Trends and Prospects in Laser Nanofabrication

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanofabrication and Nanomanufacturing".

Deadline for manuscript submissions: 31 July 2025 | Viewed by 2231

Special Issue Editors


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Guest Editor
School of Mechanical and Electrical Engineering, Soochow University, Suzhou, 215000, China
Interests: laser processing technology; surface engineering; nanotechnology

E-Mail Website
Guest Editor
School of Mechanical and Electrical Engineering, Soochow University, Suzhou, 215000, China
Interests: advanced welding technologies; additive manufacturing; microstructure investigation; surface engineering;

Special Issue Information

Dear Colleagues,

Laser material processing technologies have gained considerable importance in diverse industries due to the rapid growth of laser applications and the reduced cost of laser systems. To date, laser-derived technology, including laser melting, laser fragmentation, laser ablation, pulse laser deposition, etc., has been deemed as one outstanding and unique strategy for fabricating functional nanostructures and preparing advanced nanomaterials. In comparison to general chemical methods, advanced nanomaterials produced via laser fabrication present unique advantages, including rapid processing, controllability, having few chemical reagents, being applicable on a large scale, and being limitless in materials or media. Many international groups have made great contributions to our understanding of the generation mechanisms of nanomaterials/nanostructures, modeling of growth processes, up-scaling preparation, and the implementation of these ideas in the semiconductor manufacturing process, renewable energy, and bionic and biomedical applications.

Despite such progress and accumulation, advanced nanomaterials with more precise controllability and superior properties still need to be produced via laser fabrication. This considered, potential topics include, but are not limited to, the following:

  • Pulse laser deposition in A vacuum or gas atmosphere;
  • Laser fabrication (ablation, fragmentation, melting) in liquids;
  • Laser processing of metals, carbon materials, polymers, ceramics, etc.;
  • Interaction process of lasers and matters (solid/liquid/gas);
  • Applications in energy storage and conversion, catalysis, biomedical, bionics, etc.;
  • Generation mechanisms of nanomaterials or nanostructures

We welcome papers sharing recent research and advances in this field for publication in this Special Issue of Nanomaterials.

Prof. Dr. Mingdi Wang
Dr. Shengbin Zhao
Guest Editors

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Keywords

  • laser fabrication
  • laser ablation
  • generation process of advanced nanomaterials
  • research on the laser–matter interaction process

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Published Papers (2 papers)

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Research

11 pages, 4177 KiB  
Article
Intensity Modulation Effects on Ultrafast Laser Ablation Efficiency and Defect Formation in Fused Silica
by Dai Yoshitomi, Hideyuki Takada, Shinichi Kinugasa, Hiroshi Ogawa, Yohei Kobayashi and Aiko Narazaki
Nanomaterials 2025, 15(5), 377; https://doi.org/10.3390/nano15050377 - 28 Feb 2025
Viewed by 134
Abstract
Ultrafast laser processing is a critical technology for micro- and nano-fabrication due to its ability to minimize heat-affected zones. The effects of intensity variation on the ultrafast laser ablation of fused silica were investigated to gain fundamental insights into the dynamic modulation of [...] Read more.
Ultrafast laser processing is a critical technology for micro- and nano-fabrication due to its ability to minimize heat-affected zones. The effects of intensity variation on the ultrafast laser ablation of fused silica were investigated to gain fundamental insights into the dynamic modulation of pulse intensity. This study revealed significant enhancement in ablation efficiency for downward ramp intensity modulation compared to the upward ramp. This effect was independent of the repetition rate ranging from 100 Hz to 1 MHz, which suggested that it originates from persistent residual effects of preceding pulses. Photoluminescence experiments indicated that the observed effect is primarily attributed to the dynamic reduction in the ablation threshold caused by the formation of defects such as non-bridging oxygen hole centers. The correlation between the sequence of intensity-modulated pulses and defect formation has been clarified. The knowledge of these correlations, combined with machine learning-based optimization methods, is useful for the optimization of the throughput and quality of ultrafast laser processing. Full article
(This article belongs to the Special Issue Trends and Prospects in Laser Nanofabrication)
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14 pages, 9712 KiB  
Article
Study on the Technology and Properties of Green Laser Sintering Nano-Copper Paste Ink
by Pengkun Li, Zilin Tang, Kaibo Guo, Guifeng Luo, Xihuai Wang, Shengbin Zhao and Mingdi Wang
Nanomaterials 2024, 14(17), 1426; https://doi.org/10.3390/nano14171426 - 31 Aug 2024
Viewed by 1631
Abstract
With the rapid development of integrated circuits, glass substrates are frequently utilized for prototyping various functional electronic circuits due to their superior stability, transparency, and signal integrity. In this experiment, copper wire was printed on a glass substrate using inkjet printing, and the [...] Read more.
With the rapid development of integrated circuits, glass substrates are frequently utilized for prototyping various functional electronic circuits due to their superior stability, transparency, and signal integrity. In this experiment, copper wire was printed on a glass substrate using inkjet printing, and the electronic circuit was sintered through laser irradiation with a 532 nm continuous green laser. The relationship between resistivity and microstructure was analyzed after laser sintering at different intensities, scanning speeds, and iterations. The experimental results indicate that the conductivity of the sintered lines initially increases and then decreases with an increase in laser power and scanning speed. At the same power level, multiple sintering runs at a lower scanning speed pose a risk of increased porosity leading to reduced conductivity. Conversely, when the scanning speed exceeds the optimal sintering speed, multiple sintering runs have minimal impact on porosity and conductivity without altering the power. Full article
(This article belongs to the Special Issue Trends and Prospects in Laser Nanofabrication)
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