ammonia solution, morpholine, diisoproylamine, methanol, diethyl ester,
octylamine, carbon disulfide, methanol, and 1,4-phenylenediamine were
purchased from Merck and used with no further purification. Complete
testing kits from Solaronix containing the TiO2 fluorine-doped
tin oxide (FTO) substrate, platinum FTO, masks, gaskets, HI-30 electrolyte
iodide, chenodeoxycholic acid (CDC), and hot seal were purchased.