Facile fabrication of flexible metal grid transparent electrode using inkjet-printed dot array as sacrificial layer

Abstract

In this study, we introduce a flexible metal grid transparent electrode fabricated using a lift-off process. This transparent electrode consisting of metal thin film with punched-like pattern by hole array was fabricated with 8 um separations. The separation of inkjet-printed etching resistant ink droplets was controlled in order to investigate the relationship between its electrical and optical properties of the electrodes. The aluminum areal density was defined to predict the electrical and optical properties of different arrays. A high and uniform transmittance spectrum appears to extend broadly into the UV region. The figure of merit of the transparent electrode was investigated in order to determine its performance as a transparent electrode. Moreover, there was no significant change in the resistance after 7000 bending cycles, indicating that the array conductor had superior stability. We also demonstrate transparent touch screen panels fabricated using the transparent electrode.

Metallic Micro‐Nano Network‐Based Soft Transparent Electrodes: Materials, Processes, and Applications

“…Soft TEs also brought about a revolution in established industries such as the billion‐dollar industry for soft human‐machine interfaces (HMIs). [ 260 ] Flexible transparent touchscreen panels (TSPs), a common type of HMI, are successfully fabricated using MMNN TEs, including both the resistive type [ 7 , 147 , 261 , 262 ] and the capacitive type. [ 97 , 177 , 208 ] The detection of human movements for human healthcare monitoring is another common use of tactile sensors.…”

Optimization of process parameters in micro-scale pneumatic aerosol jet printing for high-yield precise electrodes

“…In recent years, extensive research has been undertaken to explore the potential of the printing process for fabricating cost-effective, large-area electronic circuits and devices on flexible electronic substrates 1 . Various methods have been explored, including screen printing 2 , 3 , inkjet printing 4 – 6 , roll-to-roll printing 7 – 9 , gravure printing 10 , 11 , and aerosol printing 12 – 14 . Given the intricate requirements of the printing process for electronic devices, such as organic light-emitting diodes and thin-film transistors which often involve multi-layered structures, precise control over layer sizes and placements is essential 15 – 17 .…”