Inkjet printing of conductive patterns and supercapacitors using a multi-walled carbon nanotube/Ag nanoparticle based ink

Abstract

A multi-walled carbon nanotube (MWCNT) and silver (Ag) nanoparticle ink for inkjet printing was prepared by dispersing MWCNTs and Ag nanoparticles in water with the assistance of sodium dodecylbenzenesulfonate (SDBS). Highly conductive patterns of Ag-MWCNTs were printed on paper using a HP Deskjet 1010 inkjet printer. The patterns showed good stability during the bending test and a low sheet resistance of $300 U sq À1 after being printed 50 times. By simply adding manganese dioxide (MnO 2 ) nanoparticles with a diameter of 60-90 nm into the ink solution, patterned positive electrodes were prepared for asymmetric supercapacitors (ASCs) with filtrated MWCNT negative electrodes. The ASCs exhibit a wide operating potential window of 1.8 V and excellent electrochemical performances, e.g. a high energy density of 1.28 mW h cm À3 at a power density of 96 mW cm À3 and a high retention ratio of $96.9% of its initial capacitance after 3000 cycles. The inkjet-printing acting as a simple, lowcost, non-contact deposition method can be fully integrated with the fabrication process in current printed electronic devices and has potential applications in energy storage.

MXene‐on‐Paper Coplanar Microsupercapacitors

“…The cyclic Adv. [43] Similarly, the areal energy and power density values for pencil trace, [44] graphene, [21] and multiwalled carbon nanotubes (MWCNTs)/Ag [45] are presented in Figure 4d and we have achieved remarkably improved performance for our clay-like Ti 3 C 2 MXene based MSCs with thick coatings. 2016, 6, 1601372 www.MaterialsViews.com www.advenergymat.de wileyonlinelibrary.com performance of MXene based MSCs was measured in PVA/ H 2 SO 4 gel electrolyte for over 10 000 cycles in the voltage range of 0-0.6 V by continuous charging and discharging at a constant current density of 2 mA cm -2 ( Figure 4c).…”

3D Porous Mixed‐Valent Manganese Oxide Nanosheets Electrodeposited onto Flexible Ag‐CNT Textiles for Highly Improved Capacitive Performances

“…Many studies have been conducted on synthesized Ag–CNT hybrid materials; however, obtaining a conductive ink that is convenient for applications in flexible electronics is often a relatively complicated and time‐consuming task because of the extra step of re‐dispersion of the hybrid materials into aqueous solutions. Usually, in the direct fabrication of conductive Ag–CNT ink, sonication of a mixture of CNT powder and commercial Ag nanoparticles is used . However, the higher cost of the Ag nanoparticle precursor is a limiting factor for its large‐scale production and practical use.…”

Printable Functional Chips Based on Nanoparticle Assembly

“…By adding Ag-nanoparticles to carbon nanotubes, highly conductive patterns can be prepared, and act as electric circuits. [ 70 ] Graphene, the promising 2D building block for sp 2 carbon allotropes, has attracted increasingly research interest. Adopting liquid phase graphene, [ 71 ] polymers mixed graphene, [ 72 ] Ag doped graphene [ 73,74 ] as printable inks, direct inkjet print on fl exible substrates induce conductive patterns formation, [75][76][77] which can be used as energy storage devices [ 78 ] and sensors.…”