Raman spectra of diamond and diamondlike thin films

• Main Authors: Chou Hsiu-ling, 周秀玲
• Other Authors: K. C. Lee
• Format: Others
• Language: zh-TW
• Published: 1998
• Online Access: http://ndltd.ncl.edu.tw/handle/23289973241873038527

碩士 === 國立中央大學 === 物理研究所 === 87 === Diamond thin films produced by MPECVD and PLD methods are characterized by Raman spectroscopy. Both the characteristic peaks of graphite (at 1580 cm-1)and diamond (at 1332 cm-1) are seen, indicating the films consist of both types of structures. For B-doped films, which are expected to become a p-type semiconductor, the diamond peak shifts to a low frequency at 1316 cm-1, showing a reduction in the phonon interaction strength. The effect of the growth-time on the films structure will also be presented.