ch. 1. Principles and systems in light-induced energy conversion -- ch. 2. Nanodimensioned systems based on semiconductor-oxide : metal-electrolyte contacts -- ch. 3. Physics of electrolyte-metal-oxide-semiconductor (EMOS) contacts in nanodimensions -- ch. 4. Electrocatalysis on nanodimensioned EMOS contacts -- ch. 5. Electronics and chemistry of electrolyte-metal-oxide-semiconductor contacts -- ch. 6. Optical effects : current approaches and future directions.