Printed Energy-Harvesting Device Aimed at Smart Packaging

A UK-based tech innovation center has completed development of a printed energy harvester that researchers say will help usher in the next generation of smart packaging.

The Centre for Process Innovation (CPI) has developed the device -- which uses near-field communication (NFC) for power -- as part of the HaRFest project , launched more than a year ago to develop a low-cost energy-harvesting device that can be integrated into sensors, displays, and storage devices.

The Centre for Process Innovation (CPI) has completed a project to develop a printed energy-harvesting device that can be integrated into sensors, displays, and storage devices to enable smart-packaging solutions like the one shown, which gauges the temperature of beverages.

(Source: CPI)

The device works by drawing energy from a user’s mobile telephone, and uses NFC to establish radio communication with another device or sensor by touching or being in close proximity to it. It’s comprised of a printed antenna alongside printed passive and active components, including an array of tuning capacitors, according to CPI. The device can be tuned to resonant frequency in order to maximize harvested power output, researchers said.

The device allows for the integration of printed electronics into packaging designs, the thin substrates of which typically can not accommodate thick or inflexible batteries to provide power for sensors for smart-packaging solutions, researchers said.

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Sensors that can keep track of temperature for climate-sensitive products, provide smart labels to ensure product security, or identify scenarios of product tampering are just a few of the smart-packaging applications for the device. Others include interactive point-of-sale products and branding applications, and disposable printed bio-sensors that can be used in blood analysis, according to CPI.

Indeed, smart packaging is one component of the Internet of Things (IoT) and experts generally believe energy-harvesting devices like the one designed by the HaRFest project will drive this innovation. These devices allow for components in IoT devices and sensors to also be smarter, lightweight, wireless, and low cost, researchers said.

PragmatIC Printing Ltd., which develops flexible integrated circuits, led the project with CPI -- which fosters technology innovation aimed at the manufacturing sector -- and the EPSRC Centre for Innovative Manufacturing in Large-Area Electronics. The latter was represented in the project by academic partners the University of Cambridge and the Welsh Centre for Printing and Coating at Swansea University.

Now that the device is complete, PragmatIC will work with its customers to take it to the commercial market, said Richard Price, PragmatIC’s CTO. “HaRFest addressed a wide range of potentially high-volume applications identified by PragmatIC’s customers, and we look forward to progressing commercial discussions based on the project’s achievements," he said.

Elizabeth Montalbano is a freelance

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