Different Adsorption States between Thiophene and α-Bithiophene Thin Films Prepared by Self-Assembly Method

Frictional characteristics of mesoporous SiO2 thin films were evaluated with different pore sizes. The films were manufactured by sol-gel and self-assembly methods to have a porous structure. The pores on the surface may play as the outlet of wear particle and the storage of lubricant so that the surface interactions could be improved. The pores were exposed on the surface by chemical mechanical polishing (CMP) or plasma-etching after forming the porous films. The ball-on-disk tests with mesoporous SiO2 thin films on glass specimen were conducted at sliding speed of 15rpm and a load of 0.26N. The results show considerable dependency of friction on pore size of mesoporous SiO2 thin films. The friction coefficient decreased as increasing the pore size. CMP process was very useful to expose the pores on the surface.

Download Full-text

Effect of the RE (RE=Eu, Er) doping on the structural and textural properties of mesoporous TiO2 thin films obtained by evaporation induced self-assembly method

Thin Solid Films ◽

10.1016/j.tsf.2014.03.002 ◽

2014 ◽

Vol 558 ◽

pp. 140-148 ◽

Cited By ~ 13

Author(s):

Mario Borlaf ◽

Sebastien Caes ◽

Jennifer Dewalque ◽

María Teresa Colomer ◽

Rodrigo Moreno ◽

...

Keyword(s):

Thin Films ◽

Self Assembly ◽

Textural Properties ◽

Mesoporous Tio2 ◽

Tio2 Thin Films ◽

Er Doping ◽

Assembly Method ◽

Evaporation Induced Self Assembly

Download Full-text

FABRICATION AND CHARACTERIZATION OF SPIN SELF-ASSEMBLED PPV/MONTMORILLONITE MULTILAYER THIN FILMS

Journal of Nonlinear Optical Physics & Materials ◽

10.1142/s0218863504002298 ◽

2004 ◽

Vol 13 (03n04) ◽

pp. 581-586

Author(s):

TAE-HO KIM ◽

O OK PARK

Keyword(s):

Thin Films ◽

Self Assembly ◽

Environmental Stability ◽

Phenylene Vinylene ◽

Multilayer Thin Films ◽

Layer By Layer ◽

Assembly Method ◽

Fabrication And Characterization ◽

Self Assembled

Multilayer nanostructural thin films through a layer-by-layer spin self-assembly method were prepared using poly(p-phenylene vinylene)/montmorillonite. Sodium montmorillonite particles exfoliated into single sheets and cationic PPV precursor and such anionic MMT plates were spin self-assembled by electrostatic attraction. Self-assembled MMT layers blocked the penetration of oxygen and moisture and they reduced the photo-oxidation of the emitting material. Spin self-assembled films showed higher environmental stability and luminescence, and their PL spectra were somewhat different from that of bulk PPV films.

Download Full-text

Synthesis and Characterization of TiO2 Thin Film by Self-Assembly Method

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.148-149.1500 ◽

2011 ◽

Vol 148-149 ◽

pp. 1500-1503

Author(s):

Wen Ning Mu ◽

Shuang Zhi Shi

Keyword(s):

Thin Film ◽

Thin Films ◽

Self Assembly ◽

Film Surface ◽

Molar Ratio ◽

Layer By Layer ◽

Sem Images ◽

Thin Film Surface ◽

Assembly Method ◽

Average Size

TiO2 thin films were deposited on SAM-coated silicon substrate by layer-by-layer self-assembly method. The influence of various parameters was investigated to optimize the conditions and the results show that with increasing deposition temperature and deposition time, and decreasing molar ratio of HCl to TiO22+, the content of TiO22+ in the reaction solution decreases. The as-deposited thin films were fully amorphous from the result of XRD, also were homogeneous and continuous produced at 80 °C for120 min as presented in SEM images, and the average size of particles on the thin film surface is approximately 33 nm.

Download Full-text