Abstract
Water colloids of indium oxide were synthesized by laser ablation in liquids (LAL). TEM measurements have shown the formation of indium oxide nanoparticles with a bimodal distribution, consisting mainly of particles of small diameters (2–5 nm) accompanied by larger nanoparticles (about 10–20 nm in diameter).These colloidal solutions have been used to deposit films on interdigitated substrates in order to fabricate carbon monoxide resistive sensors. In2O3(LAL) films-based sensors have shown good performances, indicating that LAL is a very promising technique for the synthesis of metal oxide nanoparticles for gas sensing.
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