ABSTRACT
Bandgap Semiconductors .....................................................................................236 7.2.6 Two Photoelectrode Cells ..................................................................................... 240 7.2.7 Semiconductor Nanoparticles .............................................................................. 242 7.2.8 Effi ciency of Hydrogen and Oxygen Generation by Water Splitting ............. 244
7.3 Oxides .................................................................................................................................. 246 7.3.1 Titanium Oxide ...................................................................................................... 246 7.3.2 Strontium Titanate ................................................................................................. 247 7.3.3 Oxides with NaOH and Carbonates ................................................................... 248 7.3.4 Oxynitrides and Doping with Other Anions .................................................... 251
7.3.4.1 Tantalum Oxynitride .............................................................................253 7.3.5 Niobates, Titanates, and Layered Compounds ..................................................253
7.4 Cadmium Sulfi de ...............................................................................................................255 7.5 Photosynthesis and Photoelectrochemistry, and Approaches Based on
