Crack-free TiO2 films prepared by adjusting processing parameters via liquid phase deposition technique

TiO 2 thin films with controllable morphology and grain size were prepared via a liquid phase deposition (LPD) technique. The effects of the processing parameters including the (NH 4 ) 2 TiF 6 concentration, solution pH, and (NH 4 ) 2 TiF 6 :H 3 BO 3 molar ratio on the grain size and morphology of t...

Full description

Saved in:
Bibliographic Details
Published inHanʼguk Seramik Hakhoe chi Vol. 57; no. 2; pp. 206 - 212
Main Authors Li, Jie, Xu, Hai-Yan, Wang, Ai-Guo, Zhang, Feng-Jun, Sun, Dao-Sheng, Oh, Won-Chun
Format Journal Article
LanguageEnglish
Published Singapore Springer Singapore 01.03.2020
Subjects
Ceramics
Chemistry and Materials Science
Composites
Glass
Materials Science
Natural Materials
Original Article
thin film
Crack-free
TiO
Morphology control
Size control
Online AccessGet full text

Cover

More Information
Summary:TiO 2 thin films with controllable morphology and grain size were prepared via a liquid phase deposition (LPD) technique. The effects of the processing parameters including the (NH 4 ) 2 TiF 6 concentration, solution pH, and (NH 4 ) 2 TiF 6 :H 3 BO 3 molar ratio on the grain size and morphology of the films were investigated. The prepared samples were characterized by X-ray diffraction, scanning electron microscopy, and ultraviolet–visible spectroscopy. The results showed that the deposition parameters significantly affected the growth and nucleation velocities of the crystalline grains, which resulted in the formation of TiO 2 films with different morphologies and grain sizes. The capillary stress among the grains of the film, which resulted in the cracking of the film, depended on the size of the grains. Thus, the cracking of the LPD-derived TiO 2 films could be mitigated by adjusting the deposition parameters.
ISSN:1229-7801
2234-0491
DOI:10.1007/s43207-020-00019-y