http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
김창원,박동수,김명규,이정희,강신원,손병기 경북대학교 센서기술연구소 1994 센서技術學術大會論文集 Vol.5 No.1
A Michelson interferometric AC voltage/current sensor has been fabricated by using a single mode optical fiber and a cylindrical PZT of which a radial displacement varies according to applied voltage. A sensor head was fabricated by winding the sensing alai around a cylindrical PZT. An AC voltage, applied to the PZT, could be measured by number of interference fringe variation during one period of AC signal. A primary AC current also could be measured by pick-up coil. The pick-up coil produced a corresponding low level current which was transduced to voltage and applied to the PZT. The measured fringe variation was linearly dependent on the amplitude of the applied voltage but had no relation with frequency. Linear response was obtained in the voltage range of 0~100V.
기판의 재질과 두께가 인쇄된 실버 패턴의 레이저 소결에 미치는 영향
김명기(Myong-Ki Kim),이상호(Sangho Lee),강경태(Kyungtae Kang),강희석(Heuiseok Kang),문승재(Seung-Jae Moon),황준영(Junyoung Hwang) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.11
In this latter, the process of printing and laser curing of nanoparticle solutions was investigated. A drop-on-demand (DOD) inkjet process is utilized to print electrically conducting line patterns from a suspension of silver nanoparticles. The ultra fine particles in the suspension have a diameter size range of 50㎚. Micro droplets of 10 pl volume are generated and deposited on a moving substrate. Focused laser irradiation is utilized in order to cure the nanoparticles to form continuous, electrically conducting silver lines on the glass and PET substrate. Scanning electron microscopy have been employed to investigate the topology of the cured line. Results on the effect of the substrate material and thickness, which is directly related th the electrical conductivity, are reported.
김명기(Myong-Ki Kim),신권용(Kwon-Yong Shin),황준영(Jun Young Hwang),강경태(Kyungsae Kang),강희석(Heuiseok Kang),이상호(Sang-Ho Lee) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.7
In this paper, we have studied the bulging phenomenon of ink-jet printed silver lines. The used silver inks are DGP-40LT-15C and DGH-55HTG of Advanced Nano Product (ANP) Company. We investigated the behavior of bulging by changing the polarity of the inks, the surface energy of substrate and droplet spacing in printing. The contact angle of the polar inks increased much more sensitively than the nonpolar ink as the surface energy of the substrate increases. In the case of the nonpolar ink, the bulging phenomenon occurred seriously as the droplet spacing decreased at the constant surface energy.
유리와 PET 기판에 잉크젯 인쇄된 실버 도선의 레이저 소결
김명기(Myong-Ki Kim),강희석(Heuiseok Kang),강경태(Kyungtae Kang),이상호(Sang-Ho Lee),황준영(Jun Young Hwang),문승재(Seung-Jae Moon) 대한기계학회 2010 大韓機械學會論文集B Vol.34 No.11
잉크젯으로 인쇄된 실버 도선의 레이저 소결에 관한 연구를 수행하였다. 요구적출(DOD) 방식의 잉크젯 프린터를 이용하여 서로 다른 두께의 유리와 PET 기판에 실버 나노 잉크를 이용한 미세 도선을 인쇄하였으며, 인쇄된 실버 도선에 집광된 레이저 빔을 조사하여 소결하였다. 레이저 강도와 조사시간을 달리하여 소결된 실버 도선의 비저항을 측정하였으며, 오븐을 이용한 소결 처리 결과와 비교하였다. 단순화된 이론식으로부터 레이저 강도, 조사 시간, 표면 반사율 및 기판의 물성에 따른 온도 증가를 추산하였으며, 추산된 온도 증가와 레이저 소결에 의한 전기전도도 향상의 관계에 대하여 논의하였다. In this study, the laser sintering of inkjet-printed silver lines was evaluated. Silver-nanoparticle ink and a drop-ondemand (DOD) inkjet printer were used for printing on glass and polyethylene terephthalate (PET) substrates with various thicknesses. To sinter the printed silver nanoparticles, the silver layer printed on the transparent substrates was irradiated by focused CW laser beams that were incident normal to the substrates; the irradiation was carried out for various beam intensities and for various irradiation times. The electrical conductivity of the laser-sintered silver patterns was measured and compared with the conductivity of silver patterns sintered by using an oven. The increase in the temperature caused by laser irradiation was also calculated on the basis of the laser beam intensity, irradiation time, surface reflectivity, and thermophysical property of the substrate in order to estimate the increase in the electrical conductivity caused by laser sintering.
잉크젯 프린팅을 이용한 유기태양전지용 기능성 잉크의 적층
김명기(Kim, Myong-Ki),황준영(Hwang, Jun-Young),이상호(Lee, Sang-Ho),강희석(Kang, Heui-Seok),강경태(Kang, Kyung-Tae),김종석(Kim, Jong-Seok),조영준(Cho, Young-Joon) 한국신재생에너지학회 2008 한국신재생에너지학회 학술대회논문집 Vol.2008 No.05
Inkjet printing is commonly used in the controlled deposition of solutions of functional materials in specific locations on a substrate, and it can provide easy and fast deposition of polymer films over a large area. which could become a way to manufacturer low cost solar cells. In the present study, inkjet printing technology is adopted to deposit functional layers of PEDOT/PSS solutions and P3HT/PCBM blends for organic solar cell. The results show that merging of separately deposited ink droplets into a continuous, pinhole-free organic thin film could be achieved by a balance between ink property and substrate treatment. As a result, a power conversion efficiency of 2.0% has been accomplished a solar cells applying inkjet technology.