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Open AccessArticle

Raman Spectra of Quartz and Pb4+-Doped SiO2 Crystals at Different Temperature and Pressure

1
College of Physics Science and Technology, Shenyang Normal University, Shenyang 110034, China
2
Experimental Teaching Center, Shenyang Normal University, Shenyang 110034, China
*
Authors to whom correspondence should be addressed.
Crystals 2019, 9(11), 569; https://doi.org/10.3390/cryst9110569
Received: 9 October 2019 / Revised: 27 October 2019 / Accepted: 28 October 2019 / Published: 30 October 2019
(This article belongs to the Special Issue Raman Spectroscopy of Crystals)
In order to seek for new Raman crystals, the manuscript presented the discussion on the Raman frequency of α-quartz, β-quartz, as well as Pb4+-doped SiO2 crystals at different temperature and pressure. The results demonstrated that as the pressure increased, the Raman lines shifted towards higher frequency for α-SiO2 crystal, while for β-SiO2 crystals, the main lines moved to lower frequency. Several new peaks were generated from the Pb4+-doped α-SiO2 crystals. The Pb4+-doped β-SiO2 crystals presented strong and ample Raman beams in the low-frequency range. The airfoil-shaped spectra appeared and broadened at high temperature and pressure. It could be inferred that the Pb4+-doped SiO2 crystals were excellent Raman crystal candidates. View Full-Text
Keywords: Raman spectrums; quartz crystals; Pb4+-doped SiO2 crystals Raman spectrums; quartz crystals; Pb4+-doped SiO2 crystals
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MDPI and ACS Style

Chen, X.; Feng, W.; Zhang, G.; Gao, Y. Raman Spectra of Quartz and Pb4+-Doped SiO2 Crystals at Different Temperature and Pressure. Crystals 2019, 9, 569.

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