University of Illinois – Page 2

Static and Dynamic Analysis of Silicon NEMS

Tang Z., Aluru N.R., University of Illinois, US

Microelectromechanical systems (MEMS) have already revolutionized many areas including communications, information technology, medical, mechanical and aerospace technologies. Nanoelectromechanical systems (NEMS) are MEMS with submicron critical dimensions. NEMS have the potential to fundamentally change the way [...]

Water Ordering by Confinement in Carbon Nanotubes at 300K: Implications for possible design of proton-conducting nano-semiconductors

Mashl R.J., Joseph S., Aluru N.R., Jakobsson E., University of Illinois, US

Molecular dynamics (MD) simulations suggest that water readily enters carbon nanotubes. This is also suggested by the fact that fluorescence in nanotubes is affected by the pH of external electrolyte. Distinctive symmetrical water structures emerge [...]

Electrically Triggered Hydrogels: Mathematical Models and Simulations

Chatterjee A.N., De S.K., Aluru N.R., University of Illinois, US

Environmentally sensitive hydrogels have enormous potential in various applications. Ionic polymer gels have been shown to respond to a number of different stimuli like pH and electric field. One of the major advantages of electro-responsive [...]

Combining Computational Chemistry and Computational Electronics to Understand Protein Ion Channels

van der Straaten T., Varma S., Chiu S-W, Tang J., Aluru N.R., Eisenberg R.S., Ravaioli U., Jakobsson E., University of Illinois, US

Nanoscale computational engineering can be achieved by combining atomic and molecular scale methods of computational chemistry with coarser-grained continuum theories used in computational electronics. Each computational discipline is quite different; yet both must give the [...]

The Effect of a Multiple Carrier Model of Interface Trap Generation on Lifetime Extraction for MOSFETs

McMahon W., Matsuda K., Lee J., Hess K., Lyding J., University of Illinois, US

An isotope effect in the slope of the substrate current versus lifetime requires a model beyond the standard single carrier lucky electron model typically used for MOSFET lifetime extrapolation. A multiple scattering model is developed [...]

Electromechanical and Microwave S-parameter Properties of a Wide Tuning Range MEMS Tunable Capacitor

Chen J., Zou J., Liu C., Kang S-M, University of Illinois, CN

We present the electromechanical and microwave properties of a novel micromachined parallel-plate tunable capacitor with a wide tuning range. Different from conventional two-parallel-plate tunable capacitors, this novel tunable capacitor consists of one suspended top plate [...]

Simulation of Electroosmosis Using a Meshless Finite Point Method

Mitchell M.J., Aluru N.R., University of Illinois, US

A Finite Point Method (FPM) based on a weighted least squares interpolation is presented for the simulation of electroosmotic transport in capillaries. This method requires no mesh and involves no Galerkin-type integration, making it more [...]

Modeling of Piezoelectric MEMS Using the Finite Cloud Method

Ohs R.R., Aluru N.R., University of Illinois, US

In this paper we present a meshless based Finite Cloud Method (FCM) for the numerical solution of partial differential equations (PDEs) governing piezoelectricity. Using a point distribution, FCM constructs interpolation functions without assuming any connectivity [...]