Solution Processed CH3NH3PbI3–xClx Perovskite Based Self-Powered Ozone Sensing Element Operated at Room Temperature
Titanium
Electric Conductivity
Temperature
Reproducibility of Results
Oxides
02 engineering and technology
Calcium Compounds
Sensitivity and Specificity
7. Clean energy
01 natural sciences
0104 chemical sciences
Ozone
Lead
Semiconductors
Electric Impedance
0210 nano-technology
DOI:
10.1021/acssensors.7b00761
Publication Date:
2017-12-01T11:58:51Z
AUTHORS (7)
ABSTRACT
Hybrid lead halide spin coated perovskite films have been successfully tested as portable, flexible, operated at room temperature, self-powered, and ultrasensitive ozone sensing elements. The electrical resistance of the hybrid lead mixed halide perovskite (CH3NH3PbI3-xClx) sensing element, was immediately decreased when exposed to an ozone (O3) environment and manage to recover its pristine electrical conductivity values within few seconds after the complete removal of ozone gas. The sensing measurements showed different response times at different gas concentrations, good repeatability, ultrahigh sensitivity and fast recovery time. To the best of our knowledge, this is the first time that a lead halide perovskite semiconductor material is demonstrating its sensing properties in an ozone environment. This work shows the potential of hybrid lead halide based perovskites as reliable sensing elements, serving the objectives of environmental control, with important socioeconomic impact.
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