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원뿔형 CNT-W 팁의 TiN 완충막 유무에 따른 전계방출 특성Effects of TiN bufer on field emission properties of conical-type tungsten tips with carbon nanotubes coated
- Other Titles
- Effects of TiN bufer on field emission properties of conical-type tungsten tips with carbon nanotubes coated
- Issue Date
- Jul-2007
- Publisher
- 대한전기학회
- Citation
- 2007년도 대한전기학회 하계학술대회 논문집, pp 1271 - 1272
- Pages
- 2
- Indexed
- OTHER
- Journal Title
- 2007년도 대한전기학회 하계학술대회 논문집
- Start Page
- 1271
- End Page
- 1272
- Abstract
- Experimental results regarding to the structural properties of carbon nanotubes (CNTs) and the field-emission characteristics of CNT-coated tungsten (W) tips are presented. CNTs are successfully grown on conical-type W-tips by inductively coupled plasma-chemical vapor deposition (ICP-CVD) with or without inserting a TiN-buffer layer prior to the formation of Ni catalysts. For all the CNTs grown, their nanostructures, morphologies, and crystalline structures are analyzed by FESEM, HRTEM, and Raman spectroscopy. Furthermore, the emission properties of CNT-based field-emitters are characterized to estimate the maximum current density and the threshold voltage. The results obtained in this study indicate that the emission current level of the CNT-emitter without using a TiN buffer is desirable for the application of micro-focused x-ray systems.
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Related Researcher
- PARK, JIN SEOK
- ERICA 공학대학 (SCHOOL OF ELECTRICAL ENGINEERING)