Characterization of Silver Nanowire Flexible Transparent Electrode with Grid Pattern Formed via Thermocompression

Abstract

In this study, we present a new and simple method that utilizes post-processing such as thermal treatment and mechanical compression to manufacture a grid patterned silver nanowire (AgNW) flexible transparent electrode with low sheet resistance, high transmittance, and high flexibility. The effects of thermal treatment and mechanical compression on the structural, optical, and electrical properties of AgNW deposited by bar coating have been analyzed as a function of temperature and pressure. It was discovered that there is a critical thermal treatment temperature (T c ) that determined the abrupt changedecreasing, then rapidly increasing-in the sheet resistance of AgNW. When additional pressure was applied during thermal treatment, T c was lowered. The cohesion between AgNW wires was improved by thermal treatment below T c , and further strengthened when pressure was applied simultaneously with heat. However, when thermal treatment was performed above T c , the unique wire structure of AgNW collapsed. It has also been found that heat treatment and mechanical compression improve the flexibility of AgNW.

Pure metallic nanofibrillar membrane for high-performance electrostatic air filtration with antimicrobial and reusable characteristics

“…2e and S3 †). 35 Finally, the compressed Cu nanobranches are thermally sintered to ensure sufficient mechanical stability and electrical conductivity (Fig. 2f and S4 †).…”

Thermo-electro-optical properties of seamless metallic nanowire networks for transparent conductor applications

“…To reduce the impact of these so-called junction resistances, the literature identifies several processing approaches to improve the interwire junction properties, including mechanical pressing, [43][44][45] plasmonic welding, 46,47 and thermal annealing. 48,49 Despite the intense efforts, junction resistances have limited improvement capacity, and yet there exists no preferred benchmark for optimizing junction resistance values. 38 An alternative is to modify entirely the network structural design over the standard random NWN while maintaining the integrity of its connectivity and functionality which are the building blocks for any percolative complex system.…”

Continuous Patterning of Silver Nanowire-Polyvinylpyrrolidone Composite Transparent Conductive Film by a Roll-to-Roll Selective Calendering Process

“…However, one of most critical issues with Ag NW thin films in practical applications is the patterning process. The patterns of Ag NW thin films were achieved by various methods such as photolithography [ 24 , 25 ], templated assembly [ 26 , 27 , 28 , 29 ], laser ablation [ 30 ], surface wettability control [ 31 , 32 , 33 ], chemical etching [ 34 , 35 , 36 ], electrospray [ 37 ], thermocompression [ 38 ], inkjet printing [ 39 ], and gravure printing [ 40 ]. However, some of these suffer from the disadvantages of complexity, low quality, chemical damage, and poor feasibility due to a long process time.…”