Photovoltaics covers an extremely wide range of different fields of science and technology that are in a state of continuous development and improvement for decades. Solar cells and models that have been developed to the level of industrial production or prototype samples, as well as the devices of exploratory types are divided into the so-called generations of photovoltaics. Chapters, which concern the problems of the first, second and third generations of solar cells are included in the relevant three books of this edition
