摘要
Quantum dot (QD) materials offer tunable emission wavelengths, high color purity, and compatibility with solution-based processing, making them promising for next-generation display technologies. Quantum dot color converters (QDCCs) provide advantages such as long lifetime, wide color gamut, high efficiency, and energy savings, making them suitable for miniLED or microLED displays. However, enhancing the light conversion efficiency (LCE) of QDCCs remains a significant challenge. In this study, silica-coated titanium dioxide (TiO2) nanoparticles were introduced to improve blue light scattering and absorption, thereby enhancing the overall efficiency of QDCCs. The optimized silica coating process, achieved via the Stöber reaction, significantly improved the colloidal stability and dispersion of TiO2 nanoparticles. Results showed that incorporating SiO2-coated TiO2 increased the LCE of QDCC films by 154.6% compared to films without TiO₂ and by 49.7% compared to films with uncoated TiO2. These findings demonstrate that SiO2-coated TiO2 nanoparticles effectively enhance QDCC performance, offering a promising strategy for high-efficiency quantum dot-based color conversion displays.