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Development and Experimental Assessment of a Model for the Material Deposition by Laser-Induced Forward Transfer
Publikationstyp
Journal Article
Date Issued
2022-02-01
Sprache
English
Author(s)
Journal
Volume
12
Issue
3
Article Number
1361
Citation
Applied Sciences Switzerland 12 (3): 1361 (2022)
Publisher DOI
Scopus ID
The potential to deposit minute amounts of material from a donor to an acceptor substrate at precise locations makes laser-induced forward transfer (LIFT) a frequently used tool within different research fields, such as materials science and biotechnology. While many different types of LIFT exist, each specialized LIFT application is based on a different underlying transfer mechanism, which affects the to-be-transferred materials in different ways. Thus, a characterization of these mechanisms is necessary to understand their limitations. The most common investigative methods are high-speed imaging and numerical modeling. However, neither of these can, to date, quantify the material deposition. Here, analytical solutions are derived for the contact-based material deposition by LIFT, which are based on a previously observed equilibrium state. Moreover, an analytical solution for the previously unrecognized ejection-based material deposition is proposed, which is detectable by introducing a distance between the donor and acceptor substrates. This secondary mechanism is particularly relevant in large scale production, since each deposition from a donor substrate potentially induces a local distance between the donor and acceptor substrates.
Subjects
Fluorescence imaging
Transfer mechanisms
Vertical scanning interferometry
DDC Class
600: Technology