KR – Page 30 – TechConnect Briefs

Thin film solar cell based on microcrystalline nanostructure silicon grown in low temperature condition

Chung Y.B., Lim J.S., Kim H., Kim J.K., Hwang N.M., Kim H., Kim J.K., Park Y.J., Seoul National University, KR

High quality microcrystalline silicon thin film grown by Hot-Wire Chemical Vapor Deposition(HWCVD) and subsequently manufactured solar cells are presented. Intrinsic layer photoconductivity data is provided for one of the film quality measures, and the result [...]

Electrohydrodynamic Micro-droplet Generation on Both Conducting and Non-conducting Surfaces by Electric Induction

Lee B-S, Lee J-G, Lee B-S, Lee J-G, Cho H.-J., Huh N., Ko C., Samsung Advanced Institute of Technology, KR

There is a rapid growing need of the drop-based delivery of small quantities of bio-functional materials, such as cells. We report a brand-new printing method to generate a single droplet in the range of pL [...]

Reinforcement of Abrasion Resistance & Heat Buildup for Tire Tread filled with Multi-Wall Carbon Nanotubes (MWCNTs)

Oh W.S., Choi W.J., Choi Y.H., Choi W.J., Choi Y.H., Park J., Lee Y-S, NANOHUB Co., Ltd, KR

A tire tread composites containing SBR/NR rubber blend and varying proportions of multi-wall carbon nanotubes (MWCNTs)/carbon black (CB) including a silane-coupling agent [Bis-(3-triethoxysilylpropyl)tetrasulfane] have been investigated in order to reinforce abrasion resistance

Fabrication Processes and Multi-functional Properties of Carbon Nanotube/Inorganic Nanocomposites

Hong S.H., Korea Advanced Institute of Science and Technology, KR

Molecular level mixing process was developed for the fabrication of homogeneous carbon nanotube(CNT)/Inorganic nanocomposites instead of the conventional powder mixing process in order to solve the agglomeration of CNTs and weak interfacial bonding between CNTs [...]

Transparent film sensor for strain measurement using carbon nanotube networks

Chang W.-S., Song S.-A., Kim J.H., Kim J.W., Kim J.H., Kim J.W., Lee H-C, Han C-S, Korea Institute of Machinery and Materials, KR

Since the carbon nanotube was reported by Iiijima, it has been intensively studied due to their great potential in nanoelectronics and nanomechanical devices. Recently, experimental results show that sing-wall carbon nanotubes (SWCNTs) change their electronic [...]

Chirality Separation of single walled carbon nanotube using microfluidic

Han C-S, Shin D-H, Kim J-E, Shim H-C, Kang J-M, Baek S-H, Korea Insitute of Machinery & Materials, KR

Carbon nanotubes were separated by dielectrophoresis in a micro-fluidics chip, which is easy to scale-up the process. We used the H-filter with micro size channels, which have two inlets and two outlets. In this experiment, [...]

Kinetic Monte Carlo Study on Carbon Trapping Effect with Pre-amorphized Silicon

Park S., Cho B., Won T., Inha University, KR

We report our kinetic Monte Carlo (kMC) study of the effect of carbon co-implant on the pre-amorphization implant (PAI) process. We employed BCA (Binary Collision Approximation) approach for the acquisition of the initial as-implant dopant [...]

Dynamic change in water meniscus arising from tapping of an AFM tip

Hong S.D., Choi H.J., Ha M.Y., Jang J., Pusan National University, KR

We perform a molecular dynamics simulation to emulate the retraction followed by re-approach of an AFM with respect to a surface. We found a hysteresis in the snap-off distance and energy during such a tapping [...]

A Study on Numerical Analysis of Stress Distribution for Thermal Nanoimprint Lithography Process

Cho B-G, Won T., Inha University, KR

We investigated the deformation of the viscoelastic polymethyl methacrylene (PMMA) resist wherein a rigid SiO2 stamp with a rectangular line pattern is imprinted for thermal nano-imprint lithography (NIL). We calculated the stress distribution in the [...]

Analysis of the Liquid Mediated Friction during Alignment in NIL Process

Kang S-H, Park S.H., Lee W.I., Seoul National University, KR

When Nano-Imprint Lithography (NIL) process is adopted in the large area applications like display, the stiction phenomenon which is the adhesion or in-plane friction between mold and substrate to disturb fine alignment process can be [...]