Figure 4From: CuInS2 quantum dot-sensitized TiO2 nanorod array photoelectrodes: synthesis and performance optimizationDiffuse reflectance absorption spectra. Bare TiO2 NRAs (curve a) and CuInS2 QD-coated TiO2 NRAs fabricated by the SILAR technique for 3 cycles (curve b), 5 cycles (curve c), 7 cycles (curve d), and 9 cycles (curve e), respectively.Back to article page