Figure 10.

(a) Schematic (left) and SEM image (middle) of the twisted CNT/N719 working electrode and carbon nanotube/poly-vinylidene fluoride (CNT/PVDF) counter electrode. A typical density–voltage (J–V) curve (right) with improved performance after modification of the working electrode; (b) Schematic fabrication process (left) and SEM image (middle) of photo electrochemical cells with a primary electrode of Ti wire, light absorption layer of CdSe nanowire, and counter electrode of CNT. J–V curves under dark and light conditions of different fiber cells using a CNT yarn and Pt wire counter electrode; (c) Schematic (left) and SEM image (middle) of wire shaped dye-sensitized solar cells with twisted CNT fiber. Current density-voltage curves for a wire-shaped DSC (right); (d) Schematic diagram of double twisted solar cell supported by the CNT fiber and the chemical structure of the perovskite material (left). The SEM image shows twisted fibrous solar cells (middle). The current J–V curve is shown for electrical performance (right). Reprinted from [38,99,175,178] with permissions by Royal Society of Chemistry, Copyright 2012, 2012 and by ACS Publications, Copyright 2013 and by John Wiley & Sons, Copyright 2015.