在光电探测器中的可见光光电导性研究

该报告证明了金纳米颗粒（AuNPs）嵌入的ZnO纳米复合材料（AuNPs-ZnO）薄膜的可见光响应。通过将直流溅射的AuNPs夹在沉积在p-Si上的两个RF溅射的ZnO层之间来制备AuNPs-ZnO膜。通过X射线衍射和扫描电子显微镜表征晶相纯度和表面形态。通过观察等离子体的光透射率下降来确认AuNP的形成。通过在可见光存在下记录薄膜的电流-电压特性来完成光电导性研究。发现通过包含AuNPs，明暗电流比提高了2-3个数量级。发现观察到的光电流增强随AuNPs浓度和夹心厚度两者而变化。用所制备的纳米复合膜观察到的最高响应度为0.012AW -1。可见光导电性的主要原因...