ABSOLUTE RAMAN-SCATTERING CROSS-SECTIONS OF TRIMETHYLGALLIUM AND TRIMETHYLALUMINUM IN THE VAPOR-PHASE

被引：5
|
作者：
SANO, H
MIZUTANI, G
USHIODA, S
机构：
[1] Research Institute of Electrical Communication, Tohoku University, Aoba-ku, Sendai, 980
来源：
CHEMICAL PHYSICS LETTERS | 1992年 / 194卷 / 4-6期
关键词：
D O I：
10.1016/0009-2614(92)86072-P
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
By using a Raman spectrometer system whose absolute sensitivity is calibrated, we have measured the absolute Raman scattering cross sections of trimethylgallium (TMG) and trimethylaluminum (TMA) in the vapor phase. The measured cross sections are (d-sigma/d-OMEGA)gasTMG = 1.3 x 10(-29) cm2/molecule sr line and (d-sigma/d-OMEGA)gasTMA = 2.6 x 10(-29)) cm-2/dimer sr line for the 2912 cm-1 line of TMG and the 2900 cm-1 line of TMA, respectively. From these cross sections we can deduce that the molecular vibrations of a monolayer of TMG or TMA on a GaAs substrate should be observable by Raman scattering.
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页码：398 / 402
页数：5
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