研究目的
Investigating the effects of Ag nanoparticles localized surface plasmons (LSPs) on the performance of dual-wavelength UV photodetectors with a sandwich structure of ZnO/Au/MgZnO/SiO2.
研究成果
The study demonstrated that embedding Ag NPs between the MgZnO and ZnO films significantly improves the performance of dual-wavelength UV PDs, with the MgZnO/Au/Ag NPs/ZnO sandwich structure showing the best performance. The LSPs of Ag NPs energy matched with MgZnO, which was superior to ZnO, providing a method for tuning the responsivity of UV PDs by modifying Ag NPs decorating position.
研究不足
The study is limited to the effects of Ag NPs on the performance of dual-wavelength UV PDs with a specific sandwich structure. The optimization of Ag NP position and its coupling effects with ZnO and MgZnO films are the main focus, potentially overlooking other factors that could influence PD performance.
1：Experimental Design and Method Selection:
The study focused on the fabrication and investigation of dual-wavelength UV photodetectors with a sandwich structure of ZnO/Au/MgZnO/SiO2, emphasizing the effects of Ag nanoparticles localized surface plasmons (LSPs).
2：Sample Selection and Data Sources:
The PDs were prepared on quartz substrates, with MgZnO and ZnO films deposited by RF magnetron sputtering technique. Ag NPs were fabricated by direct current (DC) magnetron sputtering.
3：List of Experimental Equipment and Materials:
Quartz substrates, RF magnetron sputtering system, DC magnetron sputtering system, Ag NPs, ZnO and MgZnO films.
4：Experimental Procedures and Operational Workflow:
The substrates were cleaned, followed by the deposition of MgZnO and ZnO films. Ag NPs were then sputtered onto the films, with their position adjusted to study the effects on PD performance.
5：Data Analysis Methods:
The performance of the PDs was analyzed through XRD, absorption measurements, Hall effect measurements, I-V characteristics, and spectral responses.
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