Fabrication and characterization of macroporous TiO2 films by photo polymerization-induced phase separation method

2010 ◽  
Vol 64 (19) ◽  
pp. 2049-2052 ◽  
Author(s):  
Jianxi Yao ◽  
Hongxing Tian ◽  
Masahide Takahashi ◽  
Toshinobu Yoko
Keyword(s):  
Phase Separation ◽  
Separation Method ◽  
Tio2 Films ◽  
Photo Polymerization ◽  
Fabrication And Characterization ◽  
Polymerization Induced Phase Separation

Fabrication and Characterization of Ferroelectric Polymer/TiO2/Al-doped ZnO Structures

2008 ◽  
Vol 1071 ◽  
Author(s):  
Koji Aizawa
Keyword(s):  
Leakage Current ◽  
Vinylidene Fluoride ◽  
Ferroelectric Properties ◽  
Hysteresis Loops ◽  
Tio2 Films ◽  
Gate Leakage Current ◽  
Poly Vinylidene Fluoride ◽  
Doped Zno ◽  
Fabrication And Characterization

AbstractCharacterization of 700-nm-thick poly(vinylidene fluoride/trifluoroethylene) [P(VDF/TrFE)]/TiO2/Al-doped ZnO (AZO) structures on a glass substrate were investigated. In this study, the sputtered TiO2 films as insulator were used for the reduction of leakage current. The leakage current density of the fabricated Pt/P(VDF/TrFE)/AZO and Pt/P(VDF/TrFE)/170-nm-thick TiO2/AZO structures were approximately 8.7 and 3.9 nA/cm2 at the applied voltage of 10 V, respectively. In the polarization vs. voltage characteristics, the fabricated Pt/P(VDF/TrFE)/TiO2/AZO structures showed hysteresis loops caused by ferroelectric polarization. The remnant polarization (2Pr) and coercive voltage (2Vc) measured from a saturated hysteresis loop at the frequency of 50 Hz were approximately 12 μC/cm2 and 105 V, respectively. These results suggest that the insertion of TiO2 film is available for reducing the gate leakage current without changing the ferroelectric properties.

Fabrication and characterization of brookite-rich, visible light-active TiO2 films for water splitting

2009 ◽  
Vol 93 (1-2) ◽  
pp. 90-95 ◽  
Author(s):  
Hui Pan ◽  
Xiaofeng Qiu ◽  
Ilia N. Ivanov ◽  
Harry M. Meyer ◽  
Wei Wang ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Tio2 Films ◽  
Visible Light Active ◽  
Fabrication And Characterization

Fabrication and characterization of polylactic acid/polycaprolactone composite macroporous micro-nanofiber scaffolds by phase separation

2020 ◽  
Vol 44 (40) ◽  
pp. 17382-17390
Author(s):  
Shuqiong Liu ◽  
Yuying Zheng ◽  
Jiapeng Hu ◽  
Zhenzeng Wu ◽  
Houwen Chen
Keyword(s):  
Phase Separation ◽  
Polylactic Acid ◽  
Macroporous Structure ◽  
Nanofiber Scaffolds ◽  
Fabrication And Characterization

By using incompatible polymers, the preparation of scaffolds with a macroporous structure has overcome the use of porogens and carcinogenic solvents.

An Analysis of the Photo-Polymerization Induced Phase Separation Process in Liquid Crystal/Polymer Composite Films

1999 ◽  
Vol 559 ◽  
Author(s):  
Toru Fujisawa ◽  
Masanao Hayasi ◽  
Hidetoshi Nakada ◽  
Sigeru Matumoto ◽  
Yuitiro Tani ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Phase Separation ◽  
Polymer Composite ◽  
Composite Films ◽  
Liquid Crystal Polymer ◽  
Separation Process ◽  
Photo Polymerization ◽  
Crystal Polymer ◽  
Phase Separation Process ◽  
Polymerization Induced Phase Separation

ABSTRACTWe have analyzed the micro-phase separation during photo-polymerization in the liquid crystal/polymer composite films for a variety of light-control applications. The photo-polymerization induced phase separation process is remarkably affected by the reactivity in diacrylates and the fraction volume in liquid crystals. It is presumed that the nematic transition in a liquid crystal-rich phase and the reactivity play an important role to determine the morphology.

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