Three-Dimensionally Ordered Gold Nanocrystal/Silica Superlattice Thin Films Synthesized via Sol–Gel Self-Assembly

2006 ◽  
Vol 16 (7) ◽  
pp. 891-895 ◽  
Author(s):  
H. Fan ◽  
A. Wright ◽  
J. Gabaldon ◽  
A. Rodriguez ◽  
C. J. Brinker ◽  
...  
Keyword(s):  
Thin Films ◽  
Self Assembly ◽  
Sol Gel ◽  
Gold Nanocrystal

Inside Front Cover: Three-Dimensionally Ordered Gold Nanocrystal/Silica Superlattice Thin Films Synthesized via Sol–Gel Self-Assembly (Adv. Funct. Mater. 7/2006)

2006 ◽  
Vol 16 (7) ◽  
pp. NA-NA
Author(s):  
H. Fan ◽  
A. Wright ◽  
J. Gabaldon ◽  
A. Rodriguez ◽  
C. J. Brinker ◽  
...  
Keyword(s):  
Thin Films ◽  
Self Assembly ◽  
Sol Gel ◽  
Front Cover ◽  
Gold Nanocrystal

Electrical and Optical Properties of Self-Assembled, Ordered Gold Nanocrystal/Silica Thin Films Prepared by Sol-Gel Processing

2005 ◽  
Vol 872 ◽  
Author(s):  
Kai Yang ◽  
Hongyou Fan ◽  
Michael J. O'Brien ◽  
Sima La Fontaine ◽  
Gabriel P. Lopez ◽  
...  
Keyword(s):  
Optical Properties ◽  
Surface Plasmon ◽  
Self Assembly ◽  
Sol Gel ◽  
Water Soluble ◽  
Oxide Semiconductor ◽  
Excitation Spectra ◽  
Soluble Silica ◽  
Strong Surface ◽  
Gold Nanocrystal

AbstractHighly ordered gold NC/silica films are synthesized by self-assembly of water-soluble gold nanocrystal micelles and soluble silica using a sol-gel spin-coating technique. The optical properties are analyzed using ellipsometry and ultraviolet-visible spectroscopy. The absorption spectra show a strong surface plasmon absorption band at ∼520 nm for all samples. Angular excitation spectra of the surface plasmon show a steep dip in the reflectivity curve at ∼65°. Charge transport behavior of the films is examined using metal-oxide-semiconductor (MOS) structures.MOS capacitor samples exhibit charge storage with discharge behavior dominated by electron transport within the gold NC arrays.

Frictional Characteristics of Mesoporous SiO2 Thin Film Formed by Sol-Gel and Self-Assembly Method

2007 ◽  
Author(s):  
Yun-Ha Shin ◽  
Hong-Gyu Jeon ◽  
Jeong-Kuk Son ◽  
Ji-Man Kim ◽  
Tae-Sung Kim ◽  
...  
Keyword(s):  
Thin Films ◽  
Pore Size ◽  
Self Assembly ◽  
Sol Gel ◽  
Wear Particle ◽  
Porous Films ◽  
Sio2 Thin Film ◽  
Assembly Method ◽  
Glass Specimen ◽  
Mesoporous Sio2

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.

Direct Sol–Gel Fabrication of Patterned Zirconia Thin Films Using Self-assembly in Phase-separated Mixed Langmuir–Blodgett Films

2007 ◽  
Vol 36 (11) ◽  
pp. 1356-1357 ◽  
Author(s):  
Hirobumi Shibata ◽  
Masahiro Sato ◽  
Hideki Sakai ◽  
Masahiko Abe ◽  
Mutsuyoshi Matsumoto
Keyword(s):  
Thin Films ◽  
Self Assembly ◽  
Sol Gel ◽  
Langmuir Blodgett ◽  
Langmuir Blodgett Films

Mesoporous Hybrid Thin Films: Building Blocks for Complex Materials with Spatial Organization

2007 ◽  
Vol 1007 ◽  
Author(s):  
Galo J. Soler-Illia ◽  
Paula C. Angelomé ◽  
M. Cecilia Fuertes ◽  
Alejandro Wolosiuk ◽  
Sara A. Bilmes ◽  
...  
Keyword(s):  
Thin Films ◽  
Self Assembly ◽  
Spatial Organization ◽  
Sol Gel ◽  
Building Blocks ◽  
Film Deposition ◽  
One Pot ◽  
Selective Functionalization ◽  
Hybrid Thin Films ◽  
Sol Gel Synthesis

ABSTRACTMesoporous Hybrid Thin Films (MHTF) of a variety of compositions and embedded organic functions are produced by combining sol-gel synthesis, template self-assembly and surface modification. One-pot or post-grafting strategies permit to modify the pore surface behavior. Highly controlled MHTF issued from a reproducible and modular synthesis can be used as building blocks for more complex structures, presenting order at larger scales, and novel properties derived from this multiscale order. Multilayer stacks of MHTF presenting specific and different functions and frameworks located in a well-defined position have been produced by combining sequential film deposition, selective functionalization and dissolution. These systems present new properties such as localized chemistry or modulable photonic crystal behavior.

A versatile approach to the fabrication of TiO2 nanostructures with reverse morphology and mesoporous Ag/TiO2 thin films via cooperative PS-b-PEO self-assembly and a sol-gel process

2009 ◽  
Vol 19 (39) ◽  
pp. 7245 ◽  
Author(s):  
Min-Ah Cha ◽  
Changhak Shin ◽  
Dinakaran Kannaiyan ◽  
Yoon Hee Jang ◽  
Saji Thomas Kochuveedu ◽  
...  
Keyword(s):  
Thin Films ◽  
Self Assembly ◽  
Sol Gel ◽  
Tio2 Thin Films ◽  
Sol Gel Process ◽  
Tio2 Nanostructures

scholarly journals Thermoelectric Properties of Al-Doped Mesoporous ZnO Thin Films

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Min-Hee Hong ◽  
Chang-Sun Park ◽  
Won-Seon Seo ◽  
Young Soo Lim ◽  
Jung-Kun Lee ◽  
...  
Keyword(s):  
Thin Films ◽  
Electrical Conductivity ◽  
Grain Growth ◽  
Self Assembly ◽  
Doping Concentration ◽  
Sol Gel ◽  
Mesoporous Structure ◽  
Zno Thin Films ◽  
Al Doping ◽  
Mesoporous Zno

Al-doped mesoporous ZnO thin films were synthesized by a sol-gel process and an evaporation-induced self-assembly process. In this work, the effects of Al doping concentration on the electrical conductivity and characterization of mesoporous ZnO thin films were investigated. By changing the Al doping concentration, ZnO grain growth is inhibited, and the mesoporous structure of ZnO is maintained during a relatively high temperature annealing process. The porosity of Al-doped mesoporous ZnO thin films increased slightly with increasing Al doping concentration. Finally, as electrical conductivity was increased as electrons were freed and pore structure was maintained by inhibiting grain growth, the thermoelectric property was enhanced with increasing Al concentration.

On the mechanical and electrical properties of self-assembly-based organosilicate porous films

2017 ◽  
Vol 5 (33) ◽  
pp. 8599-8607 ◽  
Author(s):  
M. Redzheb ◽  
S. Armini ◽  
T. Berger ◽  
M. Jacobs ◽  
M. Krishtab ◽  
...  
Keyword(s):  
Thin Films ◽  
Electrical Properties ◽  
Self Assembly ◽  
Sol Gel ◽  
Porous Films ◽  
Mechanical And Electrical Properties

The effect of the replacement of Si–O–Si by Si–CH2–Si groups on the mechanical and electrical properties of silica-based hybrid sol–gel thin films is reported.

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