Synthesis and Properties of p-Si/n-Cd1−xAgxO Heterostructure for Transparent Photodiode Devices
Source abstract
Abstract
We developed silver-doped Cd1–xAgxO thin films (where x = 0, 0.01, 0.02, 0.03 and 0.04) on amorphous glass substrate by an automated nebulizer spray pyrolysis set-up. The XRD patterns show rock salt cubic crystal structures, and the crystallite sizes vary with respect to Ag doping concentrations. SEM images exhibited a uniform distribution of grains with the addition of Ag; this feature could support the enhancement of electron mobility. The transmittance spectra reveal that all films show high transmittance in the visible region with the observed bandgap of about 2.40 eV. The room temperature photoluminescence (PL) studies show the increase of near-band-edge (NBE) emission of the films prepared by different Ag doping levels, resulting in respective decreases in the bandgaps. The photodiode performance was analyzed for the fabricated p-Si/n-Cd1–xAgxO devices. The responsivity, external quantum efficiency and detectivity of the prepared p-Si/n-Cd1–xAgxO device were investigated. The repeatability of the optimum (3 at.% Ag) photodiode was also studied. The present investigation suggests that Cd1–xAgxO thin films are the potential candidates for various industrial and photodetector applications.
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Research context
OpenAlex topics: ZnO doping and properties · Copper-based nanomaterials and applications · Chalcogenide Semiconductor Thin Films
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Physics, Sri Vidhya College of Arts and Science, Virudhunagar 626005, India
Shibaura Institute of Technology, College of Engineering, Saitama 337-8570, Japan
Department of Physics, Devanga Arts College, Arupukottai 626101, India
Department of Chemistry, VHNSN College, Virudhunagar Tamilnadu 626001, India
Department of Physics, Faculty of Science, King Khalid University, Abha 61413, Saudi Arabia
Physics Department, Faculty of Science, Al-Azher University, Assiut 71524, Egypt
Department of Physics, VHNSN College, Virudhunagar 626001, India
Funding
Deanship of Scientific Research - King Khalid University
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