Photoluminescence of baratovite and katayamalite |
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Authors: | Aierken Sidike S Kobayashi Heng-Jiang Zhu I Kusachi N Yamashita |
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Institution: | (1) School of Physics and Electronic Engineering, Xinjiang Normal University, Urumqi, 830054, Xinjiang, China;(2) Department of Applied Science, Faculty of Science, Okayama University of Science, Ridai-cho, Okayama 700-0005, Japan;(3) Department of Geology and Paleontology, National Museum of Nature and Science, 3-23-1 Hyakunin-cho, Shinjuku, Tokyo 169-0073, Japan;(4) Department of Physics, Faculty of Education, Okayama University, Tsushima-naka, Okayama 700-8530, Japan; |
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Abstract: | The photoluminescence (PL) and optical excitation spectra of baratovite in aegirine syenite from Dara-i-Pioz, Tien Shan Mts.,
Tajikistan and katayamalite in aegirine syenite from Iwagi Islet, Ehime, Japan were obtained at 300 and 80 K. Under short
wave (253.7 nm) ultraviolet light, baratovite and katayamalite exhibited bright blue-white luminescence. The PL spectrum of
baratovite at 300 K consisted of a wide band with a peak at approximately 406 nm and a full width at half maximum (FWHM) of
approximately 6.32k cm−1. The excitation spectrum of the blue-white luminescence from baratovite at 300 K consisted of a prominent band with a peak
at approximately 250 nm. The PL and excitation spectra of katayamalite were similar to those of baratovite. The luminescence
from these minerals was attributed to the intrinsic luminescence from the TiO6 center. |
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