TY - JOUR ID - 54179 TI - Synthesis, characterization, and gas sensing properties of In-doped ZnO nanopowders JO - Nanochemistry Research JA - NCR LA - en SN - 2538-4279 AU - Alamdari, Sanaz AU - Sasani Ghamsari, Morteza AU - Jafar Tafreshi, Majid AD - Photonics & Quantum Technologies Research School, NSTRI, Tehran, Iran; School of Physics, Semnan University, Semnan, Iran AD - Photonics & Quantum Technologies Research School, NSTRI, Tehran, Iran AD - School of Physics, Semnan University, Semnan, Iran Y1 - 2017 PY - 2017 VL - 2 IS - 2 SP - 198 EP - 204 KW - Acetone KW - Gas Sensor KW - Indium ions KW - Zinc oxide DO - 10.22036/ncr.2017.02.006 N2 - Indium (1at %) doped ZnO and ZnO nanoparticles have been synthesized via sol gel method. The structural characters of the synthesized nanoparticles have been studied by X-ray diffraction pattern (XRD), scanning electron microscopy (SEM) and energy-dispersiveX-ray spectroscopy (EDX). From synthesized nanopowders a tablet was prepared by using the isostatic pressing and then sintered at 600°C. Then, the gas-sensing properties of ZnO and IZO powder tablets were evaluated with respect to the acetone gas at different temperatures and concentrations. XRD pattern and SEM images showed the prepared samples were crystallized in the wurtzite structure with the average particle size of 32 and 27 nm. The gas sensing measurement results showed that the indium dopant ions improved the gas sensitivity of ZnO for high acetone concentrations effectively. Therefore, it is suggested that the IZO tablet can act as reliable and low cast gas sensor for acetone detection. Sintering temperature strongly increased the grain size and density of samples. EDX analysis confirmed the presence of indium in zinc oxide structure. UR - http://www.nanochemres.org/article_54179.html L1 - http://www.nanochemres.org/article_54179_7afab14dc3ca8338071807e81112776c.pdf ER -