Controllable assembly of silver nanoparticles induced by femtosecond laser direct writing. Issue 2 (April 2015)

• Record Type: Journal Article
• Authors: Wang, Huan; Liu, Sen; Zhang, Yong-Lai; Wang, Jian-Nan; Wang, Lei; Xia, Hong; Chen, Qi-Dai; Ding, Hong; Sun, Hong-Bo
• Is Part Of: Science and technology of advanced materials. Volume 16:Issue 2(2015)
• Page Start: 1781
• Page End: 1804
• Publication Date: 2015-04
• Subjects: Materials -- Technological innovations -- Periodicals; 620.112
• DOI: 10.1088/1468-6996/16/2/024805
• Languages: English
• ISSNs: 1468-6996

Abstract

<abstract> <title>Abstract</title> <p>We report controllable assembly of silver nanoparticles (Ag NPs) for patterning of silver microstructures. The assembly is induced by femtosecond laser direct writing (FsLDW). A tightly focused femtosecond laser beam is capable of trapping and driving Ag NPs to form desired micropatterns with a high resolution of ∼190 nm. Taking advantage of the 'direct writing' feature, three microelectrodes have been integrated with a microfluidic chip; two silver-based microdevices including a microheater and a catalytic reactor have been fabricated inside a microfluidic channel for chip functionalization. The FsLDW-induced programmable assembly of Ag NPs may open up a new way to the designable patterning of silver microstructures toward flexible fabrication and integration of functional devices.</p> </abstract>