Laser-induced forward transfer nanoparticle spray for printing of metallic nanophotocatalysts

IF 4 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical and Quantum Electronics Pub Date : 2025-10-10 DOI:10.1007/s11082-025-08498-1

Sergey Kudryashov, Alena Nastulyavichus, Sofia Babina, Evgeniya Ulturgasheva, Dmitry Khmelenin, Nikolay Pokryshkin, Aleksey Levchenko, Alexei Averin

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引用次数: 0

Abstract

Thin films of metallic palladium (Pd) of different thicknesses (30, 150, 450 nm) supported on silica glass slides were forward-nanosprayed in a plasma-piston regime by 1064-nm, 120-ns laser pulses at variable high (GW/cm²-level) peak laser intensities onto silicon substrates and carbon grids for chemical analysis and TEM sizing, respectively. The utilized peak laser intensities/fluences provide different spraying regimes – complete atomization/ionization, atomization or bulk boiling, depending on the Pd film thickness and the related volume energy deposition. The confined laser ablation regime, which is favorable for enlarged plasma/vapor pressure and its piston spraying, also surprisingly resulted in rather narrow dispersion state of the metallic palladium nanoparticles (50–100 nm) due to enhanced condensation in the confined vapor cavity at the film/substrate interface. The proposed procedure looks promising for direct printing large-surface Pd-based supported plasmonic nanophotocatalysts, with the minor unfavorable screening effect of the vaporized silica substrate.

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激光诱导正向转移纳米颗粒喷涂金属纳米光催化剂的研究

利用1064 nm、120 ns的激光脉冲，以不同的峰值激光强度（GW/cm2级），将不同厚度（30、150、450 nm）的金属钯（Pd）薄膜在等离子体-活塞模式下向前喷射到硅衬底和碳网格上，分别用于化学分析和TEM尺寸测定。所利用的峰值激光强度/影响提供不同的喷涂制度-完全雾化/电离，雾化或整体沸腾，取决于Pd膜厚度和相关的体积能量沉积。受限激光烧蚀有利于增大等离子体/蒸气压及其活塞喷射，但由于薄膜/衬底界面受限气腔内的冷凝增强，导致金属钯纳米颗粒的分散状态（50-100 nm）相当窄。该方法有望用于直接印刷大表面钯基支撑等离子体纳米光催化剂，并且具有汽化二氧化硅衬底的轻微不利筛选效应。

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来源期刊

Optical and Quantum Electronics 工程技术-工程：电子与电气

CiteScore

4.60

自引率

20.00%

发文量

810

审稿时长

3.8 months

期刊介绍： Optical and Quantum Electronics provides an international forum for the publication of original research papers, tutorial reviews and letters in such fields as optical physics, optical engineering and optoelectronics. Special issues are published on topics of current interest. Optical and Quantum Electronics is published monthly. It is concerned with the technology and physics of optical systems, components and devices, i.e., with topics such as: optical fibres; semiconductor lasers and LEDs; light detection and imaging devices; nanophotonics; photonic integration and optoelectronic integrated circuits; silicon photonics; displays; optical communications from devices to systems; materials for photonics (e.g. semiconductors, glasses, graphene); the physics and simulation of optical devices and systems; nanotechnologies in photonics (including engineered nano-structures such as photonic crystals, sub-wavelength photonic structures, metamaterials, and plasmonics); advanced quantum and optoelectronic applications (e.g. quantum computing, memory and communications, quantum sensing and quantum dots); photonic sensors and bio-sensors; Terahertz phenomena; non-linear optics and ultrafast phenomena; green photonics.