Electronic textiles (e-textiles) are rapidly emerging as key enablers for wearable electronics. Graphene and 2D materials have played a major role in enabling truly wearable e-textiles. We demonstrate a textile-based display by using the Joule’s heating of a screen printed few layers graphene ink to drive the colour switching of thermochromic polyurethane on cotton fabric. The average temperature of the few layers graphene ink on fabric was voltage-controlled reaching about 43 oC in 45 s at a bias of 12 V and a recovery of < 20 s, with negligible degradation after several heating/cooling cycles. This is used to demonstrate several electro-thermochromic textile displays, representing a breakthrough in e-textiles technology.
A graphene-based electro-thermochromic textile display
Torrisi, Felice
Ultimo
2020-01-01
Abstract
Electronic textiles (e-textiles) are rapidly emerging as key enablers for wearable electronics. Graphene and 2D materials have played a major role in enabling truly wearable e-textiles. We demonstrate a textile-based display by using the Joule’s heating of a screen printed few layers graphene ink to drive the colour switching of thermochromic polyurethane on cotton fabric. The average temperature of the few layers graphene ink on fabric was voltage-controlled reaching about 43 oC in 45 s at a bias of 12 V and a recovery of < 20 s, with negligible degradation after several heating/cooling cycles. This is used to demonstrate several electro-thermochromic textile displays, representing a breakthrough in e-textiles technology.| File | Dimensione | Formato | |
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A graphene-based electro-thermochromic textiledisplay_ft_a.pdf
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