Highly conductive carbon-based aqueous inks toward electroluminescent devices, printed capacitive sensors and flexible wearable electronics

Abstract

Carbon-based conductive inks are one of the most important materials in the field of printing electronics.

Carbon Nanotube Film Electrodes with Acrylic Additives: Blocking Electrochemical Charge Transfer Reactions

“…The R s value was higher than 10 4 Ω•sq −1 for 2-layer films, and decreased rapidly as the thickness increased. The final R s value for an electrode with a thickness of 0.06 mm was in the range of 10 Ω•sq −1 , which was highly competitive compared with other previously published carbon-based conducting inks [28]. Besides, the electrodes showed a high mechanical resistance, adhesion of the CNT film to the plastic substrate, and durability upon bending (Figure 2), in agreement with previous literature works [29].…”

“…Typical commercial products are made of methyl methacrylate monomers, styrene acrylics, carboxylate acrylics, and other similar units. Molecular weights reach > 200,000 g•mol −1 , although some of them contain shorter chains (~8500 g•mol −1 ) [26][27][28][29]. Latex might also contain other minor components such as ammonia, polyethylene and silicon-based antifoam [27].…”

“…Later on, acrylic inks containing graphene and CNTs have been processed by gravure printing, achieving high electrical conductivity for printed electronics [27]. In addition, acrylic inks containing functionalized MWCNTs have been applied to the fabrication of electroluminescent devices, capacitive sensors, and wearable electronics by screen printing, showing high electrical conductivity, mechanical stability, and even resistance to folding [28]. In electrochemical applications, acrylic MWCNT inks have been deposited on glassy carbon electrodes, resulting in improved electrocatalytic activities [29,30].…”

Fabrication and Patterning Methods of Flexible Sensors Using Carbon Nanomaterials on Polymers

“…Liao et al reduced the resistivity further by adding dihydroxyphenyl‐functionalized MWCNTs (MWCNT‐f‐OH) to the carbon black and graphite mixture, along with using acrylic resin as binder. The resistivity achieved was 29 Ω sq −1 when the mass fraction of the components was 10.2%, 3.0%, and 4.1% for graphite, carbon black, and MWCNT‐f‐OH, respectively.…”

Printed electronics based on inorganic conductive nanomaterials and their applications in intelligent food packaging

“…Because of their excellent chemical, electrical, mechanical, and optical properties as well as their abundance, graphene and carbon nanotubes (CNTs) are emerging as promising candidates for metal NPs. 6,9,12,13,18,[55][56][57] Since 2004, more and more of the literature has focused on the preparation of graphene and CNTs. Where and how we can apply graphene in new elds and for new functions has become a wide-spread challenge.…”