Optimizing dimensional accuracy in two-photon polymerization: Influence of energy dose and proximity effects on sub-micrometric fiber structures

IF 10.3 1区工程技术 Q1 ENGINEERING, MANUFACTURING

Additive manufacturing Pub Date : 2025-03-26 DOI:10.1016/j.addma.2025.104735

Ianis Drobecq , Claire Bigot , Olivier Soppera , Laurent Malaquin , Bastien Venzac

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引用次数: 0

Abstract

Two-photon polymerization (2PP) is a powerful technology for achieving sub-micrometric precision in additive manufacturing, enabling the fabrication of 3D fibrillar structures with sub-micrometric fibers. This study provides an extensive study of the parameters that influence the dimensional accuracy of suspended beams, such as energy dose and proximity effects between the surrounding supportive structures and the fibers. Through systematic characterization of these parameters, we analyze the impact of spatial confinement on fiber width, height, and structural stability. Our results reveal that beyond conventional parameters like energy dose, long-range proximity effects induced by oxygen depletion and diffusion significantly influence final feature dimensions. These findings provide insights into optimizing 2PP for high-resolution, reproducible structures, advancing its application in fields where nanoscale precision is essential, such as tissue engineering and photonics.

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来源期刊

Additive manufacturing Materials Science-General Materials Science

CiteScore

19.80

自引率

12.70%

发文量

648

审稿时长

35 days

期刊介绍： Additive Manufacturing stands as a peer-reviewed journal dedicated to delivering high-quality research papers and reviews in the field of additive manufacturing, serving both academia and industry leaders. The journal's objective is to recognize the innovative essence of additive manufacturing and its diverse applications, providing a comprehensive overview of current developments and future prospects. The transformative potential of additive manufacturing technologies in product design and manufacturing is poised to disrupt traditional approaches. In response to this paradigm shift, a distinctive and comprehensive publication outlet was essential. Additive Manufacturing fulfills this need, offering a platform for engineers, materials scientists, and practitioners across academia and various industries to document and share innovations in these evolving technologies.