Ma Z. – TechConnect Briefs

Print Transferrable Large-Area Broadband Membrane Reflectors by Laser Interference Lithography

Seo J.-H., Park J., Zhao D., Yang H., Zhou W., Ju B.K., Ma Z., University of Wisconsin-Madison, US

Large-area broadband reflectors based on photonic crystals can enable a number of optoelectronic and photonics devices. To create nano patterns, nanoimprinting, electron-beam lithography and focused ion beam patterning techniques are commonly used. However, these methods [...]

Highly sensitive organic-inorganic heterojunction flexible photodetectors

Seo J.-H., Oh T.Y., Park J., Zhou W., Ju B.K., Ma Z., University of Wisconsin-Madison, US

Heterostructures formed between inorganic and organic materials could lead to many unique device applications due to their unique physical properties, such as mechanical flexibility, large area, low temperature processability and high performance. Since most n-type [...]

Flexible Graphene Transistors via Printing Transfer

Chang T.-C., Suh H.-S., Mikael S., Seo J.-H., Nealey P.F., Ma Z., University of Wisconsin-Madison, US

Graphene is an atomic layer material with the characteristics of high mobility, high mechanical strength, transparency and low injection energy barrier with different work function metals. Good transparent electrodes and flexible graphene-based large scale touch [...]

Monte Carlo Simulation of Impact of Random Telegraph Noise in 45 nm MOSFET Due to Coupled Effects of Random Interface and Oxide Traps With Random Channel Dopant Distributions

Ashraf N.S., Vasileska D., Ma Z., Arizona State University, US

This paper presents a 3-D Ensemble Monte Carlo ( EMC ) based simulation for 45 nm gate length MOSFET to account for the fluctuations in drain current (saturation) and threshold voltage as causes of reliability [...]

Fabrication and Transistor Demonstration on Si-based Nanomembranes

Yuan H-C, Roberts M.M., Savage D.E., Lagally M.G., Ma Z., Celler G.K., University of Wisconsin-Madison, US

We demonstrate the fabrication of free standing Si, SiGe, and Si/SiGe/Si membranes and the ability to transfer them onto various kinds of host substrates. In addition to the unstrained Si, SiGe membranes, strained Si is [...]

Single-molecule Fluorescence and Force Microscopy Employing Carbon Nanotubes

Wade L.A., Shapiro I., Ma Z., Quake S.R., Collier C.P., California Institute of Technology, US

The observation of spectroscopic signals, in response to mechanically induced changes in biological macromolecules can be enabled at an unprecedented level of resolution by coupling single-molecule manipulation/sensing using carbon nanotubes with single-molecule fluorescence imaging. Proteins, [...]