Proceedings of MATSUS Spring 2024 Conference (MATSUS24)
DOI: https://doi.org/10.29363/nanoge.matsus.2024.500
Publication date: 18th December 2023
The Internet of Things (IoT) has recently emerged as a technology with immense potential societal impacts. However, powering IoT devices presents a key challenge. Indoor photovoltaics (IPV), offering the potential for self-powered and low-maintenance IoT devices, may be a promising solution. Concurrently, driven by the need for tandem structure, wide-gap perovskite semiconductors are emerging. The optimal bandgap for IPV devices (1.8 – 1.9 eV) is considerably wider than most traditional solar materials but in accordance with existing wide-gap perovskites.
In this talk we discuss the performance of various wide-gap perovskite IPVs as model systems under spectrophotometrically calibrated indoor light conditions and compares them to thermodynamic performance predictions. Computational simulations indicate trap-assisted recombination as a primary loss mechanism in current perovskite IPVs. To support further advancement in the field, a computational tool is provided to extrapolate calibrated solar (AM1.5G) measurements for benchmark performance estimates at a range of indoor conditions. This work highlights the need for standardized characterization methods and suggests pathways for device optimization to unlock the full potential of perovskite IPVs for a future of sustainable, self-powered IoT devices
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