采用直流反应非平衡磁控溅射技术在单晶Si(100)和玻璃表面沉积氮化钽(Ta-N)薄膜,分别测试了薄膜的结构、成分、电阻率和吸收光谱,研究了氮氩流量比(N2∶Ar)变化对Ta-N薄膜的结构和电学性能的影响.研究结果表明随N2∶Ar增加,依次生成六方结构的γ-Ta2N、面心立方结构(fcc)的δ-TaNx、体心四方结构(bct)的TaNx;N2∶Ar在0.2~0.8的范围内,Ta-N薄膜中只存在着fcc δ-TaNx;当N2∶Ar>1之后,Ta-N薄膜中fcc δ-TaNx和bct TaNx共存.Ta-N薄膜电阻率随N2∶Ar流量比增加持续增加,当N2∶Ar为1.2时,薄膜变为绝缘体,光学禁带宽度为1.51eV.
参考文献
[1] | Gutmann F;Keyzer H.Modern Bioelectrochemistry[M].New York:Plenum Press,1986 |
[2] | Chen J Y;Leng Y X;Tian X B et al.A[J].Biomaterials,2002,23:2545-2552. |
[3] | Shin CS.;Kim YW.;Gall D.;Greene JE.;Petrov I. .Phase composition and microstructure of polycrystalline and epitaxial TaNx layers grown on oxidized Si(001) and MgO(001) by reactive magnetron sputter deposition[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2002(1/2):172-182. |
[4] | Ward L P;Strafford K N;Wilks T P et al.[J].Journal of Materials Processing Technology,1996,56:364-374. |
[5] | Leng Y X;Sun H;Yang P et al.[J].Thin Solid Films,2001,398-399:471-475. |
[6] | 杨文茂,刘艳文,徐禄祥,冷永祥,黄楠.溅射沉积技术的发展及其现状[J].真空科学与技术学报,2005(03):204-210. |
[7] | Chang C C;Jeng J S;Chen J S .[J].Thin Solid Films,2002,413:46-51. |
[8] | Coyne H J;Tauber R N .[J].Journal of Applied Physics,1968,39(12):5585-5593. |
[9] | Stampfl C;Freeman A J .[J].Physical Review B:Condensed Matter,2003,67(06):064108. |
[10] | Yu L;Stampfl C;Marshall D et al.[J].Physical Review B:Condensed Matter,2002,65:245110. |
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%