Abstract
Electronic textiles are rapidly emerging as key enablers for wearable electronics. Here we demonstrate fast electro-thermochromic textile displays enabled by a screen-printed, few-layer graphene ink on a cotton fabric, thus representing a breakthrough in e-textiles technology.
Highlights
Wearable electronics is an emerging field that offers considerable potential in healthcare and well-being, Internet of Things (IoT) and biosensing applications.[1,2,3] Electronic textiles (E-textiles) are a very promising technology that aims to revolutionize wearable electronics offering breathability, conformability and comfort to wear.[4]
Based on previous works on UV-induced thermochromic textiles[24] using rhodamine B ethylenediamine derivative molecules, we demonstrated a screen-printed electro-thermochromic textile (ET) on the cotton fabric comprising a UV-induced thermochromic polyurethane layer based on the rhodamine B ethylenediamine derivative molecules and graphene nano-platelets (GNPs) electrodes
The voltage-controlled heating of the screen printable GNP ink is important to enable the electro-thermochromic devices on the textile
Summary
Wearable electronics is an emerging field that offers considerable potential in healthcare and well-being, Internet of Things (IoT) and biosensing applications.[1,2,3] Electronic textiles (E-textiles) are a very promising technology that aims to revolutionize wearable electronics offering breathability, conformability and comfort to wear.[4] Despite all-textile individual electronic components[5] and integrated circuits have been demonstrated,[6] only few reports have attempted to achieve textile-based displays.[7] Thermochromic textile devices have already been demonstrated using metal oxide (such as CoO and Pb3O4) and leuco dye or polymer (such as polydyne) through various methods of textile integration such as coating,[8] spinning,[9] and dyeing..
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