نتایج جستجو برای: contact layer

تعداد نتایج: 436878  

Journal: :Nanotechnology 2013
Kwanghyun Yoo Yusuke Takei Sungjin Kim Shohei Chiashi Shigeo Maruyama Kiyoshi Matsumoto Isao Shimoyama

We firstly introduce a facile method for the site-specific direct physical exfoliation of few-layer graphene sheets from cheap and easily enlargeable graphite grown on a Ni foil using an optimized polydimethylsiloxane (PDMS) stamp. By decreasing the PDMS cross-linking time, the PDMS elasticity is reduced to ∼52 kPa, similar to that of a typical gel. As a result of this process, the PDMS becomes...

2002
A. R. C. BATRA

Abstract-We analyze a three-dimensional frictional contact problem between a homogeneous and isotropic linear elastic body and a substrate consisting of a homogeneous and isotropic linear elastic half-space coated with a transversely isotropic elastic layer. The problem formulation includes the kinematics of the body, including its rolling/sliding on the substrate. Expressions relating the disp...

Journal: :Angewandte Chemie 2016
Sanghyuk Wooh Doris Vollmer

Losing contact: Omniphobic surfaces can be readily produced by acid-catalyzed graft polycondensation of dimethyldimethoxysilane (PDMS). Droplets show a very small contact angle hysteresis as well as a low sliding angle of only a few degrees. The nm-thick PDMS layer is neither easily washed away nor depleted. This method offers a novel approach towards the preparation of super-liquid-repelling s...

Journal: :The Journal of chemical physics 2006
L Weinhardt O Fuchs A Peter E Umbach C Heske J Reichardt M Bär I Lauermann I Kötschau A Grimm S Sokoll M Ch Lux-Steiner T P Niesen S Visbeck F Karg

The Cu(In,Ga)(S,Se)(2)Mo interface in thin-film solar cells has been investigated by surface-sensitive photoelectron spectroscopy, bulk-sensitive x-ray emission spectroscopy, and atomic force microscopy. It is possible to access this deeply buried interface by using a suitable lift-off technique, which allows us to investigate the back side of the absorber layer as well as the front side of the...

2004
Suey Li Toh K. P. Loh C. B. Boothroyd K. Li C. H. Ang E. Er L. Chan

We have investigated the influence of a contact etch-stop layer ~ESL! on the local mechanical stress in a deep sub-micrometer complementary metal oxide semiconductor ~CMOS! field-effect transistor using convergent-beam electron diffraction with nanoscale resolution. By introducing a thin buffer layer of SiOxNy underneath the Si3N4 contact ESL, we have shown that the compressive channel strain c...

Journal: :Herald of Dagestan State Technical University. Technical Sciences 2021

2014
Sho Yokoyama Tsubasa S. Matsui Shinji Deguchi

Micropatterning is becoming a powerful tool for studying morphogenetic and differentiation processes of cells. Here we describe a new micropatterning technique, which we refer to as microcontact peeling. Polydimethylsiloxane (PDMS) substrates were treated with oxygen plasma, and the resulting hydrophilic layer of the surface was locally peeled off through direct contact with a peeling stamp mad...

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