All inkjet-printed graphene-based conductive patterns for wearable e-textile applications

Autor: Karim, N, Afroj, S, Malandraki, A, Butterworth, S, Beach, C, Rigout, M, Novoselov, KS, Casson, AJ, Yeates, SG
Jazyk: angličtina
Rok vydání: 2017
ISSN: 2050-7526
Popis: © 2017 The Royal Society of Chemistry. Inkjet printing of graphene inks is considered to be very promising for wearable e-textile applications as benefits of both inkjet printing and extra-ordinary electronic, optical and mechanical properties of graphene can be exploited. However, the common problem associated with inkjet printing of conductive inks on textiles is the difficulty to print a continuous conductive path on a rough and porous textile surface. Here we report inkjet printing of an organic nanoparticle based surface pre-treatment onto textiles to enable all inkjet-printed graphene e-textiles for the first time. The functionalized organic nanoparticles present a hydrophobic breathable coating on textiles. Subsequent inkjet printing of a continuous conductive electrical path onto the pre-treated coating reduced the sheet resistance of graphene-based printed e-textiles by three orders of magnitude from 1.09 × 106 Ω sq-1 to 2.14 × 103 Ω sq-1 compared with untreated textiles. We present several examples of how this finding opens up opportunities for real world applications of printed, low cost and environmentally friendly graphene wearable e-textiles.
Databáze: OpenAIRE