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Hot-Walled PLD법을 이용한 은도핑된 나노선의 특성분석
김경원(Kyoungwon Kim),박동훈(Dong-Hoon Park),플락(Pulak Chandra Debnath),김상식(Sangsig Kim),이상렬(Sang Yeol Lee) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.11
1, 3 and 5 weight % Ag doped zinc oxide (ZnO) nanowires (NWs) were grown on the (0001) plane of sapphire substrate by hot-wall pulsed laser deposition (HW-PLD) with Au catalyst at 800℃. The process condition for the doped ZnO NW formation is optimized by adjusting the kinetic energy and the flux of the laser ablated particles by hot-wall control. Variation of structural and optical properties of various NWs are investigated depending on the growth kinetics by changing target to substrate distance scanning electron microscopy (SEM), transmittance electron microscopy (TEM) and photoluminescence (PL). PL spectra of the multiple doped NWs measured at different temperatures ranging from 13 to 300 K were studied experimentally and theoretically in order to investigate the p-type behavior indicated by the acceptor-bound excitons.
Electrical Property of Field Effect Transistor using ZnO Nanowire
이동윤(Dong-Yun Lee),김경원(Kyoungwon Kim),박동훈(Dong-Hoon Park),이상렬(Sang Yeol Lee) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.7
Ga and Ag doped ZnO nanowires (NWs) were fabricated by using a physical vapor method with a Hot-walled pulse laser deposition (HW-PLD). The doped ZnO NWs were compared with pure ZnO NWs in order to analyze variation crystalline, growth direction and doping effect of each dopant. The doped ZnO NWs were measured with structural, optical and electrical properties.
H.264 정수변환 및 양자화를 위한 VLIW ASIP 프로세서
양승준 ( Seungjun Yang ),박상현 ( Sanghyun Park ),허인구 ( Ingoo Heo ),김용주 ( Yongjoo Kim ),김경원 ( Kyoungwon Kim ),백윤흥 ( Yunheung Paek ) 한국정보처리학회 2009 한국정보처리학회 학술대회논문집 Vol.16 No.2
H.264 비디오 코덱은 비디오 어플리케이션 중에서 중요한 역할을 차지하고 있다. 본 논문에서는 H.264 의 여러 과정 중에서 정수 변환 및 양자화 과정을 효과적으로 처리하기 위한 VLIW ASIP 아키텍처를 제안한다.