Papers – Page 3 – TechConnect Briefs

Nano-Lithography in Ultra-High Vacuum (UHV) for Real World Applications

Gilsinn J., Zhou H., Damazo B., Fu J., Silver R., NIST, US

As nano-lithography technology improves, more companies and research groups have the capability to create nano-scale structures. Scanning tunneling microscopes (STMs) are commonly used to create these structures and evaluate them afterward. One difficulty is that [...]

Fabrication of Metallic Nano-stamper and Replication of Nano-patterned Substrate for Patterned Media

Kim Y., Kim Y.J., Lee N., Kim Y., Kim Y.J., Kang S., Yonsei University, KR

With increasing demand for ultra high-density information storages, patterned media has received much attention as a solution to overcome the limits of conventional continuous magnetic media. Current methods to fabricate the patterned media are to [...]

Self-assembled Alternating Nano-scaled Layers

Wu W-Y, Ting J-M, National Cheng Kung University, TW

This paper reports the use of a conventional sputter deposition technique to produce self-assembled alternating nano-scaled layers consisting of diamond-like carbon (DLC) and metal. A conventional sputter deposition technique produces alternating layers only when multiple [...]

Single-Dot Spectroscopy of Low Density GaAs Quantum Dots Grown by Modified Droplet Epitaxy

Yamagiwa M., Minami F., Koguchi N., Tokyo Institute of Technology, JP

Low density GaAs/AlGaAs quantum dots (QDs) have been fabricated using Modified Droplet Epitaxy (MDE) [1] for the spectroscopic study of single QDs using microphotoluminescence (µPL). In µPL measurements, the excitation/observation area is focused by a [...]

Nano-Structured C60-SAM Formed on Ultrathin Au Films/MgO Single Crystal

Yamamoto H., Iwata N., Shimizu Y., Nihon University, College of Science & Technology, JP

Exotic electric conducting properties have been expected in organic molecules/metals interfaces with lowdimensional nano-structures. A self-assembly monolayer of a C60 derivative, C60-O-C8SH, (C60-SAM) was synthesized on ultrathin Au films which were deposited on MgO (100) [...]

Mechanical Parameter Extraction of Thin-Film Coated Materials

Li Y., Tseng K.K., Vanderbilt University, US

Materials coated with thin-films have become popular in many advanced applications. The thin layer of high-strength coating can improve the performance of the material. However, challenges arise when characterizing or extracting mechanical parameters for this [...]

Phase Identification and Elastic Property of Blend Copolymer Characterized by Force Modulation Microscopy and Force-Distance Curve

Kang B., Lee J.S., Pham L., Sung C., University of Massachusetts-Lowell, US

The technique of polymer blending has been used to create new types of polymers with desirable properties in the past decade. Force Modulation Microscopy (FMM) provides a local contrast due to the local elasticity difference [...]

DOE Optimization and Phase Morphology of Electrospun Nanofibers of PANI/PMMA Blends

Desai K., Sung C., University of Massachusetts-Lowell, US

Electrospinning is a process by which sub-micron polymer fibers can be produced using an electrostatically driven jet of polymer solution. The fibers are collected as a non-woven mat or membrane with high surface area to [...]

Uniform Polycarbonate Nanofibers Produced By Electrospinning

Kattamuri N., Sung C., University of Massachusetts, US

In the present work electrospinning of polycarbonate has been performed to produce nanofibers.Parameters like concentration,voltage,flow rate and distances were varied and an optimum condition of all the parameters was achieved to generate uniform ,smooth nanofibers [...]

MEMS Resonator Tuning using Focused Ion Beam Platinum Deposition

Enderling S., Jiang L., Ross A.W.S., Bond S., Hedley J., Harris A.J., Burdess J.S., Cheung R., Zorman C.A., Mehregany M., Walton A.J., University of Edinburgh, UK

This paper presents a novel post-fabrication tuning method which changes the resonant frequency of micromechanical beam resonators using Focused Ion Beam (FIB) deposition and removal of platinum. Tuning was achieved by depositing platinum on a [...]