A TiO2/porous silicon (PS) composite system is prepared by chemical vapor deposition. The crystal form with anatase phase of the samples is evaluated by X-ray diffraction and ultraviolet-visible (UV-vis) absorbance spectra, and the morphology with microsphere of TiO2 particles is characterized by scanning electron microscopy. The composite system formed by this technique gives a broad blue luminescence and the mechanism of photoluminescence with TiO2/PS is also discussed.
© 2010 Chinese Optics Letters
Xiaoyi Lv, Junwei Hou, Mei Xiang, Zhenhong Jia, and Furu Zhong, "Preparation and photoluminescence of TiO2/PS composite system," Chin. Opt. Lett. 8, 618-620 (2010)