نتایج جستجو برای: interlayer

تعداد نتایج: 6067  

2010
Roman M. Lutchyn Enrico Rossi S. Das Sarma

Recent experimental progress in producing ultracold polar molecules with a net electric dipole moment opens up possibilities for realizing quantum phases governed by the long-range and anisotropic dipole-dipole interactions. In this work we predict the existence of experimentally observable broken-symmetry states with spontaneous interlayer coherence in cold polar molecule bilayers. These exoti...

2016
Karin Zojer Thomas Rothländer Johanna Kraxner Roland Schmied Ursula Palfinger Harald Plank Werner Grogger Anja Haase Herbert Gold Barbara Stadlober

Organic thin-film transistors for high frequency applications require large transconductances in combination with minimal parasitic capacitances. Techniques aiming at eliminating parasitic capacitances are prone to produce a mismatch between electrodes, in particular gaps between the gate and the interlayer electrodes. While such mismatches are typically undesirable, we demonstrate that, in fac...

2012
Jianing Gao Junting Li Brian C. Benicewicz Linda S. Schadler

This study demonstrated a method for toughening a highly crosslinked anhydride cured DGEBA epoxy using rubbery block copolymer grafted SiO2 nanoparticles. The particles were synthesized by a sequential reversible addition-fragmentation chain transfer (RAFT) polymerization. The inner rubbery block poly(n-hexyl methacrylate) (PHMA) had a glass transition temperature below room temperature. The ou...

2018
S. Kim

The adhesion of PACVD TiN films on tool steel ( AISI Pa ) has been investigated as a function of interfacial chemistry and the metallic interlayer formation between TiN films and substrate steel. Prior to TiN deposition, thin metallic interlayers such as T i , Cr, Cu films were deposited on a steel substrate with thickness range of 200 2000 A by Magnetron qxtterhg. TiN films were deposited by R...

Journal: :Geochemical Transactions 2002
Rebecca Sutton Garrison Sposito

Computer animation of center of mass coordinates obtained from 800 ps molecular dynamics simulations of Cs-smectite hydrates (1/3 and 2/3 water monolayers) provided information concerning the structure and dynamics of the interlayer region that could not be obtained through traditional simulation analysis methods. Cs formed inner sphere complexes with the mineral surface, and could be seen to j...

2017
Mingyu Zhang Jiayu Wang Liang Li Guanhaojie Zheng Kuan Liu Meng Qin Huanping Zhou Xiaowei Zhan

A high-mobility p-type organic semiconductor based on benzodithiophene and diketopyrrolopyrrole with linear alkylthio substituents (BDTS-2DPP) is used as a dual function interfacial layer to modify the interface of perovskite/2,2',7,7'-tetrakis(N,N'-di-p-methoxyphenylamine)-9,9'-spirobifluorene in planar perovskite solar cells. The BDTS-2DPP layer can remarkably passivate the surface defects of...

2016
Gyeong-Hyeon Gwak Istvan Kocsis Yves-Marie Legrand Mihail Barboiu Jae-Min Oh

Guanosine monophosphates (GMPs) were intercalated into the interlayer space of layered double hydroxides (LDHs) and the molecular arrangement of GMP was controlled in LDHs. The intercalation conditions such as GMP/LDH molar ratio and reaction temperature were systematically adjusted. When the GMP/LDH molar ratio was 1:2, which corresponds to the charge balance between positive LDH sheets and GM...

Journal: :Physical review letters 2010
Noa Marom Jonathan Bernstein Jonathan Garel Alexandre Tkatchenko Ernesto Joselevich Leeor Kronik Oded Hod

The interlayer sliding energy landscape of hexagonal boron nitride (h-BN) is investigated via a van der Waals corrected density functional theory approach. It is found that the main role of the van der Waals forces is to anchor the layers at a fixed distance, whereas the electrostatic forces dictate the optimal stacking mode and the interlayer sliding energy. A nearly free-sliding path is ident...

Journal: :Science 2014
D T Vaniman D L Bish D W Ming T F Bristow R V Morris D F Blake S J Chipera S M Morrison A H Treiman E B Rampe M Rice C N Achilles J P Grotzinger S M McLennan J Williams J F Bell H E Newsom R T Downs S Maurice P Sarrazin A S Yen J M Morookian J D Farmer K Stack R E Milliken B L Ehlmann D Y Sumner G Berger J A Crisp J A Hurowitz R Anderson D J Des Marais E M Stolper K S Edgett S Gupta N Spanovich

Sedimentary rocks at Yellowknife Bay (Gale crater) on Mars include mudstone sampled by the Curiosity rover. The samples, John Klein and Cumberland, contain detrital basaltic minerals, calcium sulfates, iron oxide or hydroxides, iron sulfides, amorphous material, and trioctahedral smectites. The John Klein smectite has basal spacing of ~10 angstroms, indicating little interlayer hydration. The C...

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