Abstract
Temperature measurement is very important for thermal control, which is required for the advancement of mechanical and electronic devices. However, current temperature sensors are limited by their inability to measure curved surfaces. To overcome this problem, several methods for printing flexible substrates were proposed. Among them, electrohydrodynamic (EHD) inkjet printing technology was adopted because it has the highest resolution. Since EHD inkjet printing technology is limited by the type of ink used, an ink with temperature-sensing properties was manufactured for use in this printer. To confirm the applicability of the prepared ink, its resistance characteristics were investigated, and the arrangement and characteristics of the particles were observed. Then, the ink was printed using the EHD inkjet approach. In addition, studies of the meniscus shapes and line widths of the printed results under various conditions confirmed the applicability of the ink to the EHD inkjet printing technology and the change in its resistance with temperature.
Highlights
Owing to recent developments in the field of artificial intelligence (AI), mechanical devices are increasing in complexity, along with the number of computations that electronic equipment must process
These developments have significantly advanced science and technology, they have led to an increase in the amount of heat generated in mechanical devices and electronic equipment
The manufacturing process foon adjusting the experimental parameters according to the ratio of the materials used
Summary
Owing to recent developments in the field of artificial intelligence (AI), mechanical devices are increasing in complexity, along with the number of computations that electronic equipment must process. Studies were conducted to produce ink that is suitable for EHD inkjet printing technology. Shabanov et al studied copper inks, whose application to printing technology was difficult owing to oxidation, and produced copper inks that are capable of printing thin conductive copper wires [18]. Research on the application of EHD inkjet printing technology is actively underway [19,20]. Advanced printing technologies have been studied in various fields, such as sensors, transistors, and generators. Several technologies for manufacturing semiconductors using various printing technologies, including EHD inkjet printing technology, are being actively studied. Wang et al fabricated flexible proximity sensors using inkjet printing technology and succeeded in sensing temperature and vibrations [23]. A few studies have applied these advanced printing techniques to temperature-sensing paint. The ink with the best characteristics was employed in the EHD inkjet printer, and its applicability was confirmed experimentally
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