Nano Pt-decorated transparent solution-processed oxide semiconductor sensor with ppm detection capability.

ABSTRACT: In this study, we fabricated a transparent Pt-decorated indium gallium zinc oxide (IGZO) thin film based on a solution process to demonstrate a portable, low-cost volatile organic compound (VOC) based real-time monitoring system with the detection capability at as low as 1 ppm. The Pt/IGZO sensor shows remarkable response characteristics upon exposure of isobutylene (2-methylpropene) gas down to 1 ppm while also maintaining the reliability and reproducibility of the sensing capability, which is almost comparable to a commercial VOC sensor based on a photoionization detector (PID) method. For 1 ppm of isobutylene gas, the response and recovery time of the sensor estimated were as low as 25 s (S ₉₀) and 80 s (R ₉₀), respectively. The catalytic activity of

SUBMITTER: Kang J 

PROVIDER: S-EPMC9062710 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature