Electrochemical Epitaxial Growth of TiO₂/CdS/PbS Nanocables

Figure 5

UV-Vis absorption spectra of TiO₂ NRs (black line); TiO₂/CdS deposited with CdS for 5 min (blue line), 10 min (green line), and 20 min (red line); and TiO₂/CdS/PbS deposited with CdS for 10 min and PbS for 10 min (wine line). The electrolyte for CdS contained 0.2 M of Cd(NO₃)₂ and 0.2 M of thiourea; the electrolyte or PbS contained 0.1 M of Cd(NO₃)₂ and 0.1 M of thiourea.