Fig. 1From: Enhance photoelectrochemical hydrogen-generation activity and stability of TiO2 nanorod arrays sensitized by PbS and CdS quantum dots under UV-visible lightThe top (a) and cross-section (b) FESEM images of pristine TiO2. The cross-section FESEM of TiO2 (c) after depositing PbS and CdS QDS. XRD patterns (d) of FTO glass and TiO2/PbS/CdSBack to article page