지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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Multi-walled carbon nanotubes (MWCNTs) were synthesized using catalytic chemical vapor deposition (CVD) method. Oxygen plasma treatment was applied to modify surface state of the CNTs synthesized for improvement of field emission performance. Surface state of the plasma treated CNTs was studied by X-ray photoelectron spectroscopy (XPS). The surface states of the CNTs were changed as a function of plasma treatment time. The oxygen related carbon shift was moved toward higher binding energy with the plasma treatment time. This result implies that the oxygen plasma treatment changes the surface state effectively. While any shift in carbon 1s peak was not detected for the as grown CNTs, oxygen related carbon shift was detected for the plasma treated CNTs. Carbon shift implies that closed CNT tips were opened by the oxygen plasma and reacted with oxygen species. Since the field emission occurs at pentagons or dangling bonds of the CNT tips, the increase of carbon-oxygen bonds plays an important role in field emission behavior by increasing the number of electron emission sites resulting in improvement of the field emission performance.
목차
Abstract
1. 서론
2. 실험
3. 결과 및 고찰
4. 결론
References
참고문헌 (12)
참고문헌 신청
1. [학술지(정기간행물)] - A.G. Rinzler / 1995 / Unraveling Nanotubes: Field Emission from an Atomic Wire / Science 269 : 1550 ~ 1553
2. [학술지(정기간행물)] - A. Bachtold / 2001 / Logic Circuits with Carbon Nanotube Transistors / Science 294 : 1317 ~ 1320
3. [학술지(정기간행물)] - X. Sun / 2005 / Prediction of stiffness and strength of single-walled carbon nanotubes by molecular-mechanics based finite element approach / Materials Science and Engineering: A 390 (1) : 366 ~ 371
4. [학술지(정기간행물)] - Y. Saito / 2000 / Field emission from carbon nanotubes and its application to electron sources / Carbon 38 : 169 ~ 182
5. [학술지(정기간행물)] - M. Chhowalla / 2001 / Growth process conditions of vertically aligned carbon nanotubes using plasma enhanced chemical vapor deposition / J. Appl. Phys. 90 : 5308 ~ 5317
2. [학술지(정기간행물)] - A. Bachtold / 2001 / Logic Circuits with Carbon Nanotube Transistors / Science 294 : 1317 ~ 1320
3. [학술지(정기간행물)] - X. Sun / 2005 / Prediction of stiffness and strength of single-walled carbon nanotubes by molecular-mechanics based finite element approach / Materials Science and Engineering: A 390 (1) : 366 ~ 371
4. [학술지(정기간행물)] - Y. Saito / 2000 / Field emission from carbon nanotubes and its application to electron sources / Carbon 38 : 169 ~ 182
5. [학술지(정기간행물)] - M. Chhowalla / 2001 / Growth process conditions of vertically aligned carbon nanotubes using plasma enhanced chemical vapor deposition / J. Appl. Phys. 90 : 5308 ~ 5317
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UCI(KEPA) : I410-ECN-0101-2014-560-000235061