研究目的
Investigating the fabrication and performance of a coupling heterostructure consisting of nickel oxide nanosheets (NNS) and titanium dioxide nanorod arrays (TNAs) for self-powered solid-state ultraviolet (UV) photosensor applications.
研究成果
The fabricated NNS/TNAs heterojunction showed improved photocurrent with increasing NNS thickness up to an optimum level, demonstrating potential for self-powered UV photosensor applications. The best performance was achieved with a NNS thickness of 170 nm, prepared with a 3 h growth time.
研究不足
The study is limited by the technical constraints of the immersion route method and the potential for optimization in the thickness control of the NNS layer to further enhance the UV photoresponse properties.
1：Experimental Design and Method Selection:
The study involved the fabrication of NNS/TNAs heterojunction films via an immersion route, controlling the thickness of the NNS layer by varying the growth time.
2：Sample Selection and Data Sources:
TNAs were synthesized on FTO-coated glass substrates, and NNS were deposited on TNAs with varying thicknesses.
3：List of Experimental Equipment and Materials:
FESEM (JEOL JSM-7600F), XRD (Shimadzu XRD-6000), UV–Vis-NIR spectrophotometry (Cary 5000), DC two-probing system semiconductor device analyzer (Keysight B1500A), UV photocurrent measurement system (Keithley 2400).
4：0). Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: TNAs were synthesized using an aqueous chemical method, and NNS were deposited via immersion at 90 °C for varying times. The samples were characterized for structural, optical, and electrical properties.
5：Data Analysis Methods:
The photocurrent properties were measured under UV irradiation, and the data were analyzed to determine the performance of the UV photosensor.
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