Using Laser-Induced Thermal Voxels to Pattern Diverse Materials at the Solid-Liquid Interface

Lauren D Zarzar; B S Swartzentruber; Brian F Donovan; Patrick E Hopkins; Bryan Kaehr

doi:10.1021/acsami.6b06625

Using Laser-Induced Thermal Voxels to Pattern Diverse Materials at the Solid-Liquid Interface

ACS Appl Mater Interfaces. 2016 Aug 24;8(33):21134-9. doi: 10.1021/acsami.6b06625. Epub 2016 Aug 15.

Authors

Lauren D Zarzar¹, B S Swartzentruber², Brian F Donovan³, Patrick E Hopkins³, Bryan Kaehr^{4

5}

Affiliations

¹ Department of Materials Science and Engineering, Department of Chemistry, The Pennsylvania State University , University Park, Pennsylvania 16802, United States.
² Center for Integrated Nanotechnologies, Sandia National Laboratories , Albuquerque, New Mexico 87545, United States.
³ Department of Mechanical and Aerospace Engineering, University of Virginia , Charlottesville, Virginia 22904, United States.
⁴ Advanced Materials Laboratory, Sandia National Laboratories , Albuquerque, New Mexico 87185, United States.
⁵ Department of Chemical and Biological Engineering, The University of New Mexico , Albuquerque, New Mexico 87131, United States.

PMID: 27491598
DOI: 10.1021/acsami.6b06625

Abstract

We describe a high-resolution patterning approach that combines the spatial control inherent to laser direct writing with the versatility of benchtop chemical synthesis. By taking advantage of the steep thermal gradient that occurs while laser heating a metal edge in contact with solution, diverse materials comprising transition metals are patterned with feature size resolution nearing 1 μm. We demonstrate fabrication of reduced metallic nickel in one step and examine electrical properties and air stability through direct-write integration onto a device platform. This strategy expands the chemistries and materials that can be used in combination with laser direct writing.

Keywords: Ni electrode; laser direct write; laser-induced heating; metals; microstructures; solvothermal synthesis.