Perovskite-inspired photovoltaic materials [electronic resource] : Toward best practices in materials characterization and calculations [Perovskite-inspired photovoltaic Best practices in materials characterization and calculations].
- Washington, D.C. : United States. Dept. of Energy. Office of Basic Energy Sciences, 2017.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
- Physical Description:
- pages 1,964-1,988 : digital, PDF file
- Additional Creators:
- SLAC National Accelerator Laboratory
United States. Department of Energy. Office of Basic Energy Sciences
United States. Department of Energy. Office of Energy Efficiency and Renewable Energy
United States. Department of Energy. Office of Scientific and Technical Information
- Recently, there has been an explosive growth in research based on hybrid lead–halide perovskites for photovoltaics owing to rapid improvements in efficiency. The advent of these materials for solar applications has led to widespread interest in understanding the key enabling properties of these materials. This has resulted in renewed interest in related compounds and a search for materials that may replicate the defect-tolerant properties and long lifetimes of the hybrid lead-halide perovskites. Given the rapid pace of development of the field, the rises in efficiencies of these systems have outpaced the more basic understanding of these materials. Measuring or calculating the basic properties, such as crystal/electronic structure and composition, can be challenging because some of these materials have anisotropic structures, and/or are composed of both heavy metal cations and volatile, mobile, light elements. Some consequences are beam damage during characterization, composition change under vacuum, or compound effects, such as the alteration of the electronic structure through the influence of the substrate. These effects make it challenging to understand the basic properties integral to optoelectronic operation. Compounding these difficulties is the rapid pace with which the field progresses. This has created an ongoing need to continually evaluate best practices with respect to characterization and calculations, as well as to identify inconsistencies in reported values to determine if those inconsistencies are rooted in characterization methodology or materials synthesis. This article describes the difficulties in characterizing hybrid lead–halide perovskites and new materials and how these challenges may be overcome. The topic was discussed at a seminar at the 2015 Materials Research Society Fall Meeting & Exhibit. This article highlights the lessons learned from the seminar and the insights of some of the attendees, with reference to both recent literature and controlled experiments to illustrate the challenges discussed. The focus in this article is on crystallography, composition measurements, photoemission spectroscopy, and calculations on perovskites and new, related absorbers. Finally, we suggest how the reporting of the important artifacts could be streamlined between groups to ensure reproducibility as the field progresses.
- Published through SciTech Connect.
Chemistry of Materials 29 5 ISSN 0897-4756 AM
Robert L. Z. Hoye; Philip Schulz; Laura T. Schelhas; Aaron M. Holder; Kevin H. Stone; John D. Perkins; Derek Vigil-Fowler; Sebastian Siol; David O. Scanlon; Andriy Zakutayev; Aron Walsh; Ian C. Smith; Brent C. Melot; Rachel C. Kurchin; Yiping Wang; Jian Shi; Francisco C. Marques; Joseph J. Berry; William Tumas; Stephan Lany; Vladan Stevanović; Michael F. Toney; Tonio Buonassisi.
- Funding Information:
View MARC record | catkey: 24060488