Photoluminescence properties of anthophyllite |
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| Authors: | Aierken Sidike Nuerrula Jilili S Kobayashi K Atobe Nobuhiko Yamashita |
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| Institution: | (1) School of Mathematics, Physics and Information Sciences, Xinjiang Normal University, 830054 Urumqi, Xinjiang, China;(2) Department of Applied Science, Faculty of Science, Okayama University of Science, Ridai-cho, Okayama 700-0005, Japan;(3) Department of Physics, Faculty of Education, Okayama University, Tsushima-naka, Okayama 700-8530, Japan; |
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| Abstract: | The photoluminescence (PL) spectra, optical excitation spectra and PL decay curves of anthophyllite from Canada were obtained
at 300 and 10 K. The MnO content in the sample, determined using an electron probe microanalyzer, was high at 5.77 wt%. In
the PL spectra obtained under 410-nm excitation, bright red bands with peaks at 651 and 659 nm were observed at 300 and 10 K,
respectively. The origin of the red luminescence was ascribed to Mn2+ in anthophyllite from the analysis of the excitation spectra and PL decay times of 6.1–6.6 ms. In the PL spectra obtained
under 240-nm excitation at 300 K, a small violet band with a peak at 398 nm was observed. On the violet band at 10 K, a vibronic
structure was observed. The origin of the violet luminescence was attributed to a minor impurity in anthophyllite. |
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