KR – Page 31 – TechConnect Briefs

Measured and predicted performance of a micro-thermophotovoltaic device with a heat-recirculating micro-emitter

Park J.H., So J.S., Moon H.J., Kwon O.C., Sungkyunkwan University, KR

A new configuration of a 1-10 W micro-thermophotovoltaic (micro-TPV) device with a heat-recirculating micro-emitter is studied experimentally and computationally. In the micro-TPV device thermal energy is directly converted into electrical energy through thermal radiation without [...]

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 [...]

Large Area Replication of AAO Nanostructure Using a Solvent Exchange Method and UV-curable Polymers

Kim J-S, Lee K.B., Lee W., Lee K.B., Lee W., Korea university, KR

We made a successful fabrication of nanopatterns with various UV curable materials, 311RM, Ethylene glycol dimethacrylate (EGDA), 4-hydroxy butyl acrylate (4-HBA) and pyrrole. AAO nanopatterns larger than 5 cm 5 cm were successfully replicated. It [...]

Synthesis of thermal interface material with high thermal conductivity for high efficacy of LED

Han C.J., Han J.-I., Yu S.H., Hong S-J, Kim Y-S, Han C.J., Han J.-I., Korean Electronics Technology Institute, KR

Thermal dissipation problem for LED is critical for high efficacy and reliability. Inorganic filled grease type thermal interface material (TIM) has widespread use for heat management of LED. Conventional TIM materials, however, has relative low [...]

Application of QCM DNA biosensor to detect a marine derived pathogenic virus VHSV

Hong S-R., Hong S., Hong S-R., Hong S., Kangnung National University, KR

Each year infectious diseases cause substantial economic losses for public and commercial aquaculture ventures. VHS is one of most serious viral diseases caused by VHSV and damaging both fresh and marine fish species. Detecting VHSV [...]

Subthreshold Operation of Schottky Barrier Silicon Nanowire FET

Yoo S.K., Ahn J.Y., Yang S., Lee J-H., Gwangju Institute of Science & Technology (GIST), KR

This paper presents that the sensitivity of Schottky barrier silicon nanowires FET (SB-SiNWFET) is strongly modulated by the applied back gate voltage, and reveals that the operation in the subthreshold regime gives the significant enhancement [...]

Energy Conversion according to Impact loading on Piezoelectric material

Lee J., Kim T., Choi B., Sogang University, KR

Energy harvesting using piezoelectric material has been one of the hottest interests in powering wireless sensor nodes without maintenance and replacement of wired or battery power system in ubiquitous era. Unlike most of the previous [...]

Deposition of beta-SiC thin films on Si (100) substrates by MOCVD method for NSOM applications

Nam S-H, Kim M.H., Hyun J.S., Boo J.-H., Sungkyunkwan University, KR

Silicon carbide thin films were deposited on Si(100) substrates by metal-organic chemical vapor deposition(MOCVD) in high vacuum condition(2.010-7 Torr) using 1,3-disilabutane as a single source precursor which contains silicon and carbide in 1:1 ratio at [...]

Effects of centrifugation on the carboxyl modified single-walled carbon nanotubes suspension

Lee B.C., Lee J.A., Lee S.M., Lee Y-H, Lee B.C., Lee J.A., Lee S.M., Lee Y-H, Lee B.C., Lee J.A., Lee S.M., Lee Y-H, Paek K-K, Ju B.K., Lee B.C., Lee J.A., Lee S.M., Lee Y-H, Korea Institute of Science and Technology(KIST), KR

In this paper, the properties of supernatant samples obtained go through steps of acids oxidation and centrifugation is characterized by UV-VIS-NIR spectroscopy and Raman spectroscopy. The ultraviolet-visible-near infrared absorption spectra of each sample show the [...]

Functional nanowire microscopy tip

Kim J., Shin Y-H, Yun J.H., Han C-S, Hyun M.S., Korea Institute of Machinery and Materials (KIMM), KR

Excellent electric conductive nickel silicide (NiSi) nanowire (NW) was aligned on a conventional Si tip and performed as an electric force microscopy (EFM) probe. Single crystalline structured NiSi NW was grown in plasma-enhanced chemical vapor [...]