Journal of the Korean Physical Society

pISSN 0374-4884 eISSN 1976-8524


J. Korean Phys. Soc. 2020; 76(11): 1005-1009

Published online June 15, 2020

Copyright © The Korean Physical Society.

Electrical and Chemical Sensing Properties of a Printed Indium-Tin-Oxide Film for the Detection of Hazardous and Noxious Substances

Jun Seck Choi1, Dong Wan Ko1, Jun Young Seo1, Jae Ha Nho1, Ji Ho Chang1, Sang Tae Lee2, Jung-yeul Jung3, Moon Jin Lee3

1Major of Electronic Materials Engineering, Korea Maritime and Ocean University, Busan 49112, Korea
2Department of Offshore Plant Management, Korea Maritime and Ocean University, Busan 49112, Korea
3Maritime Safety and Environmental Research Division, Korea Research Institute of Ships and Ocean Engineering, Daejeon 34103, Korea

Correspondence to:Ji Ho Chang


We have investigated the feasibility of the printed ITO films as a chemical sensor. ITO films were printed on a PET substrate by using an ITO (Sn ~10%) power which has an average particle size of 45nm. Superior chemical sensing performance of ITO films was observed in compared with the results of sputtered ITO film. It was discussed that the difference of grain size between the two samples led to a remarkable difference in the respective carrier scattering mechanisms and sensing performance.

Keywords: Indium-tin-oxide (ITO), Screen-printing, HNS, Sensor