Study on the synthesis of Indium Tinoxide (ITO) nanomaterial using sol gel process and its potential for CO gas detection

8th International Conference on Physics and its Applications

Wiranto, Goib^1 ; Idayanti, Novrita^1 ; Retnaningsih, Lilis^1

Research Center for Electronics and Telecommunication, Indonesian Institute of Sciences (LIPI), Jl. Sangkuriang, Bandung

40135, Indonesia^1

关键词: Cubic crystal structures;    Gas concentration;    Gas detection;    Indium nitride;    Molecular bonds;    Palladium chloride;    Physical characteristics;    Sensor applications;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/776/1/012060/pdf
DOI  :  10.1088/1742-6596/776/1/012060

来源: IOP

【 摘 要 】

This paper described the synthesis of doped and undoped nanomaterial Indium Tinoxide (ITO) using sol-gel process with the base materials from Indium Nitride (In(NO3)) and Tin Chloride (SnCl4). Doping was done using Palladium Chloride (PdCl), with the molar ratio of 90:10 and 70:30, respectively. Physical characteristics of the nanocrystallites were examined using SEM, EDS, XRD, and FTIR, whereas its resistivity was tested agaist CO gas. The result showed that the ITO powders have a crystal size smaller than 100 nm, with a cubic crystal structure (byxbite type), and having strong molecular bonds for In-O-In and Sn-O-Sn. The response to CO gases showed a decreasing resistivity with increasing CO gas concentration, showing its potential for gas sensor application.