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The Role of Coalescence in Inkjet Printing Functional Films: An Experimental Study

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For the past several decades inkjet technology has been shown to be a useful tool for fabricating anything from three dimensional objects to electrical devices and biological sensors. From a manufacturing perspective, it is important to functionalize a substrate with material in as timely a manner as possible while maintaining optimal functionality and satisfying hardware limitations. Of particular interest in previous work has been the effect of drop coalescence on print quality. This work examines how coalescence affects the uniformity of printed pairs of drops and printed lines as well as the functional performance of printed lines of a Pd based ink on Silicon and oxidized Silicon substrates. The results indicate that the ink migration resulting from Marangoni flows can be minimized by avoiding coalescence of adjacently deposited drops, thus increasing film uniformity and improving functional performance.

Document Type: Research Article

Publication date: January 1, 2013

More about this publication?
  • For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.

    Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.

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