| 초록 |
TiO2 is has been intensively investigated due to its high refractive index and optical properties. Especially, rutile phase of TiO2 materials is useful because of its stability. However, rutile crystalline phase can be fabricated harsh condition like above 800 degree. Because of this condition, rutile TiO2 particles have problems to keep spherical shape during heat treatment. To address this problem, we have introduced carbon impurity between rutile nanocrystals. While phase transition from amorphous to rutile, rutile nanocrystals are produced but limited their grain size by carbon atoms. Therefore, we can demonstrate monodisperse and spherical rutile TiO2 microspheres. Additionally, we analyzed the Mie-scattering properties of this particle and explored its usability as optical materials. |
