利用负偏压增强热丝化学气相沉积系统,在辉光放电的情况下制备出准直碳纳米管,并用扫描电子显微镜研究了不同负偏压对准直碳纳米管生长的影响.结果表明随着负偏压的增大,准直碳纳米管的平均直径减小,平均长度增大.由于辉光放电的产生,在衬底表面附近形成阴极鞘层,以及在阴极鞘层内形成大量的离子和在衬底表面附近形成很强的电场导致了离子对衬底表面的强烈轰击.最后,分析和讨论了离子的轰击对准直碳纳米管生长的影响.
参考文献
| [1] | Iijima S .Helical Microtubules of Griphitic Carbon[J].Nature,1991,354:56-58. |
| [2] | Treacy M M J;Ebbesen T W;Gibson J M .Exceptionally High Young's Modulus Observed for Individual Carbon Nanotubos[J].Nature,1996,381:678-680. |
| [3] | Saito R;Fujita M;Dresselhaus G;Dresselhaus M S .Electronic Structure of Chiral Graphene Tububles[J].Applied Physics Letters,1992,60:2204-2206. |
| [4] | Kukovitsky E. F. .VLS-growth of carbon nanotubes from the vapor[J].Chemical Physics Letters,2000(1/2):65-70. |
| [5] | W.K.Maser;E.Munoz;M.T.Martinez .Study of parameters important for the growth of single wall carbon nanotubes[J].Optical materials,2001(1/2):331-334. |
| [6] | T.S. Wong;C.T. Wang;K.H. Chen .Carbon nanotube growth by rapid thermal processing[J].Diamond and Related Materials,2001(9-10):1810-1813. |
| [7] | Yudasaka M;Kikuchi R;Matsui T .Specific Conditions for Ni Catalyzed Carbon Nanotube Growth by Chemical Vapor Deposition[J].Applied Physics Letters,1995,67:2477-2479. |
| [8] | Wang BB.;Liao KJ.;Xiao JL.;Wang WL. .Experimental and theoretical studies of diamond nucleation on silicon by biased hot filament chemical vapor deposition - art. no. 085412[J].Physical Review.B.Condensed Matter,2001(8):085412-1-085412-12. |
| [9] | M. Chhowalla;K. B. K. Teo;C. Ducati;N. L. Rupesinghe;G. A. J. Amaratunga;A. C. Ferrari;D. Roy;J. Robertson;W. I. Milne .Growth process conditions of vertically aligned carbon nanotubes using plasma enhanced chemical vapor deposition[J].Journal of Applied Physics,2001(10):5308-5317. |
| [10] | Ho Lee;Youn-Seon Kang;Paul S. Lee .Hydrogen plasma treatment on catalytic layer and effect of oxygen additions on plasma enhanced chemical vapor deposition of carbon nanotube[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2002(0):569-573. |
| [11] | Tibberts G G .Why Are Carbon Filaments Tubular?[J].Journal of Crystal Growth,1984,66:632-638. |
| [12] | 张立德;牟季美.纳米材料和纳米结构[M].北京:科学出版社,2001:87. |
| [13] | Kátai S;Tass Z;Hárs G;Deák P .Measurement of Ion Energy Distributions in the Bias Enhanced Nucleation of Chemical Vapor Deposited Diamond[J].Journal of Applied Physics,1999,86:5549-5555. |
| [14] | Jung M;Eun K Y;Bai Y;Lee K, Shin J, Kin S .Effect of NH3 Environmental Gas on the Growth of Aligned Carbon Nanotube in Catalystically Pyrolizing C2H2[J].Thin Solid Films,2001,398-399:150-155. |
| [15] | Holstein WL. .THE ROLES OF ORDINARY AND SORET DIFFUSION IN THE METAL-CATALYZED FORMATION OF FILAMENTOUS CARBON[J].Journal of Catalysis,1995(1):42-51. |
| [16] | 肖纪美.合金相与相变[M].北京:冶金工业出版社,1987 |
| [17] | Kagawa A;Okamoto T .Coefficients for Equilibrium Partition of a Third Element between Solid and Liquid in Iron-carbon Base Ternary Alloys and Their Relation to Graphitization during Iron-carbon Eutectic Solidification[J].Journal of Materials Science,1984,19:2306-2318. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%