研究了不同衬底上纳米金刚石膜场电子发射性质.纳米金刚石膜是用热灯丝化学气相沉积法合成的.反应气体是CH4、H2和N2的混合物.得到的纳米金刚石膜利用扫描电子显微镜和拉曼谱等进行检测和表征.场发射是在压强为106Pa的真空室进行测量的.实验结果表明,在纳米金刚石膜上涂有碳纳米管展显了更低的开启电场,它比碳纳米管,Mo上纳米金刚石及Si上纳米金刚均要低得多.但Mo和Si上纳米金刚石要比Si上多晶金刚石开启电场低.文中对实验结果进行了讨论.
参考文献
| [1] | Zhu W;Stoner B R;Williams B E et al.Grawth and characterization of diamond films on nondiamond substrates for electron applications[J].IEEE,1991,79(05):621. |
| [2] | Wang W L;Liao K J;Feng B et al.Piezoresistivety of P-type heteroepitaxial diamond films on Si (100)[J].Diamond and Related Materials,1998,7:528. |
| [3] | Wang B B;Wang W L;Liao K J et al.Theoretical studies on diamond nucleation on silicon by biased hot filament chemical Vapor deposition[J].Physical Review B,2001,63(08):08542-1. |
| [4] | 孔春阳,王万录,廖克俊,马勇,王蜀霞,方亮.金刚石膜压阻效应的理论研究[J].中国科学A辑,2001(12):1135-1141. |
| [5] | Fang L;Wang W L;Liao K J et al.Piezoresistive effect in P-type Polycrgstalline dianond films[J].Journal of Applied Physics,1999,86(09):5185. |
| [6] | Wang W L;Liao K J;Cai C Z et al.Ultraviolet electro luminescence at room temperature, from a pn junction of heteroepieaxial diamond films by CVD[J].Diamond and Related Materials,2003,12:295. |
| [7] | Kong C Y;Wang W L;Liao K J et al.Magnetoresistive effect in P-type semicondacting diamond films[J].Journal of Applied Physics,2002,91(05):3044. |
| [8] | huang Z H;Cutter P H;Miskovsky N M et al.Theoretical study of field emission from diamond[J].Applied Physics Letters,1994,65(20):2562. |
| [9] | Liao MY.;Wang WL.;Liao KJ.;Zhang ZG. .Field-emission current from diamond film deposited on molybdenum[J].Journal of Applied Physics,1998(2):1081-1084. |
| [10] | 王万录,廖克俊,胡成果,方亮.Field Emission from Nanostructured Carbon Films on Si Tips[J].中国物理快报(英文版),2001(08):1132-1134. |
| [11] | Geis M W;Efremow N N;Krohn K E et al.A new surface electron-emission mechanism in diamond cathodes[J].Nature,1998,393(04):431. |
| [12] | WANG Wanlu,Liao Kejun,LIU Gaobin,MA Yong.Field emission from Si tips coated with nanocrystalline diamond films[J].重庆大学学报(英文版),2003(02):39-42. |
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