Papers – Page 14 – TechConnect Briefs

Quantum Dots/Conductive Polymer Nanocomposite

Chen C-M, Chen H-S, Huang H-C, Chen C-M, Chen H-S, ITRI, TW

The nanocomposite composed of CdSe quantum dots and conductive polymer (MDMO-PPV) was investigated. The spherical 3.8-nm functionalized CdSe quantum dots were synthesized by colloidal chemical method. The conductive polymer MDMO-PPV was synthesized from 1-methoxyl-4-(3,7dimethyl-octanoxyl)benzene and [...]

Superposition Behavior in Babinet’s Effect on the Nano Au Particles Patterns

Wu S-C, Chen C-F, Chen H-L, Chao W-C, Chen C-F, Chen H-L, National Nano Device Laboratories, TW

The individual Babinet effect [1] in two types of complementary patterns can be added on a composed pattern mixed both patterns under the FTIR (Fourier Transform Infer-Red) spectroscopy measuring. That is the Babinet spectrum on [...]

Stochastic Analysis of Particle-Pair Transport in Brownian Ratchet Device

Retkute R., Gleeson J.P., University College Cork, IE

The motion of particle pairs in a Brownian ratchet device is studied using Langevin simulations. A Lennard-Jones interaction between the particles is added to a standard spring-bead model. The effects of such interaction upon a [...]

Multiscale (Nano-to-Micro) Design of Integrated Nanobio Systems

Jenkins J., Hagan M., Chakraborty A., Sundaram S., CFD Research Corporation, US

Biological systems have the first level of organization at the nanoscale. Proteins, DNA, RNA, ion channels are nanoscale systems that leverage molecular interactions to perform specific tasks. Integrated nano-bio systems have emerged as strong candidates [...]

A Minnow, an E. Coli and Ubiquinone: The Story of Rectified Brownian Motion

Fox R.F., School of Physics, US

Rectified Brownian motion provides a mechanistic alternative to the power stroke model for the function of motor proteins and other enzyme complexes. ATP is the source of metabolic free energy for motor proteins such as [...]

Nano-Scale Effects in GaN-based Light-Emitting Diodes

Piprek J., Nakamura S., University of California, US

We here investigate the effects of built-in polarization on the properties of non-symmetric InGaN quantum wells. The impact of these nano-scale effects on the performance of blue light emitting diodes is analyzed utilizing advanced numerical [...]

An Ultra-Fast Scheme for Sample-Detection in Dynamic-Mode Atomic Force Microscopy

Sahoo D.R., Sebastian A., Salapaka M.V., Iowa State University, US

In typical dynamic mode operation of atomic force microscopes steady state signals like amplitude and phase are used for detection and imaging of material. In these methods, high quality factor of the cantilever results in [...]

High Resolution Backside Imaging and Thermography using a Numerical Aperature Increasing Lens

Ünlü M.S., Ippolito S.B., Eraslan M.G., Thorne S.A., Vamivakas A., Goldberg B.B., Leblebici Y., Boston University, US

Nanoscale imaging of defects in ICs is a great current technological challenge as IC feature sizes continue to shrink. We have developed novel techniques based on a Numerical Aperture Increasing Lens (NAIL) to study semiconductors [...]

Local Optical Field in the Neighborhood of Structured Surfaces: Phase Singularities and Talbot Effect

Levine B., Caumont M., Amien C., Chaudret B., Dwir B., Bacsa W.S., LPST Université Paul Sabatier, FR

We have probed the local optical field in the vicinity of structured surfaces to observe optical coherence effects. We have used a sub -wavelength sized optical fiber probe to map the local field of microgratings [...]

Ultimate Limits to Optical Displacement Detection in Nanoelectromechanical Systems

Kouh T., Karabacak D., Kim D-H., Ekinci K.L., Boston University, US

Nano-electro-mechanical Systems (NEMS) are among the most promising manifestations of the emerging field of nanotechnology. These are electromechanical systems with dimensions in the deep submicron mostly operated in their resonant modes. In this size regime, [...]