研究目的
Developing soluble hole injection materials with specific optical properties for OLED displays and materials with deeper ionization potential for QLED displays.
研究成果
Developed soluble HIMs with different refractive indices for TE-OLED displays and a HIM with deep ionization potential for QLED displays. Demonstrated promising device performance in BE-hybrid OLED devices using these materials.
研究不足
The extinction coefficient of the films needs improvement for application in TE-OLED displays. Film thickness dependence of current density for certain HIMs requires optimization.
1：Experimental Design and Method Selection:
Developed HIM solid compositions with different refractive indices and ionization potentials.
2：Sample Selection and Data Sources:
Used HIM1, HIM2, HIM3, and HIM4 for film formation on quartz and ITO substrates.
3：List of Experimental Equipment and Materials:
Spectroscopic ellipsometer by J. A. Woollam Japan, spin coater, UV/O3 cleaner.
4：Experimental Procedures and Operational Workflow:
Films were formed by spin coating followed by baking under specific conditions. Optical and electrical properties were measured.
5：Data Analysis Methods:
Refractive indices and extinction coefficients were measured with spectroscopic ellipsometer. Current density, conductivity, and hole mobility were analyzed.
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