Effects of ion beam energy on the formation of cubic boron nitride thin films by pulsed Nd:YAG laser deposition

被引:6
作者
Kawasaki, H [1 ]
Doi, K [1 ]
Hiraishi, S [1 ]
Suda, Y [1 ]
机构
[1] Sasebo Natl Coll Technol, Dept Elect Engn, Nagasaki 8571193, Japan
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 2000年 / 39卷 / 7B期
关键词
pulsed laser deposition; cubic boron nitride; thin films; ion beam;
D O I
10.1143/JJAP.39.4525
中图分类号
O59 [应用物理学];
学科分类号
摘要
Cubic boron nitride (cBN) thin films are synthesized on Si(100) substrates by a pulsed neodymium: yttrium-aluminum-garnet (Nd:YAG) laser deposition method using an ion beam in order to enhance the synthesis of the cBN phase. The deposited films were characterized by a Fourier transform infrared (FT-IR) measurement method. When a pure N-2 ion beam is used, some absorption peaks for hexagonal boron nitride (hBN) are visible, but the peak for cBN cannot be observed. When argon(ar) gas is mixed with the reactant nitrogen(N-2) gas, the peak at 1050 cm(-1) for cBN appears, in addition to those of hBN. When the ion-beam current and voltage is increased to 20 mA and 400 V, the absorption peak intensity for cBN increases, and that of hBN disappears. These results suggest that nitrogen and argon ion bombardment plays an important role in the formation of cBN films.
引用
收藏
页码:4525 / 4527
页数:3
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