A Review on Electrohydrodynamic-inkjet Printing Technology
نویسندگان
چکیده
Electrohydrodynamic (EHD)-inkjet printing is a novel high resolution inkjet printing technology with the advantages of being a maskless, non-contact, direct-write and additive process. Its printing resolution exceeds by about two orders of magnitude in comparison to the conventional inkjet printing systems. It is used in the field of micro/nano manufacturing for patterning of large class of materials on a variety of substrates with the options to use either Drop-OnDemand (D-O-D) or continuous mode. Printable electronics especially flexible electronics is one of the many fields where this technology has a lot to offer as the same EHD-inkjet setup can be used for electrospraying for thin film layer deposition, electrospinning for interconnection and EHD jetting for making electrodes. A lot of research has been carried out in the recent past to make its transition from a research tool to a commercial manufacturing process. Many challenges such as increasing the process throughput (i.e. the printing speeds) have to be overcome before the commercialization of this technology. Another major challenge is to develop a compact, affordable and user friendly test platform to further develop the process and associated applications. This review gives a brief account of the EHD-inkjet technology; the research activities carried out in recent years and the wide areas of applications of this technology. The working of the EHD-inkjet system along with the physics of the process has also been discussed in brief. Keywords—Drop-on-Demand (D-O-D), Electrohydrodynamic (EHD)-inkjet printing, Electrospinning, Electrospraying, Flexible electronics, Inkjet printing systems
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