This book provides a comprehensive overview of the state-of-the-art solutionprocessed solar cell technologies, including copper-based chalcogenide solar cells, colloidal quantum dot solar cells, dye-sensitized solar cells, perovskite-based cells and organic- and polymer-based cells. The book covers the latest advancements in each technology, highlighting challenges and presenting opportunities for advancement and applications. The discussions are based on the fundamental chemistry and physics of the materials and how their properties can be exploited for use in solution-processed technologies. It introduces and intertwines fundamental concepts with practical experimental approaches and outcomes, and discusses the tools and chemical approaches that a materials chemist uses to develop emerging PV technologies. The book serves as a reference text for researchers who work with photovoltaic technologies, including chemists, device physicists/engineers and materials scientists. It also acts as valuable supplementary reading for courses on materials and device design for advanced and future optoelectronics. Pedagogical features include working mechanisms with illustrations, step-by-step guides for using various solution-processing approaches, case studies and chapter summaries.