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Improving the light extraction efficiency is one of the key technologies for high brightness LED packaging, and is of great importance for the semiconductor illumination industry. Due to the large refractive index (RI) difference between LED chip and outside medium, the light will be trapped in the LED, convert into heat, and further lower the conversion efficiency. Encapsulants such as epoxy and...
Nanocomposites have attracted tremendous interest for advanced electronic packaging applications due to their superior electrical, thermal and optical properties. The dispersion of nanometer sized fillers in a polymer matrix, however, is very challenging in the preparation of these nanocomposites, because the nanoparticles have a strong tendency to aggregate. An objective and accurate dispersion analysis...
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