BiOI: Self‐Powered Humidity Sensor and Breath Monitor
Source abstract
Abstract
Abstract The self‐powered, adaptable, quick, and precise humidity sensors are required to measure humidity in the microenvironment. Here, a simple one‐step wet chemical method is presented to prepare stacked layered bismuth oxyiodide (BiOI) nanoplates. The remarkable response and self‐powered behavior of BiOI nanoplates‐based humidity sensors are demonstrated for the first time. The humidity sensing characteristics of BiOI are examined within the range of 30–80% relative humidity (RH) at an operating temperature of 323 K. The highest sensitivity level of 39 kΩ per %RH is determined for a relative humidity of 75.5%. A successful attempt is made to use this sensor as a human breathing process monitor. The sensor response times at room temperature in this test are 3.04(9) s at 0 V and 3.31(7) s at 20 V, whereas the recovery times are estimated to be 6.57(6) s at 0 V and 6.42(4) s at 20 V. Future advancements in sensing devices utilizing BiOI hold the potential to yield highly responsive, ultrafast sensors with simplified device geometries, and self‐powered.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Gas Sensing Nanomaterials and Sensors · Advanced Chemical Sensor Technologies · Advanced Sensor and Energy Harvesting Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Institute of Physics – Centre for Science and Education Silesian University of Technology Krasińskiego 8 Katowice 40‐019 Poland
Institute of Physics – Centre for Science and Education Silesian University of Technology Konarskiego 22B Gliwice 44–100 Poland
Institute of Materials Engineering Faculty of Science and Technology University of Silesia 75 Pułku Piechoty 1a Chorzów 41–500 Poland
Department of Physics Faculty of Science University of Hradec Králové Rokitanského 62 Hradec Králové 500 03 Czech Republic
Faculty of Materials Engineering Silesian University of Technology Krasińskiego 8 Katowice 40‐019 Poland
Funding
Silesian University of Technology
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