INSTRUMENTATION & ELECTRONICS
EMERGING MATERIALS According to Howley, material options are vital in the development of printed sensor technologies and processes. Naturally, innovation in material composition, from metals, polymers, ceramics, nanomaterials, and composites used in sensing layers, to adhesives and flexible substrates, will enable the production of highly tailored sensing solutions. “Material success in non-sensing
applications has an increasing influence on the development of printed sensor technologies and processes,” Howley adds. “Semiconductive polymers used in OLED displays are being leveraged for use in optical and infrared sensing. The successful commercialisation of quantum dots (fluorescent nanoparticles) and in display panels will likely drive similar impact for their use in printed photodetector applications. A prominent target application for printed photodetectors remains on-cell and in- cell fingerprint sensing for whole-display biometric authentication and represents a key growth market behind our 8.6% CAGR forecast for the printed sensor market by 2034.”
PROMISING POTENTIAL Previously, the inability of printed sensors to meet critical cost, performance, size and reliability thresholds dampened the technology’s progress in key markets. However, as laid out in IDTechX’s report, with mass digitisation driving the need to capture data across more and more surfaces, large-area sensing is “quicky emerging as the higher-valued market differential for printed sensor technology.” Meanwhile, multifunctional and flexible
printed sensors are increasingly desirable for use in the medical and EV industries, and with the most efficient way to combine these properties with large- area sensing being via printed sensors, the outlook for the technology looks favourable indeed. The $960 million anticipated growth in printed sensors will, the report predicts, be largely driven by new opportunities in applications such as battery health management, biometric authentication on flexible displays, and even flexible X-ray medical and industrial imaging.
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Multifunctional printed sensors 20
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Multifunctional printed sensor technology for active battery health monitoring and thermal management. Image via IDTechX
Printed sensors
have the potential to empower the car of the future.
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