New Probe for Porcelain Glazes by Luminescence at Near-Infrared Excitation.
New Probe for Porcelain Glazes by Luminescence at Near-Infrared Excitation.
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新型近红外激发发光陶瓷釉探针。
DOI:
10.1021/acsomega.1c00322
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发表时间:
2021-03-23
期刊:
影响因子:
4.1
通讯作者:
Unno M
中科院分区:
文献类型:
--
作者:
Kamura S;Tani T;Matsuo H;Onaka Y;Fujisawa T;Unno M
Raman spectroscopy is a powerful technique for a wide range of materials, including porcelain, and near-infrared excitation is often used to suppress a fluorescence background from a sample. When we measured the Raman spectra of porcelains at 785 nm excitation, we observed a strong broad band in a high-frequency region, and its origin was not clearly elucidated. In this study, we have measured the spectra of glazed porcelains at 532, 785, and 1064 nm excitation and demonstrated that the broad feature originates from luminescence around 880 nm and not from Raman scattering. We provide experimental evidence showing that the band originates from a thin layer of glaze. Since the band shape depends on the processing temperature, the luminescence spectra can be a nondestructive probe for studying the glass formation of a glaze.
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