Self-Powered Sensors Enabled by Wide-Bandgap Perovskite Indoor Photovoltaic Cells
Mathews I, Kantareddy SNR, Sun S, Layurova M, Thapa J, Correa-Baena JP, Bhattacharyya R, Buonassisi T, Sarma S, Peters IM (2019)
Publication Type: Journal article
Publication year: 2019
Journal
Book Volume: 29
Article Number: 1904072
Journal Issue: 42
Abstract
A new approach to ubiquitous sensing for indoor applications is presented, using low-cost indoor perovskite photovoltaic cells as external power sources for backscatter sensors. Wide-bandgap perovskite photovoltaic cells for indoor light energy harvesting are presented with the 1.63 and 1.84 eV devices that demonstrate efficiencies of 21% and 18.5%, respectively, under indoor compact fluorescent lighting, with a champion open-circuit voltage of 0.95 V in a 1.84 eV cell under a light intensity of 0.16 mW cm−2. Subsequently, a wireless temperature sensor self-powered by a perovskite indoor light-harvesting module is demonstrated. Three perovskite photovoltaic cells are connected in series to create a module that produces 14.5 µW output power under 0.16 mW cm−2 of compact fluorescent illumination with an efficiency of 13.2%. This module is used as an external power source for a battery-assisted radio-frequency identification temperature sensor and demonstrates a read range by of 5.1 m while maintaining very high frequency measurements every 1.24 s. The combined indoor perovskite photovoltaic modules and backscatter radio-frequency sensors are further discussed as a route to ubiquitous sensing in buildings given their potential to be manufactured in an integrated manner at very low cost, their lack of a need for battery replacement, and the high frequency data collection possible.
Involved external institutions
United States (USA) (US)How to cite
APA:
Mathews, I., Kantareddy, S.N.R., Sun, S., Layurova, M., Thapa, J., Correa-Baena, J.-P.,... Peters, I.M. (2019). Self-Powered Sensors Enabled by Wide-Bandgap Perovskite Indoor Photovoltaic Cells. Advanced Functional Materials, 29(42). https://doi.org/10.1002/adfm.201904072
MLA:
Mathews, Ian, et al. "Self-Powered Sensors Enabled by Wide-Bandgap Perovskite Indoor Photovoltaic Cells." Advanced Functional Materials 29.42 (2019).
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