• 대한기계학회:학술대회논문집
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• 대한기계학회 2007년도 춘계학술대회A
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• pp.215-219
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• 2007

In this work, the indium zinc oxide (IZO) films had been deposited on the glass substrate coated with the SiO film. Based on a comparative investigation of the IZO monolayer and IZO/SiO multilayer, it is shown that the thickness of SiO film has a great effect on the mechanical properties of the thin films. The AFM images of the IZO thin film included the SiO film were shown smoother surfaces than monolayer. Resistivity was in inverse proportion to Mobility. If it deposited the SiO film on the substrate, the layer of change was generated between two layer(SiO and substrate). The layer of change influenced resistance because of oxygen content was more than the IZO monolayer.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2011년도 춘계학술대회 초록집
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• pp.96.2-96.2
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• 2011

Water transport through the microporous membrane was modeled considering capillary condensation as well as capillary flow in porous media as a function of pore diameter and relative humidity at the surface. The present model was adopted by the numerical simulation of non-isothermal, non-homogenous flow in a shell and tube typed gas to gas membrane humidifier for PEMFC (proton exchange membrane fuel cell) and the result shows good agreement with experimental data.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2013년도 제44회 동계 정기학술대회 초록집
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• pp.596-596
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• 2013

본 연구에서는 Carbon nanotube 용액을 brush-painting 시스템을 이용하여 유연성 있는 PET 기판 위에 고품위의 플렉시블 투명전극을 제작하였다. CNT 박막의 두께에 따른 특성을 알아보기 위해 brushing 횟수를 증가시켜 UV/Vis Spectrometry, four-point probe 및 Hall measurement를 이용하여 전기적, 광학적특성을 알아보았다. 최적조건인 bilayer의 CNT 박막은 244 Ohm/sq.의 면 저항과 550 nm에서 68％의 투과도를 얻을 수 있었다. CNT 박막의 기계적 응력에 따른 전기적 안정성을 알아보기 위해 bending test를 진행하였다. 10,000번 구부려도 저항의 변화가 거의 없어 이 박막이 플렉시블한 소자에 적합하다는 것을 알았다. 유기태양전지의 적용 가능성을 알아보기 위해 CNT 박막을 유기태양전지의 anode 층으로 적용하여 1.6％ (VOC: 0.566(V), $J_{SC}$: 7.118(mA/$cm^2$), Fill Factor: 40.49(％))의 효율을 얻어 유기태양전지 소자의 적용 가능성을 알았다. 최종적으로 실험에서 성막된 CNT 박막은 기존의 CVD공정과 같은 복잡한 공정 대신에 쉽고 간편하게 고품위의 flexible brush-painting Carbon nanotube (CNT) 투명전극을 제작 하여 플렉시블한 유기태양전지 소자의 가능성을 알아보았다.

• 한국실내디자인학회논문집
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• 제14권6호
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• pp.185-192
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• 2005

The Tabernacle was Personally designed by God and was ordered from God to Moses to build it as the first Piece of church architecture that accurately showed God's love and will of salvation towards humankind. Tabernacles, through the architecture of tabernacles teaches the Lord being among us. His Holiness and man's sins, and also reflects the path of eternity as well as the good news and salvation through Jesus Christ. And the Tabernacle is talking of the Glory of New Jerusalem that is provided Kingdom of Heaven for us at the same time being a completion of a final and ultimate church constructed long predicted through the Bible being already designed by God. The external expression of modern architecture may follow the uniqueness of that age but the special quality of the interior and exterior symbolism of church architecture will have to consist the standards of God for He is the first, sincere designer.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 1995년도 추계학술대회 논문집
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• pp.273-276
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• 1995

In this paper, the response characteristics of organic gases were investigated by using quartz crystal microbalance(Q.C.M) with different coating materials. The method for pattern was discussed in order to develope gas sensing system using neural network and pattern recognition. we analyzed the response characteristics by the area of frequency shift, which mean affinities of gases for coating material. The results shows that the Parameter made by the area of frequency shift has possibility to be used for pattern recognition and neural network. we found that each gas had different decrease pattern for coating material.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 1997년도 춘계학술대회 논문집
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• pp.91-94
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• 1997

$\alpha$-sexithienyl($\alpha$-6T) thin films were deposited by Organic Molecular Beam Deposition(OMBD) technique, where the $\alpha$-6T was synthesized and purified by the sublimation method. The thin films of the $\alpha$-6T were deposited under various deposition conditions. The effects of deposition rate, substrate temperature. and vacuum pressure an the formation of these films have been studied. The molecular orientations of $\alpha$-6T films were investigated with the polarized electronic absorption spectroscopy. The molecules in the $\alpha$-6T film deposited at a low deposition rate under a high vacuum were aligned almost perpendicular to the substrate. The film deposited at an elevated substrate temperature (~9 $O^{\circ}C$) showed higher conductivity than the film deposited at room temperature.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2010년도 하계학술대회 논문집
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• pp.253-253
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• 2010

The Polymer/MWCNT composite films were fabricated by air-spray method under the 2 kg/$cm^2$ pressure using the multi-walled CNTs solution and the polymer on a $50{\mu}m$ kepton film substrates. We obtained the composite films which were sprayed with the MWCNT dispersion. In order to analysis the microstructure for the fabricated Polymer/MWCNT film, we used the X-ray diffraction (XRD) and SEM.

• 한국광학회:학술대회논문집
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• 한국광학회 2007년도 동계학술발표회 논문집
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• pp.255-256
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• 2007

• 대한전기학회:학술대회논문집
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• 대한전기학회 1995년도 추계학술대회 논문집 학회본부
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• pp.417-419
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• 1995

Polymer-coated piezoelectric crystals were applied to analyze response characteristic of organic gases. AT-cut quartz crystal with 9 MHz resonant frequency can measure mass of 1 nanogram. Flow type gas-sensing system was used in this experiment. Flow type gas-sensing system has very simple apparatus and shows very fast frequency response for injection of organic gas. We have made parameter using relaxation ratio of frequency response for organic gas. Consequently, we found that the parameter had no relation with quantity of gas injection and dipping.

• 한국막학회:학술대회논문집
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• 한국막학회 1994년도 춘계 총회 및 학술발표회
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• pp.38-38
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• 1994

일반적으로 다공성 비대칭막은 상분리법에 의하여 제조하는데, 분리막을 구성하는 고분자를 적절한 용매에 녹인 제막용액을 일정한 두께로 casting하고 이를 비용매에 담가서 binodal/spinodal decomposition이 일어나도록 하여 제조한다. 이 방법으로 제조된 다공성 분리막의 성능은 표면층에 존재하는 pore의 크기와 그 분포 및 porosity에 의해 결정된다. 표면층의 pore size와 분포를 조절하기 위하여 그간 고분자 용액내의 고분자 농도조절, 첨가제의 사용, 비용매의 조성을 바꾸는 등의 여러가지 방법에 대한 연구가 진행되어 왔다. Casting된 고분자 용액을 비용매에 침잠시켜 다공성막을 형성시킬 경우 막의 표면과 비용매 사이의 계면에서 용매와 비용매의 교환이 일어난다. 용매-비용매 교환이 일어나면 제막된 고분자 용액이 열역학적으로 불안정해져 상분리가 일어난다. 이 때 용매-비용매의 교환이 매우 빠른 속도로 일어나 pore-size의 분포를 조절하기가 매우 어렵다.