The Institute of Physics ( IOP ) по журналам "Nanotechnology"
Отображаемые элементы 1-20 из 469
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(2000-12-01)Optical and structural properties of multilayer structures with InAs/GaAs quantum dots are investigated. It is shown that under optimal growth conditions, 1.3-1.4µm emission can be achieved. Possible scenarios of quantum ...
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(1999-03-01)The inclusion compounds (ICs) of tris(o-phenylenedioxy)cyclotriphosphazene (TPP) with several small molecules have been studied, for the first time, by 13C magic angle spinning NMR. The channel-type structure of TPP ICs ...
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(1992-10-01)Photoluminescence studies have been performed on Si fine particles prepared by several different techniques. Orange light emission has been observed in oxidized fine Si particles prepared by gas evaporation. Spectral ...
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(2000-06-01)The phenomena of dielectrophoresis and electrorotation, collectively referred to as AC electrokinetics, have been used for many years to study, manipulate and separate particles on the cellular (1µm or more) scale. However, ...
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(1991-07-01)While computational chemistry can be used to predict properties of existing and hypothetical structures, molecular engineering remains an expensive, time consuming and largely experimental challenge. With the aim of working ...
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(2000-12-01)We present, to our knowledge, the first experimental evidence for the existence of acoustical plasma oscillations in photoexcited electron-hole plasma observed in resonant quasielastic electronic light scattering spectra ...
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(1999-06-01)Intravalley acoustic phonon scattering of electrons in fully quantized systems based on n-type inversion layers on a (100) surface of p-type Si is studied theoretically. The confining potential normal to the Si/SiO2 interface ...
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(1994-10-01)In this letter the effect of active current limitation on the reliability and performance of cold-cathode emitters produced using nanometric fabrication techniques is described. MOSFET limiters were compared along with ...
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(1998-06-01)Spacecraft drift from their desired orbit as a result of being subjected to external forces, such as gravity, atmospheric drag or solar pressure. In situ propulsion systems are employed to maintain a spacecraft in a ...
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(1996-09-01)New molecular CAD tools are needed for the design of diamondoid nanostructures. They are needed to produce detailed designs for general discussion, to produce designs for analysis by computational chemistry packages, to ...
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(1996-12-01)AFM-generated surface modifications are used to fabricate free-standing Si nanostructures. We employ the local electric field of a metal-coated AFM tip which is operated in air to selectively oxidize regions of a H-passivated ...
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(1997-09-01)An organosilane monolayer consisting of trimethylsilyl ([ - ) groups prepared on the native oxide of a silicon substrate effectively served as a resist material for AFM-based nanolithography. The patterning of this resist ...
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(2000-06-01)Nanoscale assemblers will need robust, scalable, flexible, and well-understood mechanisms such as software agents to control them. This paper discusses assemblers and agents, and proposes a taxonomy of their possible ...
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(2000-12-01)In this paper we present a low-temperature (T<30K) photoluminescence (PL) study of space-indirect excitons in GaAs/AlGaAs double quantum wells at pumping density P and external electric field Vdc. At certain external ...
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(1995-10-01)For the purpose of fabricating free-form optical elements to an accuracy of 80 nm PV, the CSSP (Canon Super-Smooth Polisher) has been developed. This device finishes workpieces by alternately repeating contour measuring ...
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(1993-01-01)A lateral-resonant-tunneling quantum-dot cell is described which is configurable to span the complete range of three-input functions. The cell area could be of the order of 0.1 mu m2. This cell could enable large, edge-fed, ...
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(1999-12-01)Recently, our work on the measurement of Si(111) single atomic steps has prompted us to investigate the algorithm for the calculation of a one-sided step height. We compared the results of a two-point subtraction and a ...
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(1995-01-01)This paper presents a practical and inexpensive method to achieve nanometer stability in laser interferometric displacement measurements in an actual environment, for example, in a machine shop. The system employed here ...
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(1991-01-01)The aim of the authors' work was to develop a linear table and a rotary bearing of controlled type with the following features: (i) ultra-precision, (ii) infinite static stiffness, (iii) high vibration damping capability ...
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(1992-04-01)Aiming for bearings of ultra-precision, infinite stiffness, high vibration damping capability and new functions (axis positioning and dynamic stiffness control), the authors present in this paper an 'active air journal ...
Отображаемые элементы 1-20 из 469