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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Single-step printing of metallic nanoparticles in 2D micropatterns

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Autor(es):
Ferreira, Paulina R. [1] ; Correr, Wagner [1, 2] ; Mendonca, Cleber R. [1] ; Almeida, Juliana M. P. [1, 3]
Número total de Autores: 4
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Sao Carlos Inst Phys, POB 369, BR-13560970 Sao Carlos, SP - Brazil
[2] Univ Laval, Ctr Opt Photon & Laser, 2375 Rue Terrasse, Quebec City, PQ G1V 0A6 - Canada
[3] Univ Sao Paulo, Sao Carlos Sch Engn, Dept Mat Engn, Av Joao Dagnone 1100, BR-13563120 Sao Carlos, SP - Brazil
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: JOURNAL OF NANOPARTICLE RESEARCH; v. 22, n. 9 AUG 28 2020.
Citações Web of Science: 0
Resumo

This work demonstrates a single-step method for synthesis and printing of metallic nanoparticles (NPs) in 2D micropatterns. The method is based on femtosecond laser writing, enabling fast and high precision deposition of silver, gold, or copper NPs in space-selective areas, which in general is not achieved by the traditional chemical routes or laser ablation of metal. Such finds were accomplished by employing laser-induced forward transfer in the femtosecond pulse regime (fs-LIFT). The results are promising for application, since metallic NPs, with a lognormal diameter distribution averaging between similar to 4 and 30 nm, allow exploring plasmon bands throughout the visible spectrum. The mechanisms behind NP formation by fs-LIFT are discussed based on the thermomechanical response of the material. An estimative based on the heat transfer suggests the occurrence of mechanical fragmentation rather than material vaporization. The main result addressed herein, however, is the ability to deposit silver, gold, and copper nanoparticles in selected regions, supporting the development of NP-based devices via one-step processing and their application in sensors and photonic circuits. (AU)

Processo FAPESP: 13/05350-0 - Fabricação de guias de ondas em vidros calconetos usando técnicas de escrita direta à laser
Beneficiário:Juliana Mara Pinto de Almeida
Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado
Processo FAPESP: 18/11283-7 - Fotônica não linear: espectroscopia e processamento avançado de materiais
Beneficiário:Cleber Renato Mendonça
Modalidade de apoio: Auxílio à Pesquisa - Temático