研究目的
To synthesize poly-crystalline In2O3-ZnGa2O4 nanocomposites via hydrothermal method and investigate their application in IGZO ceramics for thin film transistors.
研究成果
Polycrystalline In2O3-ZnGa2O4 nanocomposites were successfully synthesized by hydrothermal method. The nanocomposites showed high crystallinity with increasing hydrothermal temperature. The IGZO ceramics prepared from these nanocomposites exhibited high relative density and low resistivity, making them suitable for high-performance IGZO thin films.
研究不足
The study focuses on the hydrothermal synthesis of In2O3-ZnGa2O4 nanocomposites and their application in IGZO ceramics. The limitations include the need for high-temperature treatment for polycrystalline nanocomposites and the influence of pH and temperature on morphology.
1：Experimental Design and Method Selection:
Hydrothermal synthesis was chosen for the preparation of In2O3-ZnGa2O4 nanocomposites. The effects of hydrothermal temperature and pH value on the properties of the nanocomposites were investigated.
2：Sample Selection and Data Sources:
Metal indium, gallium, and zinc (
3：99% purity) were dissolved in nitric acid to prepare In(NO3)3, Ga(NO3)3, and Zn(NO3)2 solutions, respectively. List of Experimental Equipment and Materials:
Teflon-lined autoclave, SEM (Quanta 250 FEG), TEM (FEI Tecnai G220), X-ray diffraction (D8, Bruker), thermomechanical analyzer (PCY-1600).
4：0). Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: The mixed solution of In(NO3)3, Ga(NO3)3, and Zn(NO3)2 was hydrothermally treated at 120~210 °C for 12 h. The precursors were calcined at 550 °C for 2 h. IGZO ceramics were prepared by sintering at 1450 °C for 5 h.
5：Data Analysis Methods:
XRD for phase identification, SEM and TEM for morphology characterization, TG-DSC for thermal analysis, and four-point probe for resistivity measurement.
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