KR – Page 55 – TechConnect Briefs

Growth of InAs Quantum Dots Using the Strained Superlattices and Their Optical Properties

Leem J-Y, Choi H-K, Jeon M.H., Lee J.W., Leem J-Y, Cho G.S., Choi H-K, Department of Optical Engineering, KR

we have studied the growth of self-assembled quantum dots (QDs) using Stranski-Krastanow growth mode and strain-reducing layers for long-wavelength applications with narrow linewidth in photoluminescence (PL) emission. InAs QDs were grown on the strained superlattices, [...]

Atomistic Modeling on Structures of Ultrathin Copper Nanotubes

Kang J-W, Hwang H-J., Computational Semiconductor Laboratory, KR

We have performed atomistic simulations for helical multi-shell (HMS) Cu nanowires and nanotubes. Our investigation on HMS Cu nanowires and nanotubes has revealed some physical properties that were not dealt in previous works that considered [...]

Melting of Ultrathin Copper Nanobridges

Kang J-W, Hwang H-J., Chung-Ang University, KR

The previous studies on nanoclusters and infinite nanowires have shown the physical phenomena related to only the melting of nanoclusters and nanowires. This study showed the various physical phenomena of ultrathin nanobridges, such as the [...]

Mechanical Properties of SiC Nanotubes

Moon W.H., Ham J.K., Hwang H-J., Chung-Ang University, KR

We investigate the mechanical properties of SiC nanotubes using molecular dynamics simulation. We find that SiC nanotubes are less stiff than the other nanotubes considered so far, such as BN or C nanotubes. However, Youngs [...]

Synthesis and Application of Nanofabricated Nanoporous Materials

Park S-E, Hwang J.S., Hwang Y.K., Jhung S.H., Chang J-S, Hwang J.S., Hwang Y.K., Kim D.S., Korea Research Institute of Chemical Technology, KR

Zeolitic (molecular sieves) or mesoporous materials are the promising candidates for nanoscopically-engineered materials due to their well-defined pore structures, thermal stabilities and tailor-made synthetic abilities. Several zeolitic materials with the shape of nanorod or nanofiber [...]

System Identification for Motion of Proteins Using an AFM-based Nanorobotic Manipulation

Park J., Kim B-K., Kim D-H., Kim B-K., Kim D-H., Lee K-I., Korea Institute of Science and Technology, KR

It is greatly important to understand the mechanics of AFM-based nanorobotic manipulation for efficient and reliable handling of nanoparticles. Robust motion control of an AFM-based nanorobotic manipulation is much challenging due to uncertain mechanics in [...]

System Level Analysis for a Locomotive Inspection Robot with Integrated Microsystems

Jeong Y., Kim B., Oh H., Park J-O, Korea Institute of Science & Technology, KR

In this paper, we describe a locomotive inspection robot with integrated microsystems that comprises a micro pump, micro valves, micro channels, a sophisticated pressure amplification system with multi-bellows and biocompatible linear actuators with plastic coated [...]

Lumped Modeling of Thermal Inkjet Print Head

Lee Y-S, Kim M.S., Shin S., Shin S.J., Shin S., Shin S.J., CSE Center, Samsung Advanced Institute of Technology, KR

A lumped model is developed to improve the design of a thermally driven monolithic inkjet print head. The model is based on a two-dimensional heat conduction equation, an empirical pressure-temperature relation and a hydraulic flow-pressure [...]

Fabrication of 3-Dimesional Cu Coaxial Cylinder using Porous Silicon MEMS Technology

Eun D.S, Kim Y.M., Bae CH.H., Lee J-H., Kyungpook National University, KR

Therefore, this paper reports 3-dimensional Cu coaxial cylinder with a thick OPS(oxidized porous silicon) in low resistivity silicon for application of microwave and RF integrated circuit technology. A novel on-chip 3D coaxial cylinder was fabricated [...]

RF-MEMS Voltage Tunable Capacitor using Electrostatic Forces

Lee J., Kim Y., Na D., Park S., Kyungpook National University, KR

In this paper, we have proposed a fabrication method of a RF-MEMS voltage tunable capacitor using Au-electroplating technique, which has one movable parallel plate with various structure of beams. We applied an electrostatic method and [...]