Open AccessQUENCHING OF THE FLUORESCENCE BACKGROUND IN Cd0.96Zn0.04Te RAMAN SPECTRUM AT LOW TEMPERATURES
Author(s) -
Pei Hui-Yuan,
Fang Jia-Xiong
Publication year - 2001
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.50.968
Subject(s) - raman spectroscopy , fluorescence , materials science , phonon , quenching (fluorescence) , laser , crystal (programming language) , analytical chemistry (journal) , optics , molecular physics , physics , chemistry , condensed matter physics , chromatography , computer science , programming language
Variation of fluorescence background in the Raman spectrum was investigated versus laser power, which was measured on Cd0.96Zn0.04Te surface at low temperatures. The fluorescence signals “burning out” were observed, accompanied by a red shift of the material's phonon peaks. It was shown that the “burning out” of the fluorescence signals was correlated to the transformation of the crystal surface structure, which was directly indicated by the red shift of the phonons. The exciting laser should be responsible for the structure transformation.