Seoul National University – Page 3

A Permselective Layered Silicate Modified by Acid-treatment and Its Use for Blocking of Methanol Crossover in DMFC

Yoo H., Kim J.H., Kwak S-Y, Seoul National University, KR

Layered silicates currently find uses in ion-exchange, adsorption, catalysis and fabrication of nanocomposites. Several layered silicates have channel systems or open frameworks within layers. They can be used to solve the problem for direct methanol [...]

Crystal-like growth of metal oxide/CNT composite with electroplated “seed”

Kim W-J, Kim Y.H., Jang E.Y., Seo D.K., Kang T.J., Jin K.C., Jeong D.H., Kim W-J, Kim Y.H., Seoul National University, KR

In this study, we developed a novel assembly technique for macroscopic one-dimensional metal oxide/CNT composites. An essential feature of the technique lies in the use of non-aqueous electrolyte in place of the usual aqueous electrolyte [...]

Novel metal nanoslit by dewetting of thermally activated Au film on CNT

Im H., Seoul National University, KR

It has been studied by many research groups to fabricate nano-sized hole or slit array of metal film. By using various fabrication methods, such as photolithography, and nano-imprint, have been studied. However, there still remain [...]

Ag-TiO2 Coated Polyurethane Composite Nanofiber Web for Application in the Protection against Chemical and Biological Warfare Agent

Ryu S.-Y., Choi W.H., Ahn C.H., Kwak S-Y, Seoul National University, KR

Threats of chemical warfare (CW) and biological warfare (BW) agents are serious international problems. It is positively necessary to protect humankind against CW/BW agents. The objective in this work is to develop protective clothing that [...]

Poly(vinyl chloride)/TiO2 nanocomposite resin via the synthesis of TiO2 nanoparticles in vinyl chloride followed by in situ suspension polymerization

Yoo H., Kwak S-Y, Seoul National University, KR

Various methods are established and implemented to prepare polymer/TiO2 nanocomposites, but the choice of preparation method is limited in the case of most frequently used commodity polymers such as PVC, because of their enormous production [...]

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 [...]

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 [...]

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 [...]

Analysis of density variation for different temperatures in thermal nano imprinting process

Lee D.E., Lee H.J., Lee W.I., Lee D.E., Lee H.J., Lee W.I., Choi S-W, Lee D.E., Lee H.J., Lee W.I., Seoul National University, KR

Density variation of the polymer resist for different temperatures in thermal nano imprinting1 process was studied by both experiments and molecular dynamics (MD) simulations. After patterning, we estimated the local density by measuring the pull-off [...]

Nano-scaled water ejection using Nanopipette with QTF-AFM for Nanolithography

An S.M., Jang S.J., Noh H.E., Jhe W.H., Seoul National University, KR

We demonstrated that the apex of nanopipette with applying electric field could be used as a nano-scaled water ejection system using AFM(Atomic Force Microscopy) System based on QTF(Quartz Tunning Fork), namely nanolithography system. The tip [...]