Photothermal-reaction-assisted two-photon lithography of silver nanocrystals capped with thermally cleavable ligands

Won Jin Kim, Xavier Vidal, Alexander Baev, Hong Sub Jee, Mark T. Swihart, Paras N. Prasad

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

We report an alternative approach to produce micropatterns of metallic nanoparticles using photothermal-reaction-assisted two-photon direct laser writing. The patterns are achieved using a facile surface treatment of silver nanoparticles (Ag NPs) functionalized with thermally cleavable ligands; N -(tert-butoxycarbonyl)-L-cysteine methyl ester. The ligand cleavage initiated by pulsed laser-induced thermal reaction results in a significant change in dispersiblility of the nanocrystals, thereby enabling a solvent-selective development process after photopatterning. We demonstrated that Ag NP patterns with submicron linewidths can be achieved using near infrared pulsed laser illumination.

Original languageEnglish
Article number133110
Pages (from-to)133110-1-133110-3
Number of pages3
JournalApplied Physics Letters
Volume98
Issue number13
DOIs
Publication statusPublished - 28 Mar 2011
Externally publishedYes

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