Direct patterning of silver particles on porous silicon by inkjet printing of a silver salt via in-situ reduction

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• 作者：Alessandro Chiolerio (1)
  Alessandro Virga (2)
  Paolo Pandolfi (3)
  Paola Martino (3)
  Paola Rivolo (2) (3)
  Francesco Geobaldo (2)
  Fabrizio Giorgis (1) (2)
  
• 关键词：Inkjet printing technology ; Ag nanoparticles ; Porous silicon ; SERS
• 刊名：Nanoscale Research Letters
• 出版年：2012
• 出版时间：December 2012
• 年：2012
• 卷：7
• 期：1
• 全文大小：628KB
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• 作者单位：Alessandro Chiolerio (1)
  Alessandro Virga (2)
  Paolo Pandolfi (3)
  Paola Martino (3)
  Paola Rivolo (2) (3)
  Francesco Geobaldo (2)
  Fabrizio Giorgis (1) (2)
  
  1. Istituto Italiano di Tecnologia, Center for Space Human Robotics, Corso Trento 21, Torino, 10129, Italy
  2. Applied Science and Technology Department, Politecnico di Torino, Corso Duca degli Abruzzi 24, Torino, 10129, Italy
  3. Politronica Inkjet Printing S.r.L., Corso Castelfidardo 30/A, Torino, 10129, Italy
  
• ISSN：1556-276X

文摘

We have developed a method for obtaining a direct pattern of silver nanoparticles (NPs) on porous silicon (p-Si) by means of inkjet printing (IjP) of a silver salt. Silver NPs were obtained by p-Si mediated in-situ reduction of Ag+ cations using solutions based on AgNO3 which were directly printed on p-Si according to specific geometries and process parameters. The main difference with respect to existing literature is that normally, inkjet printing is applied to silver (metal) NP suspensions, while in our experiment the NPs are formed after jetting the solution on the reactive substrate. We performed both optical and scanning electron microscopes on the NPs traces, correlating the morphology features with the IjP parameters, giving an insight on the synthesis kinetics. The patterned NPs show good performances as SERS substrates.