National Renewable Energy Laboratory
Abstract: Photovoltaic (PV) devices based on metal halide perovskite (MHP) absorbers have reached outstanding performance over the past few years, surpassing power conversion efficiency of over 25% for lab cells and with large area devices in excess of 18%. For the solar application stability, the most demanding requirement to assess for PV and remains the outstanding issue for MHP based devices. The problem of stability motivates basic science driven work on MHP based PV at NREL and work by industrial partners. Material and device insight can enable MHP PV stability along with the associated opportunities to further improve efficiency with multijunction while maintaining scalability and manufacturability is critical. This talk will highlight the latest work at NREL to develop understanding of critical roadblocks, aspects of solar cell performance, device architectures, stability and operational dynamic to enable the next generation of photovoltaics.
All lectures are via Zoom.
If you would like to be invited to attend the colloquium via Zoom, please contact Dan Adams (firstname.lastname@example.org) or Serena Eley (email@example.com) for the link.
Bio: Joseph Berry is a senior scientist at the National Renewable Energy Laboratory working on halide perovskite solar cells. His PhD for work was on spin transport and physics in semiconductor heterostructures from Penn State University. His efforts at NREL emphasize relating basic interfacial properties to technologically relevant device level behaviors in traditional and novel semiconductor heterostructures including oxides, organics and most recently hybrid semiconducting materials. He leads the US Department of Energy (DOE) Solar Energy Technology Office’s SETO core technology program, “De-risking Halide Perovskite Solar Cells” at NREL. He is a principle investigator on the NREL lead Department of Energy, Center for Hybrid Organic Inorganic Semiconductors for Energy (CHOISE) Energy Frontier Research Center, exploring basic aspect of hybrid materials and is the director of the newly formed U.S. Manufacturing of Advanced Perovskites (U.S. MAP) consortium a collaboration between industry academia and the national labs to bring perovskite technologies to market.