Table 5.
Sensing Material | Measurement Type | RH Range (% RH) | Response/Sensitivity | Response and Recovery Time | Refs |
---|---|---|---|---|---|
CdS | Resistive | 17–85% | NA | ~60 s | [36] |
CdS/Polyaniline | Resistive | 11–95% | NA | ~8 s | [37] |
CdS | Resistive | 5–99% | ~60% (response) |
~55 s (normal)~3 s (forced) | [38] |
SnS nanoflake | Current | 3–99% | 2,491,000% (response) |
6/4 s | [107] |
SnS2 | Resistive | 2–99% | 154,000% (response) |
13.2/0.87 s | [108] |
CZTS | Resistive | 10–90% | 10.77 MΩ/%RH | 7.4/58.1 s | [109] |
[(Me3)DAB(Me3)] PbI4·H2O | Current | 10–100% | ~1,000,000% (response) |
NA | [39] |
SnO2/grapheme oxide | Capacitance | 11–97% | 1604.89 pF/%RH (sensitivity) |
102/6 s | [102] |
T3C2/polyelectrolyte | Resistive | 10−70% | 1600% (response) |
110/220 ms | [103] |
Ti3C2/TiO2 Composite | Capacitance | 7−97% | 1614 pF/% RH | 0.5/2 s | [104] |
CoTiO3/TiO2 Composite | Resistive | 11–95% | 15,723% (response) |
NA | [105] |