The course introduces basics and fundamentals of electrochemistry, photochemistry, photoconversion and thermoelectric conversion. It will cover structure, material, evaluation and application of various devices including fuel cells, bio-fuel cells, photoelectrochemical cells, electrocatalysts, photocatalysts, photoelectrocatalysts, bio-electrocatalysts, solar cells, batteries, supercapacitors, thermoelectric generators, electrochemical and resistive sensors as well as biosensors.