Development and Experimental Assessment of a Model for the Material Deposition by Laser-Induced Forward Transfer.

Autor: Paris, Grigori, Bierbaum, Dominik, Paris, Michael, Mager, Dario, Loeffler, Felix F.
Předmět:
Zdroj: Applied Sciences (2076-3417); Feb2022, Vol. 12 Issue 3, p1361, 10p
Abstrakt: 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. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index