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. 2015 Jun 4;5:10978. doi: 10.1038/srep10978

Figure 1. Raman spectroscopy characterization of Sb-S precursor solutions with varied S/Sb ratios.

Figure 1

A) a digital picture of the Sb-S precursor solutions with varied S/Sb ratios (values marked on the vial). B) Multi-peak fitting of the Raman peaks obtained from the Sb-S precursor solution with an S/Sb molar ratio of 3.5. C) Raman spectra of Sb-S precursor solutions with different S/Sb molar ratios from 3.5 to 8. The insert was the magnified spectra of the S-H peaks at 2560 cm−1. D) The integrated intensities of the peaks for the Sb-S complex (•), and the S-H bond (■) as a function of the S/Sb molar ratio.