Proceedings of the 2nd IEEE Conference on Nanotechnology
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On Ladders' complexity mechanism and quantitative regulation of scalable molecular computers by Rho family GTPases
- Trang 329-332
We propose a new bio-molecular computing method based on Rho family GTPases, and report that the Ladders' complexity increasing phenomenon is observed when molecular computing by Rho family GTPases is applied to solve large-scale 3-SAT problems. We also present the optimal condition for the regulation scheme as Pg=h Pl/Ql where Pg is the probability of global communication among the sub-pathways, ......
#Biology computing #Molecular computing #DNA computing #Nanobioscience #Concurrent computing #Parallel processing #Biological materials #Humans #Information science #Laboratories
Energy structure and magnetization effect of semiconductor quantum rings
- Trang 67-70
In this paper, we study the electronic structure of InAs/GaAs quantum rings and dots under applied magnetic fields. To compute electron-hole energy states and magnetization, a realistic three-dimensional (3D) model is applied and is solved with the nonlinear iterative method. With the developed nanostructure simulator, the variation of energy states for semiconductor quantum rings (R/sub in/=10 nm......
#Magnetization #Magnetic fields #Energy states #Quantum dots #Gallium arsenide #Iterative methods #Computational modeling #Photonic band gap #Shape #Nonlinear optics
Large pure refractive nonlinearity of nanostructure silica aerogel at near infrared wavelength
- Trang 495-497
The nonlinear refraction coefficient of the third-order susceptibility of silica aerogel was estimated to be /spl sim/-1.5/spl times/10/sup -15/ m/sup 2//W (/spl sim/-3.67/spl times/10/sup -9/ esu) by a signal-beam z-scan technique with /spl sim/1 ps Ti:sapphire lasers. The third-order nonlinear refraction coefficient of nanostructure silica aerogel is almost five orders larger than the nonlinear ......
#Silicon compounds #Optical refraction #Optical sensors #Nonlinear optics #Biomedical optical imaging #Optical variables control #Nanobioscience #Nanomaterials #Optical surface waves #Chemical and biological sensors
Threshold voltage calculation in ultra-thin film SOI MOSFETs using the effective potential
- Trang 189-192
The success of the effective potential method of including quantum confinement effects in simulations of MOSFETs is based on the ability to calculate ahead of time the extent of the Gaussian wave-packet used to describe the electron. In the calculation of the Gaussian, the inversion layer is assumed to form in a triangular potential well, from which a suitable standard deviation can be obtained. T......
#Threshold voltage #MOSFETs #Potential well #Electrons #Silicon #Carrier confinement #Monte Carlo methods #Quantum mechanics #Poisson equations #Semiconductor films
Proceedings of the 2002 2nd IEEE Conference on Nanotechnology (Cat. No.02TH8630)
- 2002
Presents the front cover of the proceedings record.
A single-electron-transistor-based analog/digital converter
- Trang 487-490
We propose a novel analog/digital (A/D) converter based on single-electron transistors (SETs) in this paper. In the proposed A/D converter, the core cell is a SET module, composed of capacitive dividers and SET-based universal literal gates. The SET-based universal literal gate is similar to the well-known Tucker's inverter (J.R. Tucker, J. Appl. Phys., vol. 72, no. 9, pp. 4399-4413, 1992), but he......
#Analog-digital conversion #Inverters #Electrons #Switches #Character generation #Hysteresis #Circuit simulation #Low voltage
New technology for the manufacturing of nanocrystalline materials
- Trang 273-276
For the manufacturing of nanocrystalline materials have been developed several methods. One of the methods is based on fabrication of a metal-organic or a complex compound using appropriate metal salt solutions or their melts. Pyrolysis at 800-900/spl deg/C of an appropriate compound in hydrogen atmosphere obtains a charge of carbide or already fabricated hard metals. The second method is based on......
#Manufacturing #Nanostructured materials #Inorganic materials #Organic materials #Circuits #Temperature distribution #Atmosphere #Modems #Mechanical factors #Conducting materials
Quantum-coherent transport in coupled quantum-dots
- Trang 333-336
The details of electron interference in quantum-dot systems coupled via quantum point contacts (QPCs) is studied via simulation and experiment. In both open and closed coupled systems, one sees transitions from multi- to single-dot behavior, even when the QPCs support several modes. The results also reveal a non-trivial scaling of the conductance fluctuations in quantum-dot arrays, arising from th......
#Quantum dots #Fluctuations #Interference #Electrons #Tunneling #Materials science and technology #Laboratories #Contacts #Reservoirs #Magnetic fields
CdS nanoparticles embedded in metal-insulator-semiconductor structures
- Trang 265-268
Metal-insulator-semiconductor structures were fabricated using 40 layers thick Langmuir-Blodgett (LB) films of stearic acid (SA) on hydrophobic n-type silicon (n-Si) substrates. Samples containing cadmium sulphide (CdS) nanoparticles exhibit higher rectification than untreated ones by two orders of magnitudes. The flat band voltage was found to be 0.5 V from the capacitance measurement. The effect......
#Nanoparticles #Metal-insulator structures #Silicon #Semiconductor films #Substrates #Voltage #Capacitance measurement #Hydrogen #Atmosphere #Aluminum
A new two-layer quantum-dot large-neighborhood cellular nonlinear network (QLN-CNN) using quantum-dot cellular automata
- Trang 355-357
A novel structure of QLN-CNN is proposed. The new structure of the QLN-CNN contains two layers of QCA array and introduces concepts of the A cloning templates, the B cloning templates, and the thresholds. The gene-decoding concept of CNNs is also used in this structure. Thus it operates more like real CNNs. In this paper, three CNN operations are proven to be achieved by this new structure through......
#Quantum dots #Cellular networks #Neurons #Quantum cellular automata #Cellular neural networks #Electrostatics #Stationary state #Cloning #MATLAB #Logic