Fig. 2From: Phase-Selective Synthesis of CIGS Nanoparticles with Metastable Phases Through Tuning Solvent CompositionRaman spectra of pure en (purple line), the mixture of en and deionized water (blue line), the solutions of the S precursor in pure en (green line), and the solutions of the S precursor in the mixture of en and deionized water (red line)Back to article page