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This content will become publicly available on July 5, 2019

Title: Principles of aerosol jet printing

Aerosol jet printing (AJP) has emerged as a promising method for microscale digital additive manufacturing using functional nanomaterial inks. While compelling capabilities have been demonstrated in the research community in recent years, the development and refinement of inks and process parameters largely follows empirical observations, with an extensive phase space over which to optimize. While this has led to general qualitative guidelines and ink- and machine-specific correlations, a more fundamental understanding based on principles of aerosol physics and fluid mechanics is lacking. This contrasts with more mature printing technologies, for which foundational physical principles have been rigorously examined. Presented here is a broad framework for describing the AJP process. Simple analytical models are employed to ensure generality and accessibility of the results, while experimental validation using a silver nanoparticle ink supports the physical relevance of the approach. In conclusion, this basic understanding enables a description of process limitations grounded in fundamental principles, as well as guidelines for improved printer design, ink formulation, and print parameter optimization.
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  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Report Number(s):
Journal ID: ISSN 2058-8585; 665151
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Flexible and Printed Electronics
Additional Journal Information:
Journal Volume: 3; Journal Issue: 3; Journal ID: ISSN 2058-8585
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
77 NANOSCIENCE AND NANOTECHNOLOGY; printed electronics; nanomaterial inks; direct-write printing; fluid mechanics; aerosol physics
OSTI Identifier: