근적외선 분광법을 이용한 고순도 SiCl4 중의 미량 불순물 SiHCl3의 분석
Analysis of Trace Trichlorosilane in High Purity Silicon Tetrachloride by Near-IR Spectroscopy
분석과학 / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2002, v.15 no.1, pp.13-90
박찬조
(한국화학연구원)
이석근
(한국화학연구원)
박찬조,
&
이석근.
(2002). 근적외선 분광법을 이용한 고순도 SiCl4 중의 미량 불순물 SiHCl3의 분석. , 15(1), 13-90.
Abstract
The content of $SiHCl_3$ as a trace impurity in $SiCl_4$ was analyzed by Near IR spectrophotometer with optical fiber. The strong absorption bands of $5345{\sim}5116cm^{-1}$ and $4848{\sim}4349cm^{-1}$ were used for analysis of $SiHCl_3$, and the detection limit of impurity $SiCl_3$ was appeared to be 0.005 % in the spectrum. The quantitative analysis by Near IR spectrophotometry showed the analytical possibility of trace impurity in $SiCl_4$ without sample pre-treatment not only in the laboratory but also in the field.
- keywords
-
near IR,
optical fiber,
silicon tetrachloride,
trichlorosilane