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. 2016 Feb 19;6:21302. doi: 10.1038/srep21302

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Copyright © 2016, Macmillan Publishers Limited

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(a) Raman spectra in the range of 330–480 cm⁻¹ for Li₂S-P₂S₅ glasses. Black, blue, and green lines represent 75Li₂S, 70Li₂S, and 67Li₂S glasses, respectively. The spectra in the range of 400–560 cm⁻¹ are enlarged in the inset for clarity. (b) Spectral decomposition of Raman spectrum for 70Li₂S glass. Blue line, experimental data; dotted lines, the fitting result for all PS polyhedra (right-blue), PS₄ (black), P₂S₇ (red), and P₂S₆ (blue) anions. (c) PS_x polyhedral fractions for Li₂S-P₂S₅ glasses derived from Raman spectra (open marks) and DFT/RMC model (filled marks).