From cannabis harvest to flexible solar panels

University of Ottawa researchers using CLS to develop next-gen electronic devices

Organic electronics – electronics where the active material is carbon-based – are making possible diverse new technologies ranging from sensors for monitoring cannabinoid levels in cannabis plants to lightweight, bendable solar panels. Real world applications would mean solar panels you roll up and take with you on your next camping trip, or cannabis producers knowing the optimal time to harvest plants.

Key to these advances is a class of substances called conductive polymers, which have good optical and mechanical properties but are cheaper to manufacture than conventional electronics, thanks to low energy requirements; they can be printed in long, thin sheets – like a newspaper – but don’t require the same high temperatures (> 1000° Celsius). Researchers from the University of Ottawa recently used the Canadian Light Source at the University of Saskatchewan to study how different manufacturing processes can affect the performance of the resulting electronic devices.

“While these applications all sound really different, the reality they all have similar structures and need to be manufactured in similar ways,” explained Benoit Lessard, University of Ottawa professor and Canada Research Chair in the Department of Chemical and Biological Engineering.

Using the Brockhouse beamline at the CLS, Lessard and his team have been able to examine – at a microscopic level – how the carbon molecules behave during manufacturing. What they’re learning will have huge implications on how cutting-edge devices are manufactured, their size, flexibility, and electronic functionality. Their results are published in the journal ACS Applied Materials & Interfaces.

Read more on Canadian Light Source website

Credit:  Mobile Solar Power, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons