Chemical sensing properties of indium-tin-oxide (ITO) printed films fabricated on biodegradable plastics
Source abstract
Abstract
A chemical sensor was fabricated using indium-tin-oxide (ITO) films printed on biodegradable plastic substrates. The ITO layers were printed on polylactic acid (PLA) films. To optimize the printing procedure, the thermal properties of the PLA substrate were investigated using the differential scanning calorimetry method. The structural and electrical properties of the fabricated ITO films (P-ITO) were compared with commercial sputtered ITO films (S-ITO). X-ray diffraction and Hall effect measurements were used to estimate the grain size and the carrier transportation mechanism of the ITO films. The small grain size of P-ITO was attributed to its scattering mechanism. Grain boundary scattering was shown to be dominant in the P-ITO. The chemical sensing properties were also evaluated using a droplet of methanol (20 µl), indicating that the response rate of the P-ITO film was considerably higher (650%) than that of the S-ITO film. These results were attributed to the large surface area of the P-ITO film.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Gas Sensing Nanomaterials and Sensors · Analytical Chemistry and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Major of Electronic Materials Engineering, Korea Maritime and Ocean University 1 , Busan 49112, South Korea
Department of Offshore Plant Management, Korea Maritime and Ocean University 2 , Busan 49112, South Korea
Maritime Safety and Environmental Research Division, Korea Research Institute of Ships and Ocean Engineering 3 , Daejeon 34103, South Korea
Funding
Ministry of Oceans and Fisheries
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