Perovskite solar cells (PSCs) have attracted increasing interest from researchers due to their superb power conversion efficiencies. The intrinsic trap defects, unavoidably formed in the fabrication process, can induce nonradiative recombination, ion migration, I-V hysteresis, and instability of PSCs. However, trap defects are not always harmful. Fully understanding the fundamentals of trap defects as well as the passivation and doping strategies is helpful for further improving device efficiency and stability. This book summarizes the methods and strategies of defect passivation and material doping aiming to clearly describe the underlying mechanisms for high-efficiency and stable PSCs.

• Introduces the fundamental characteristics of perovskite material defects

• Discusses the main strategies, principles, and applications of defect passivation

• Describes defect passivation consequences and characterization methods

• Covers principles, methods, and applications of doping engineering in perovskites

• Explores the structural design, advantages, characteristics, fabrication methods, and future development of perovskite homojunction

Engineers and researchers working with photovoltaic generation, solar cells, semiconductors, and related topics will find this book to be an invaluable resource.

Meicheng Li (李美成) is a Fellow of the Royal Society of Chemistry, a Yangtze River Scholars Distinguished Professor of Ministry of Education, the Director of the New Energy Materials and Devices Research Center, and the Dean of the School of New Energy, North China Electric Power University. He obtained his Ph.D. at Harbin Institute of Technology in 2001. From 2004 to 2006, he worked at the University of Cambridge as a Research Fellow. Prof. Li was awarded as one of the Excellent Talents in the New Century by the Ministry of Education in 2006, as one of the One Hundred Science and Technology Leaders in Beijing in 2017, and as one of the Science and Technology Innovation Talents by the Innovation Talent Promotion Plan of the Ministry of Science and Technology in 2018. He has contributed more than 300 journal articles, and has performed the review services for about 150 SCI journals. Prof. Li is also the Vice Chairman of IEEE PES Energy Development and Power Generation Technology Committee, the Chairman of Energy Storage Materials and Devices Technology Sub-committee, the Standing Director of China Renewable Energy Society, the Deputy Director of Photovoltaic Special Committee, the Deputy Director of Intelligent Energy and Industry Zero-Carbonization Development Committee of China Energy Research Society, the Director of New Energy and Carbon Neutrality Committee of China High-tech Industrialization Research Society, an Executive Fellow of the China Energy Society, and a Fellow of Chinese Society for Optical Engineering.