KR – TechConnect Briefs

Molecular Dynamics Simulation Study on Nanoelectromechanical Oscillator based on Graphene Nanoflake

Kwon O-K., Kang J-W, Semyung University, KR

Recently graphene has also been highlighted as an ideal lubricant for microelectromechanical systems (MEMSs) and nanoelectromechanical systems (NEMSs), where ‘traditional’ lubricants no longer function normally. Atomic-scale graphene can be fabricated using micro- mechanical chop crack, [...]

Resuable Moth-Eye nano-patterned PDMS sticker with a versatile function of coating for photovoltaics.

Jung A., Cho S., Kim H., Lee H.Y., Ghymn Y.H., SOOMBI Co., Ltd., KR

In solar photovoltaic systems, enhancing absorption of the incident light on the device surface through reducing reflection is crucial for improving the system performance. In the traditional layered method for anti-reflective coatings (ARCs), however, there [...]

Effects of Heat Treatment of ZnS Nanoparticles Prepared by Hydrothermal Synthesis on Microstructure and Optical Properties in Spark Plasma Sintering (SPS)

Hong Y.W., Yeo S.Y., Paik J.H., Cho J-H., Jeong Y.H., Yun J.S., Park W.I., Korea Institute of Ceramic Engineering & Technology, KR

Zinc sulfide (ZnS) is one of the most widely used infrared transmitting window and lens materials for systems operating in the long wave range (8~12 ㎛). ZnS nanoparticles have been intensively studied because of their [...]

Formation and Modeling of Droplet Ejection for Electrohydrodynamic Inkjet Printing

Choi J., Lee S., Son S.U., Sungkyunkwan University, KR

EHD(Electrohydrodynamic) inkjet printing based on electrospray and EHD discharging for tiny droplet/jet is known to be able to generate higher resolution and higher aspect ratio of patterns than the conventional inkjet printing(Lee, 2014). EHD inkjet [...]

Preparation of charged droplets via electro-hydrodynamic spraying of polyelectrolyte solutions for the removal of floating particles with less than 10 um (PM10)

Lee K-I., Lee K., Lee K-I., Lee K., Kim S., Korea Electronics Technology Institute, KR

Ambient air quality tends to be worse due to the particle pollution in the region where the rapid commercialization is going on. Particulate matter (PM) describes fine inhalable particles with the specific diameter and smaller, [...]

RF passive structures via low temperature direct ink writing of annealing-free composite alloy

Koo B., Dang H.W., Yang Y.-S., ETRI, KR

Recent advances in the field of additive manufacturing have utilized electronic circuits to develop high-valued functional devices. Here we present a novel approach to fabricate viscoelastic polymer-free metal ink and RF passive structures via material-extruded [...]

Development and property modification of composite metal for Material extrusion printed circuit

Dang H.W., Koo B.J., Lee C.W., Yang Y.-S., Electronics and Telecommunications Research Institute, KR

Recently, the proportion of 3D printing technology in the electronics industry is expected to average 50% in 2030. It is expected that the 3D printing manufacturing method will be introduced in earnest depending on the [...]

High-Sensitivity and Low-Hysteresis Inter-digital Type Capacitive Humidity Sensor on Glass Substrate by Aerosol Deposited BaTiO3

Kim E.S., Kim N.Y., Wang C., Wang Z.J., Wang C., Wang Z.J., Yao Z., Liang J.G., Kim E.S., Kim N.Y., Kwangwoon University, KR

A high-sensitivity and low-hysteresis inter-digital type capacitive humidity sensor is fabricated using Aerosol deposition (AD) of BaTiO3 films. Aerosol deposition (AD) uses shock-loading-solidification preparation mechanism as a novel ceramic film preparation technique, exhibiting the advantages [...]

Reusable Biosensor for Detecting Diabetes by Microwave LC Resonator on Integrated Passive Design (IPD) Process

Kim E.S., Kim N.Y., Chuluunbaatar Z., Wang C., Yao Z., Adhikari K.K., Kim E.S., Kim N.Y., Kwangwoon University, KR

This works present a level-free biosensor for detecting diabetes with high sensitivity and rapidity by microwave LC resonator based on integrated passive device (IPD) technology. The structure of the proposed consists of the square meandered [...]

Modeling of polypeptide- and polymer-conjugated nanoparticles for drug delivery application

Lee H.K., Dankook University, KR

Nanoparticles such as liposomes, dendrimers, and carbon nanotubes have many potential biomedical applications as antitumor therapeutics and drug delivery. These applications require the interaction of those with cell membranes, thus interactions of nanoparticles, polymers, and [...]