金刚石薄膜中SP~2／SP~3键价比拉曼光谱分析

金刚石薄膜中ＳＰ￣２／ＳＰ￣３键价比拉曼光谱分析张兵临Ｈ，Ｍ．Ｐｈｉｌｌｌｉｐｓ（郑州大学物理系郑州４５００５２）ＡｎａｌｙｓｉｓｏｆＳＰ￣２／　ＳＰ￣２／ＳＰ￣３ＢｏｎｄｉｎｇＲａｔｉｏｉｎＤｉａｍｏｎｄＴｈｉｎＦｉｌｍｓｂｙＲａｍａｎＳｐｅｃｔｒ...

Analysis of SP~2／ SP~2／SP~3 Bonding Ratio in Diamond Thin Films by Raman Spectroscopy

Abstract There is only one Raman-active mode of F~(25+)（F_(2g)） （F_(2g)）symmetry in the first order for Sp~3 diamond phase，which is observed at l332cm~(-1)，The E_(2g) modes are Raman active and have been observed at 42 and l 580cm~(_1)for graphite Sp~2 phase. An additional disordered Raman line is at about 1355cm~(-1). In this paper， three of the Raman lines at 1332，1355 1580cm~(-1) are considered to calculate the Sp~2 Sp~3 bonding ratio of polycrystall diamond thin film by using computer fitting.