Printed Electronics Technology and Its Application to Low-Cost Sensors

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In recent years, printing technology has received significant interest for developing low-cost, large area electronic systems. Sensors have been one of the prominent areas of experimentation for printed electronic technology. Although the concept of printed sensors is not new, there are still significant challenges in developing high performance sensors with printed electronics technology. The key challenge is that the fabrication and performance of printed sensors depend very strongly on various fabrication parameters, such as material composition and process. Some of the other challenges are those that relate to the process throughput, trade-offs between cost and performance, large linewidth, poor reproducibility, and substrate distortion. If the challenges are not addressed, the performance issue will limit the commercial progress of printed sensors.