VIBRATIONAL SPECTROSCOPY OF AS-PREPARED AND ION-IRRADIATED GLYCINE FILMS

被引：8

作者：

FOTI, AM

BARATTA, GA

LETO, G

STRAZZULLA, G

机构：

[1] IST ASTRON,I-95125 CATANIA,ITALY

[2] OSSERV ASTROFIS CATANIA,I-95125 CATANIA,ITALY

来源：

INFRARED PHYSICS | 1991年 / 31卷 / 05期

关键词：

D O I：

10.1016/0020-0891(91)90031-A

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a study of infrared and Raman spectra of glycine (C2H5O2N) films prepared on silicon substrata and after irradiation with 3 keV He ions. Ion-induced molecular (H-2, NH3, CO2) desorption is demonstrated. The three species are not stochiometrically desorbed, the desorption rate decreases. It vanishes after a fluence of approximately 5.10(16) ions cm-2. Some possible astrophysical implications of the results are also discussed.

引用

页码：511 / 516

页数：6

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