In recent years, many laboratories, businesses, and academic organizations have been competing to increase the efficiency of solar cells in producing clean electricity. This is accomplished by experimenting with novel physical materials and establishing methods and algorithms that allow for the understanding and monitoring of these cells' physical and electrical properties throughout the production process. This book is part of this framework for studying photovoltaic cells and discovering the internal and environmental elements that influence their performance. It introduces developed numerical approaches for quickly and reliably estimating these parameters.Four chapters in the book cover the modeling and optimization of electrical and physical characteristics in silicon and polymer cells. It's also looking at how electrical measurements affect the precision of the characteristics in future solar cell generations. Several confirmed and published results in this book will help researchers better understand the intrinsic phenomena of new photovoltaic cells. It presents scientific and technical perspectives likely to interest future researchers in the photovoltaics field.