http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
오늘 본 자료
미세 팁 기판 위에 전기영동법으로 성장시킨 탄소 나노튜브의 전계방출 특성
장한빛,노영록,김종필,박진석,Chang, Han-Beet,Noh, Young-Rok,Kim, Jong-Pil,Park, Jin-Seok 한국반도체디스플레이기술학회 2010 반도체디스플레이기술학회지 Vol.9 No.4
Field-emission characteristics of carbon nanotubes(CNTs), which were grown on conical-type tungsten micro-tips by using an electrophoretic deposition(EPD) method, were examined. The EPD method proved to be convenient to manipulate and arrange CNTs from well dispersed suspensions onto such tip-type substrates. The growth rate of CNTs was proportional to the applied d.c. bias voltage and the process time. It was observed from the Raman study that the EPDproduced CNTs showed better crystal qualities with the Raman intensity ratio( $I_D$/$I_G$) of 0.41-0.42 than the CVD-produced CNTs and their crystal qualities could be further improved by thermal annealing. The electron emitters based on the EPDCNTs showed excellent field emission properties, such as the threshold voltage for electron emission of about 620 V and the maximum emission current of about 345 ${\mu}A$. In addition, the EPD-CNTs exhibited the stable long-term(up to 40 h) emission capability and the emission stability was enhanced by thermal annealing.
미세 팁 기판 위에 전기영동법에 의해 성장된 탄소 나노튜브의 전계방출 특성
장한빛(Han-Beet Chang),노영록(Young-Rok Noh),김종필(Jong-Pil Kim),박진석(Jin-Seok Park) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.7
We present experimental results regarding to the structural properties and field-emission characteristics of carbon nanotubes(CNTs) which have been grown on conical-type tungsten (W) tips by using an electrophoretic deposition(EPD) method. The EPD method has been shown to be a very convenient methode to manipulate and arrange CNTs from well dispersed suspensions onto conductive substrates. When CNTs is grown by EPD, the thickness of CNTs film was increased by increasing the applied voltage and the process time. The crystalline structure of CNTs is also characterized by Raman spectroscopy. The results obtained in this study indicate that the emission current level of the CNT-emitter grown by EPD is better than growing by ICP-CVD for the application of micro-focused x-ray systems.