Potential of AgBiI <sub>4</sub> rudorffites for indoor photovoltaic energy harvesters in autonomous environmental nanosensors
Ivan Turkevych, Saïd Kazaoui, Naoki Shirakawa, Nobuko Fukuda
Abstract
Abstract Harvesting of ambient renewable energy resources, such as indoor light, is a viable solution for the development of autonomous, “install-and-forget”, environmental nanosensors. In this work we fabricated and characterized photovoltaic cells based on AgBiI 4 rudorffites as promising indoor photovoltaic energy harvesters demonstrating photoconversion efficiency of 5.17% and power output of 1.76 μ W cm −2 measured under white LED light of 1000 lux. Considering that modern low-power wireless transmitters consume <1 μ J per bit for data transmission, the indoor rudorffite photovoltaic cell combined with a supercapacitor can be used for sensor readout and reliable intermittent data transmission.