The emerging field of printed electronics is radically changing the way we think about electronics. First of all, due to
To solve this problem, Dr. Christian Larsenand Professor Ludwig Edman, along with colleagues from the Faculty of Physics at Umeå University, created the Green Solvent Selection Tool, which is now available for use on the web.
“Printed electronics will change the waythe use of electronics in the future. You will be able to add functionality such as sensors, solar cells, displays and lighting panels to a variety of common and functional surfaces using printing. You can create clothes that glow and make you visible in the dark, install ultra-thin lighting panels painted on the walls and ceiling, and flexible and lightweight solar panels that provide the user with electricity away from infrastructure, ”reflects Christian Larsen, Senior Research Engineer Faculty of Physics, Umeå University.
Printing is done bysequential application of specially formulated inks that contain the active material dissolved or dispersed in a liquid solvent. The solvent is very important as it determines the quality of the ink and the final device. After each printing step, the solvent is removed by evaporation and thus affects workers and the environment. A major issue is that many of the current solvents in printed electronics are not environmentally friendly as they pose health, safety and environmental concerns.
“That's why we developed an open web toolto directly identify alternative functional and green solvents, which essentially combines a like-dissolve-like approach for solvent functional groups with a well-established solvent stability or environmental rating, ”adds Larsen.
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