研究目的
Investigating the synthesis, microstructure, and optical properties of ZnO/Zn(S,O) heterostructure nanorods.
研究成果
ZnO/Zn(S,O) heterostructure nanorods with good alignment have been synthesized, featuring a typical heterojunction structure with the bottom ZnS rich and the top ZnO rich. These nanorods show continuous composition gradient in the interface and exhibit peculiar optical properties, holding promising applications in high-performance optoelectronic nanodevices and clean energy.
研究不足
The study focuses on the synthesis and characterization of ZnO/Zn(S,O) heterostructure nanorods, but the practical applications in optoelectronic devices are not extensively explored.
1：Experimental Design and Method Selection:
The growth of aligned ZnO/Zn(S,O) heterostructure nanorods is carried out in a conventional horizontal electrical resistance furnace, using high purity ZnS and ZnO powders as precursors.
2：Sample Selection and Data Sources:
A piece of Si wafer with chemically polished surface is used as the substrate.
3：List of Experimental Equipment and Materials:
X-ray diffractrometer (XRD, Rigaku RINT 2000), scanning electron microscope [SEM, JEOL, JSM-6700F], high-resolution field-emission transmission electron microscope [TEM, FEI, Tecnai G2 F20] equipped with an X-ray energy dispersive spectrometer (EDS).
4：Experimental Procedures and Operational Workflow:
The quartz tube is pumped to get a vacuum of 10^-2 Pa and stable Ar flux is introduced. The temperature is increased to 1050 °C and maintained for 30 min.
5：Data Analysis Methods:
The structure, morphology, microstructures and composition of the as-grown nanostructures are analyzed by XRD, SEM, and TEM.
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X-ray diffractrometer
RINT 2000
Rigaku
Analyzing the structure of the as-grown nanostructures
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scanning electron microscope
JSM-6700F
JEOL
Analyzing the morphology of the as-grown nanostructures
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high-resolution field-emission transmission electron microscope
Tecnai G2 F20
FEI
Analyzing the microstructures of the as-grown nanostructures
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X-ray energy dispersive spectrometer
Analyzing the composition of the as-grown nanostructures
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