In-tandem deposition and sintering of printed gold nanoparticle inks induced by continuous Gaussian laser irradiation

Autor:	Nicole R. Bieri, Dimos Poulikakos, Jaewon Chung, Seung Hwan Ko, Costas P. Grigoropoulos
Rok vydání:	2004
Předmět:	Coalescence (physics) Marangoni effect Materials science business.industry Physics::Optics Nanoparticle Sintering General Chemistry Laser law.invention Optics law Colloidal gold Optoelectronics General Materials Science Irradiation Laser power scaling business
Zdroj:	Scopus-Elsevier
ISSN:	1432-0630 0947-8396
Popis:	By employing continuous Gaussian laser irradiation in tandem with a specifically designed drop-on-demand jetting system, nanoparticle inks were printed and sintered on glass substrate. A toluene solvent is employed as the carrier of gold nanoparticles possessing a lower melting temperature than that of bulk gold. Marangoni flow due to radial surface tension gradient combined with a moving substrate displaces nanoparticle ink in front of and around the laser spot. Experiments were carried out changing incident laser power, focused beam waist, and translation speed, and resulting phenomena at different conditions were explained. Strong coalescence occurred from 9000–14000 W/cm2, and a gold line with 8 μm of width was demonstrated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58b035e4f9ddece8631b80c8ad72fefa https://doi.org/10.1007/s00339-004-2731-x Zobrazit plný text záznamu Plný text ve formátu PDF