Acta Optica Sinica, Volume. 30, Issue 6, 1841(2010)
Influence of Ions Doping on the Optical Properties of Mesoporous TiO2 thin Films
Ion-doped mesoporous TiO2 thin films with regular mesoporous structure ware successfully prepared through the sol-gel method and spin-coating. The Zn2+,Fe3+-doped TiO2 thin films exhibit mesoporous structure with pore size of 7-9 nm,and the Y3+-doped TiO2 thin films exhibit mesoporous structure with larger pore size of 10.9 nm,which characterized by small angle X-ray diffraction patterns and TEM photographs. Optical properties were studied through the thin film transmission spectra of three kind of metal-doped mesoporous TiO2 thin films,and the refractive index of the films were fitted by Swanepoel envelope method. It can be found that after doping with Fe3+,optical absorption edge of mesoporous TiO2 thin-films was obviously broadened;and Y3+ dopants protects the collapse of mesoporous structure from the excessive growth of TiO2 nanocrystalline,offering a help to obtain mesoporous thin-films with large pore size.
Get Citation
Copy Citation Text
Zhang Yun, Shen Yue, Gu Feng, Zhang Jiancheng, Wang Linjun, Xia Yiben. Influence of Ions Doping on the Optical Properties of Mesoporous TiO2 thin Films[J]. Acta Optica Sinica, 2010, 30(6): 1841
Category: Thin Films
Received: Jun. 22, 2009
Accepted: --
Published Online: Jun. 7, 2010
The Author Email: Yun Zhang (yunzhang@shu.edu.cn)