期刊
CERAMICS INTERNATIONAL
卷 40, 期 1, 页码 2209-2220出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2013.07.139
关键词
Electron microscopy; Optical properties; Sol-gel method; PEG doped TiO2
资金
- Romanian National Agency of Scientific Research [274/2010]
- EU (ERDF)
- Romanian Government [19/01.03.2009]
- [PN-II-ID-PCE-2011-3-0446]
Multilayered titania (TiO2) films have been prepared via sol-gel dip-coating method from a tetraethyl-orthotitanate solution that contains 2 g of polyethylene glycol (PEG) with different molecular weight (6000, 20,000 and 35,000). The films. were deposited on fluorine doped tin oxide (FTO) coated glass and annealed by a thermal treatment at 450 degrees C for 30 min. We demonstrated how the structure, the morphology and the optical properties of the films can be controlled by varying the PEG molecular weight and number of depositions. The correlation between these parameters and the film properties was investigated. Sol-gel deposited and PEG doped TiO2 films demonstrate better properties for their use in solar cell applications, by enhancing the transmittance value in the 380-540 nm range. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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