Preparation of highly stable TiO2 sols and nanocrystalline TiO2 films via a low temperature sol-gel route

被引：33
作者：
Katoch, Akash [1 ]
Kim, Hohyeong [2 ]
Hwang, Taejin [2 ]
Kim, Sang Sub [1 ]
机构：
[1] Inha Univ, Sch Mat Sci & Engn, Inchon 402751, South Korea
[2] Korea Inst Ind Technol, Surface Technol & Heat Treatment R&D Div, Inchon 406840, South Korea
来源：
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2012年 / 61卷 / 01期
关键词：
Nanocrystalline TiO2 film; Sol-gel; Low temperature deposition; Stable TiO2 sol; PULSED-LASER DEPOSITION; THIN-FILMS; TITANIA NANOPARTICLES; PHASE-TRANSFORMATION; PEPTIZATION; FABRICATION;
D O I：
10.1007/s10971-011-2593-6
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Highly stable TiO2 sols were prepared by adjusting the water-to-titanium molar ratio to similar to 4 in the process of hydrolysis and condensation of titanium isopropoxide in ethanol with HNO3. Particularly, long-term stable TiO2 sols were prepared without adding any chemical additives. Anatase TiO2 nanocrystallites with sizes of 3-5 nm in diameter were uniformly dispersed in the stable sol. Crystallized TiO2 films were successfully deposited on Si (100) using the stable sol via a dip-coating process with low temperature curing at as low as 100 degrees C. The synthesized TiO2 sols and films are promising for use in flexible or dye-sensitized solar cells.
引用
收藏
页码：77 / 82
页数：6
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