A Simple and Facile Solvothermal Synthesis of Hierarchical PbS Microstars with Multidendritic Arms and Their Optical Properties

Figure 2

(a) XRD patterns of PbS samples with different reaction time: 0.5 h (curve a), 1 h (curve b), 2 h (curve c), 4 h (curve d), 8 h (curve e), and 16 h (curve f). (b) FT-IR spectra of pure diphenylthiocarbazone (a) and PbS samples taken out at different time intervals: 0.5 h (curve b), 1 h (curve c), 2 h (curve d), 4 h (curve e), 8 h (curve f), and 16 h (curve g). (c) XRD patterns of PbS samples prepared at different reaction temperature: 140°C (curve a), 160°C (curve b), 200°C (curve c), and 220°C (curve d).

(a)

(b)

(c)