Figure 4From: A maskless synthesis of TiO2-nanofiber-based hierarchical structures for solid-state dye-sensitized solar cells with improved performancePhotocurrent density-voltage curves and UV–vis spectra of NF- and HNF-based ssDSC. (a) Photocurrent density-voltage characteristics of NF- and HNF-based ssDSC measured under one sun illumination. IPCE spectra of the above-mentioned cells are given in the inset. (b) UV–vis absorption spectra of the amount of dye desorbed from the respective photoanodes.Back to article page