Lee S.J. – TechConnect Briefs

Improvement of contact resistance in transparent thin film transistor by applying an Al/SWCNTs bilayer as electrodes

Lee S.J., Yonsei University, KR

SWCNTs have various bandgaps so that they show metal as well as semiconductor characteristic. However, it is difficult to separate the metallic and the semi-conducting SWCNTs. Also, the high contact resistance at the interface between [...]

In situ monitoring of temperature and voltage in lithium-ion rechargeable batteries using flexible micro two-in-one sensors

Lee C.-Y., Lee S.J., Lee C.-Y., Lee S.J., Tang M-S, Chen P-C, Chang Y-M, Yuan Ze University, TW

Under overcharge conditions, the interior temperature of polymer lithium-ion rechargeable batteries will rapidly increase. Such batteries are adopted in electric vehicles that require rapid charging and discharging, and this process causes rapid heating, raising safety [...]

Characteristics of co-doped device with hole and electron transport material

Park N.R., Ryu G.Y., Lim D.H., Lee S.J., Kim Y.K., Shin D.M., Hong-ik University, KR

We demonstrated green organic lighte-emittin diodes (OLEDs) improved by co-doped using hole transport material, N′-bis-(1-naphyl)-N,N′-diphenyl-1,1′-biphenyl-4,4′-diamine (NPB) and electron transport material, bis(2-methyl-8-quninolinato)-4-phenylphenolate aluminum (Balq), into emitting layer. The co-doped materials impove charge blance by injecting hole [...]

Europium-doped gadolinium sulfide nanoparticles as a multimodal imaging agents for bio-application

Park J.K., Lee S.J., Korea Research Institute of Chemical Technology, KR

Most of the magnetic nanoparticles based on iron oxides have been widely used experimentally for numerous in vivo applications such as magnetic resonance imaging (MRI) contrast enhancement, tissue repair, hyperthermia, medical diagnostics, and therapeutics. These [...]

Growth and optical properties of high-density InN nanodots

Ke W.C., Lee S.J., Lee T.C., Kao C.Y., Chen W.K., Cheng Y.C., Chou W.C., Chang W.H., Lin J.C., Lin W.J., Cheng Y.C., Lee S.J., Lee T.C., Lin J.C., Lin W.J., Yuan Ze University, TW

High density InN/GaN nanodots were successfully grown by pulsed mode (PM) metal organic chemical vapor deposition (MOCVD). InN nanodots density of up to ~5×1010 cm-2 at a growth temperature of 550 ℃ was achieved The [...]

Biological influence of nanofibrous hydroxyapatite-polycaprolactone membrane on human periodontal ligament cell

Kim H.W., Kim T.I., Lee S.J., Ku Y., Rhyu I.C., Chung C.P., Han S.B., Kim H.W., Kim T.I., Seoul National University, KR

This study was performed to evaluate the effect of hydroxyapatite-coated nanofibrous polycaprolactone membrane on proliferation and differentiation of periodontal ligament cell which is necessary for periodontal regeneration. Hydroxyapatite-coated nanofibrous polycaprolactone membrane was fabricated through electrospinning [...]

Authors: Lee S.J.

Improvement of contact resistance in transparent thin film transistor by applying an Al/SWCNTs bilayer as electrodes

In situ monitoring of temperature and voltage in lithium-ion rechargeable batteries using flexible micro two-in-one sensors

Characteristics of co-doped device with hole and electron transport material

Europium-doped gadolinium sulfide nanoparticles as a multimodal imaging agents for bio-application

Growth and optical properties of high-density InN nanodots

Biological influence of nanofibrous hydroxyapatite-polycaprolactone membrane on human periodontal ligament cell

Label-Free Protein Nano-Biosensor Using Top-Down Fabrication

Microchannel Reactor Stacked by Brazing Method

Modeling and Simulation of a Permanent Magnet Array in Elliptical Configurations