2022
DOI: 10.3390/micro2010012
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Stable Cu2P3I2 and Ag2P3I2 Single-Wire and Thin Film Devices for Humidity Sensing

Abstract: Cu2P3I2 wires were synthesized and converted to Ag2P3I2 via post-synthetic modification. Single-wire and thin film devices were constructed from each material and evaluated as rapidly reversible humidity sensing semiconductors. All devices exhibited a dramatic increase in current when exposed to a ~30.85% RH (~9745.3 ppm by moisture volume) atmosphere compared to that of dry N2. Cu2P3I2 devices exhibited greater sensitivity compared to their respective Ag2P3I2 analogs with the highest being the thin film at 2.… Show more

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Cited by 3 publications
(1 citation statement)
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“…During the test, corresponding humidity atmospheres were achieved through saturated binary salt solutions and were prepared in scintillating vials with specific humidity values according to Greenspan's least squares equations. [ 67,68 ] As shown in Figure S9 (Supporting Information), as the temperature increases, the responses increase from 14% at 10 °C to 30% at 48 °C, even though the humidity of atmospheres decreased from 86.8% to 81.2%. This can be explained as the negative temperature coefficient of the MXene nanosheets.…”
Section: Resultsmentioning
confidence: 99%
“…During the test, corresponding humidity atmospheres were achieved through saturated binary salt solutions and were prepared in scintillating vials with specific humidity values according to Greenspan's least squares equations. [ 67,68 ] As shown in Figure S9 (Supporting Information), as the temperature increases, the responses increase from 14% at 10 °C to 30% at 48 °C, even though the humidity of atmospheres decreased from 86.8% to 81.2%. This can be explained as the negative temperature coefficient of the MXene nanosheets.…”
Section: Resultsmentioning
confidence: 99%