scholarly journals Organic self-assembled monolayers for reconstitution of ion channels on single crystal silicon

2003 ◽  
Author(s):  
Maryna Ornatska
Keyword(s):  
Ion Channels ◽  
Single Crystal ◽  
Single Crystal Silicon ◽  
Self Assembled Monolayers ◽  
Crystal Silicon ◽  
Assembled Monolayers ◽  
Self Assembled

Deposition of Nanocrystalline Tin (IV) Oxide Films on Organic Self-Assembled Monolayers

1999 ◽  
Vol 576 ◽  
Author(s):  
S. Supothina ◽  
M. R. De Guire ◽  
T. P. Niesen ◽  
J. Bill ◽  
F. Aldinger ◽  
...  
Keyword(s):  
Single Crystal Silicon ◽  
Self Assembled Monolayers ◽  
Crystal Silicon ◽  
Deposition Chamber ◽  
Transmission Electron ◽  
Static Solutions ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Nanocrystalline Thin Films

ABSTRACTNanocrystalline thin films of tin (IV) oxide (cassiterite) have been deposited from aqueous solutions of tin (IV) chloride and hydrochloric acid at 80°C. Substrates were {100} single-crystal silicon wafers, with and without silanol-anchored, sulfonate-terminated organic self-assembled monolayers (SAMs). Using flowing solutions, films with thicknesses of up to 1 μtm have been grown, whereas the thickness of the films from static solutions is limited to about 80 nm. The films were characterized using transmission electron microscopy and Rutherford backscattering spectroscopy. The role of the flow rate and configuration of the deposition chamber is discussed.

Ceramic Thin Films on Organic Self-Assembled Monolayers: Synthesis and the Mechanism of Formation

1999 ◽  
Vol 599 ◽  
Author(s):  
U. Sampathkumaran ◽  
S. Supothina ◽  
R. Wang ◽  
M. R. De Guire
Keyword(s):  
Thin Films ◽  
Film Formation ◽  
Single Crystal Silicon ◽  
Surface Preparation ◽  
Inorganic Materials ◽  
Self Assembled Monolayers ◽  
Crystal Silicon ◽  
Ceramic Thin Films ◽  
Assembled Monolayers ◽  
Self Assembled

AbstractIn recent years, several research groups have pursued biomimetic or bio-inspired techniques for the synthesis of ceramic thin films from aqueous solutions at low temperatures. The substrates range from inorganic materials (metals, glass, single-crystal silicon) without special surface preparation, to functionalized organic surfaces such as self-assembled organic monolayers (SAMs). Our results on the deposition of tin (IV) oxide (SnO2, cassiterite) and hydroxyapatite (Ca10(PO4)6(OH)2) thin films on SAMs will be reviewed. The former system forms films via assembly of nano-scale particles on the substrate, while the latter system appears to form films via heterogeneous nucleation. In both cases, the role of the substrate in film formation is discussed.

Preparation and Tribological Property of Novel Self-Assembled Composite Films on Silicon

2014 ◽  
Vol 936 ◽  
pp. 1066-1070
Author(s):  
Shu Hua Teng ◽  
He Pan
Keyword(s):  
Composite Films ◽  
Single Crystal Silicon ◽  
Self Assembled Monolayers ◽  
Optimal Time ◽  
Silicon Substrates ◽  
Crystal Silicon ◽  
Wear Life ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Aldehyde Groups

Self-assembled composite films of APTES-GA-APTES were successfully prepared on single-crystal silicon substrates through the cross-linking reaction between glutaraldehyde (GA) and two layers of 3-aminopropyltriethoxysilane (APTES). The optimal time to deposit the GA layer on the APTES monolayer was 3 h, during which most amino groups of APTES reacted with the aldehyde groups of GA to form smooth and uniform APTES-GA composite films. The further deposition of another APTES layer led to the generation of three-layer APTES-GA-APTES composite films. Compared to the APTES self-assembled monolayers, the three-layer films displayed a similar surface morphology but a reduced friction coefficient from 0.23 to 0.15 and an extended wear life from 50 s to 820 s due to the introduction of GA.

scholarly journals Effects of Polarized Organosilane Self-Assembled Monolayers on Organic Single-Crystal Field-Effect Transistors

2005 ◽  
Vol 871 ◽  
Author(s):  
J. Takey ◽  
T. Nishikaw ◽  
T. Takenobu ◽  
H. Shimotani ◽  
S. Kobayashi ◽  
...  
Keyword(s):  
Single Crystal ◽  
Crystal Field ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Self Assembled Monolayers ◽  
Crystal Field Effect ◽  
Organic Single Crystal ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Circuit Components

AbstractOrganosilane self-assembled monolayers, embedded in organic single-crystal field-effect transistors, significantly affect subthreshold properties in the transfer characteristics. The monolayer of either polarized or nearly unpolarized molecules is deposited on a SiO2/doped Si substrate before softly attaching a rubrene thin single crystal to form the “laminated crystal” transistors. As a result of effective passivation of the SiO2 surface, the device has achieved a subthreshold swing as low as 0.11 V/decade. It is also demonstrated that threshold gate voltage is shifted by polarization of the monolayers, indicating that threshold of the device is adjustable by the choice of silane materials. Both of the functions are closely associated with low-power applications such as logic-circuit components.

Atomic force microscopy studies of microstructure and properties of self-assembled monolayers

1996 ◽  
Vol 54 ◽  
pp. 864-865
Author(s):  
J. F. Richards ◽  
E. B. Troughton ◽  
R. A. Dennis ◽  
P. E. Russell
Keyword(s):  
Atomic Force Microscopy ◽  
Single Crystal ◽  
Level Structure ◽  
Polymeric Materials ◽  
Self Assembled Monolayers ◽  
Force Microscopy ◽  
Microstructure And Properties ◽  
Atomic Force ◽  
Assembled Monolayers ◽  
Self Assembled

Self-assembled monolayers are unique structures and have received considerable attention from microscopists seeking to image the predicted molecular level structure. More recently, practical engineering applications of SAMs have been proposed in areas ranging from corrosion barriers to adhesion promoters to lithographic resists. While some of the applications of interest, most notably the lithographic resists, can be developed on substrates close to the ideal; such as single crystal Si wafers or thin epitaxial films; many others will require the coating of very non-ideal surfaces. These may range from materials such as Al or ferrous based metals to engineering polymeric materials. In this study we have taken a two-pronged approach to develop reliable systematic atomic force microscopy (AFM) techniques for the determination of both microstructure and properties of SAMs on various substrates of interest.We have chosen to investigate n-alkanethiols (SH-(CH2)n-1-CH3) on single crystal gold as our reference system for technique development.

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