Beilstein J. Nanotechnol.2016,7, 1507–1518, doi:10.3762/bjnano.7.144
the use of combined heating and pulsedUVlight activation of indium oxide gas sensors for enhancing their performance in the detection of nitrogen dioxide in air. Indium oxide nano-octahedra were synthesized at high temperature (900 °C) via vapour-phase transport and screen-printed onto alumina
transducers that comprised interdigitated electrodes and a heating resistor. Compared to the standard, constant temperature operation of the sensor, mild heating (e.g., 100 °C) together with pulsedUVlight irradiation employing a commercially available, 325 nm UV diode (square, 1 min period, 15 mA drive
light, which convey important information for the quantitative analysis of nitrogen dioxide.
Keywords: dynamic gas sensing; indium oxide; nitrogen dioxide; pulsedUVlight; UV-activated metal oxide; Introduction
Technological barriers related to sensor performance and power consumption are currently
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Figure 1:
SEM micrograph of as-grown indium oxide nano-octahedra.