Professor Mathew White
Organolead halide perovskites are perhaps the most highly promising class of materials for next generation photovoltaics (PV). The recent demonstration of extremely high power conversion efficiency in perovskites sparked a widespread shift in the PV research communities searching for next generation materials. 1,2
In this talk I will summarize the fundamental reasons why perovskite materials appear so promising for large-scale energy production. I will also highlight some of the very real problems that remain unsolved. In our recent work, we demonstrate that the thin-film crystallization kinetics are of paramount importance for uniformity and reproducibility. Furthermore, by making steps towards improving the operational stability of the cells, we open the potential to make real-world demonstrations of the perovskite technology, including flexible, stretchable, and light-weight solar cells with the highest power-per-weight of any solar technology.3
1. Lee, M. M., Teuscher, J., Miyasaka, T., Murakami, T. N. & Snaith, H. J. Efficient Hybrid Solar Cells Based on Meso-Superstructured Organometal Halide Perovskites. Science 338, 643–647 (2012).
2. Liu, M., Johnston, M. B. & Snaith, H. J. Efficient planar heterojunction perovskite solar cells by vapour deposition. Nature 501, 395–398 (2013).
3. Kaltenbrunner, M. et al. Flexible high power-per-weight perovskite solar cells with chromium oxide–metal contacts for improved stability in air. Nat Mater 1–10 (2015). doi:10.1038/nmat4388.
Post time: Feb-09-2017