Recent Progress in Fundamental Understanding of Halide Perovskite Semiconductors

Publication date: Available online 9 July 2019Source: Progress in Materials ScienceAuthor(s): Kai Wang, Dong Yang, Congcong Wu, Mohan Sanghadasa, Shashank PriyaAbstractThe rapid progress in the field of organic-inorganic halide perovskite (OIHP) has led to not only>24% power conversion efficiency for photovoltaics, but also provided breakthroughs in processing of materials with tailored functional behavior. This ability to design and synthesize engineered OIHP materials has opened the possibility to develop various other optoelectronic applications. In addition to that of photovoltaics, this includes photodetector, laser, light emitting diode, X-ray and gamma detector, photocatalyst, memory, transducer, transistor, and more. At this stage, the emphasis is on fundamental understanding of the underlying physics and chemistry of OIHP materials, which will assist the evaluation of device performance and provide explanations for some of the contradictory results reported in literature. This review discusses the theoretical and experimental analysis of the OIHP materials reported from various sources and considers the chemical and structural origin of their unique optoelectronic properties, correlated microstructures, and newly discovered extraordinary properties. In the first few sections, we summarize and discuss the crystallography, chemical bonding, and substitutional effects, followed by the discussion of correlated photophysics including the optical, electronic, excitonic, ch...
Source: Progress in Materials Science - Category: Materials Science Source Type: research