Publication date: 17th February 2025
As a technology metal halide perovskite (MHP) , photovoltaics continue to rapidly advance and offer a unique opportunity to impact electrical generation at scale. While advances in efficiency, both for single junction and tandem devices, continue there is a need for more rapid improvements in stability to enable commercialization. Studies examining stability have longer learning cycles and are challenging to understand in part due to a myriad of experimental protocols and conditions. We will discuss work examining operational stability of fielded devices and connections with device stability tested indoors. We also will indicate the challenge associated with sample variation and a lack of reproducibility which create challenges in understanding of basic degradation modes. The extent to which these can be overcome by aggregating data and improving device process reproducibility is an ongoing activity at NREL and we will discuss some of our efforts in this regard. The basic considerations associated with the material defect chemistry and its links to the device physics will also be discussed.
This work was authored bythe National Renewable Energy Laboratory, operated byAlliance forSustainable Energy, LLC, for the U.S. Department ofEnergy (DOE) under Contract No. DE-AC36-08GO28308. Funding provided by U.S. Department of Energy Office of Energy Efficiency and Renewable Energy, Solar Energy Technologies Office (SETO) project “Perovskite Enabled Tandems.”
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