采用带有半封闭式气体循环系统的100千瓦级直流电弧等离子体喷射CVD设备制备三组不同质量的金刚石膜,通过532 nm激光激发金刚石膜的拉曼光谱时,除1332 cm-1金刚石一阶拉曼峰外还出现了1420 cm-1宽峰,本文针对这一峰位的由来及分布进行研究.结果表明,增加或降低拉曼激发波长该峰为都不复存在,不符合材料的拉曼特征频移与激发波长无关这一原则,证明其并非本征拉曼峰;采用488 nm激发和514 nm激发时拉曼光谱分别出现了与1420 cm-1峰型一致的3125 cm-1和2060 cm-1峰,将拉曼频移转换为波长后发现,三个峰位都对应于波长575 nm(2.156eV);575 nm为金刚石膜荧光光谱中常见峰位,对应于氮杂质相关的[N-V]0中心,这表明含氮杂质金刚石膜采用532nm激发时产生的1420 cm-1峰是[N-V]0相关的氮杂质引起的荧光峰;采用532 nm对金刚石膜形核面和生长面的拉曼面扫描结果表明,[N-V]0相关的氮杂质存在于金刚石膜表面晶粒与晶界各处,并存在一定程度的偏聚.
参考文献
| [1] | S. -Tong Lee;Zhangda Lin;Xin Jiang .CVD diamond films: nucleation and growth[J].Materials Science & Engineering, R. Reports: A Review Journal,1999(4):123-154. |
| [2] | Vogelgesang R.;Rodriguez S.;Grimsditch M.;Anthony TR.;Ramdas AK. .BRILLOUIN AND RAMAN SCATTERING IN NATURAL AND ISOTOPICALLY CONTROLLED DIAMOND[J].Physical Review.B.Condensed Matter,1996(6):3989-3999. |
| [3] | Coe S.E. .Optical, thermal and mechanical properties of CVD diamond[J].Diamond and Related Materials,2000(9-10Sep/Oct):1726-1729. |
| [4] | Cui JB.;Ristein J.;Ley L.;Amtmann K. .Noncontact temperature measurements of diamond by Raman scattering spectroscopy[J].Journal of Applied Physics,1998(12):7929-7933. |
| [5] | Ferrari AC;Robertson J .Origin of the 1150-cm(-1) Raman mode in nanocrystalline diamond[J].Physical Review.B.Condensed Matter,2001(12):1405-1-1405-4-0. |
| [6] | 阎研,张树霖,郝少康,刘尔凯,韩毅松,玄真武,顾长志,刘维,丁明清.CVD金刚石膜中1145cm-1拉曼峰的研究[J].光散射学报,2004(02):131-135. |
| [7] | 杨胶溪,吕反修,李成明,陈广超,左铁钏.高质量CVD金刚石自支撑膜的连续激光损伤研究[J].激光与红外,2005(06):430-432. |
| [8] | Fayette L.;Mermoux M.;Tourillon G.;Laffon K.;Parent P.;Le Normand F.;Marcus B. .Local order in CVD diamond films: Comparative Raman, x-ray-diffraction, and x-ray-absorption near-edge studies[J].Physical Review.B.Condensed Matter,1998(22):14123-14132. |
| [9] | H. Chen;K. Chu .Effective thermal conductivity of Cu/diamond composites containing connected particles[J].Materials Science and Technology: MST: A publication of the Institute of Metals,2011(3):713-716. |
| [10] | S. M. Leeds;T. J. Davis;P. W. May;C. D. O. Pickard;M. N. R. Ashfold .Use of different excitation wavelengths for the analysis of CVD diamond by laser Raman spectroscopy[J].Diamond and Related Materials,1998(2/5):233-237. |
| [11] | K. Beha;A. Batalov;N.B. Manson;R. Bratschitsch;A. Leitenstorfer .Optimum Photoluminescence Excitation and Recharging Cycle of Single Nitrogen-Vacancy Centers in Ultrapure Diamond[J].Physical review letters,2012(9):97404.1-97404.5. |
| [12] | 吕反修.大面积光学级金刚石自支撑膜制备、性能及其在高技术领域应用前景[J].中国表面工程,2010(03):1-9,13. |
| [13] | M. C. Roosi;S. Salvatori;F. Galluzzi;F. Somma;R. M. Montereali .Diamond photoluminescence spectra: dependence on excitation energy and microstructure[J].Diamond and Related Materials,1998(2/5):255-260. |
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%