Photothermal-reaction-assisted two-photon lithography of silver nanocrystals capped with thermally cleavable ligands
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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Mar 28, 2011
- Source ID
- 10.1063/1.3565245
Entities
People
- Alexander Baev
- Hong Sub Jee
- Mark T. Swihart
- Paras Nath Prasad
- Won Jin Kim
- Xavier Vidal
Organizations
- Air Force Office of Scientific Research
- University at Buffalo