P1GS.15 - Sensitive and Selective H2S Gas Detection at Low Temperature Employing In2O3 Quantum Dots

• DOI: 10.5162/imcs2018/p1gs.15
• Publication Date: 2020-12-18T16:33:49Z
• Authors: H. Liu; S. Yang; Z. Song; N. Gao; Z. Hu; Q. Liu; J. Liu; B. Zhang
• Keywords: Operating temperature

Indium oxide (In 2 O 3 ) has been employed for gas sensors as an important candidate.Here we demonstrated the sensitive based on In quantum dots synthesized via solvetheramal methodology.A room-temperature films deposition was utilized sensor fabrication, followed by Cu salt surface ligand exchange with a moderate annealing treatment.The CQD-based exhibited excellent H S-sensing performance response up to 90 upon 5 ppm S fast and recovery time being 72 s 200 at low operating temperature of 37 °C.Their properties combined low-temperature fabrication operation, rendering devices amenable rapid detection lower power consumption in practical application.