High-Resolution Nanoprinting Approach through Self-Driven Electrodeposition

Journal Article · Sat Dec 01 00:00:00 EST 2018 · Journal of the Electrochemical Society

DOI:https://doi.org/10.1149/2.0191901jes· OSTI ID:1559441

Feng, Zhange  ^[1]; Xie, Yuanyuan ^[2]; Georgescu, Nicholas S. ^[3]

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1. Argonne National Lab. (ANL), Argonne, IL (United States). Chemical Sciences and Engineering Division
2. California State Univ.-Fresno, Fresno, CA (United States). Dept. of Mechanical Engineering
3. McGill Univ., Montreal, QC (Canada). Dept of Chemistry

A novel high-resolution nanoprinting method through self-driven electrodeposition is proposed and certain aspects are confirmed with known copper electrochemistry through multiphysics modeling. A series of simulations are conducted involving a nanopipette filled with concentrated CuSO₄ solution introduced close to the working electrode (WE) in the cell of diluted CuSO₄ electrolyte, where Cu²⁺ ions diffuse from nanopipette to the electrode and form a limited region with more concentrated cations compared to the rest of the cell. Meanwhile, this process leads to a more positive equilibrium potential of copper redox reaction and thereby local negative surface overpotential on WE. The negative surface overpotential drives the Cu²⁺ electrodeposition in the form of a nano-protrusion on the target location.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES)
• Grant/Contract Number: AC02-06CH11357
• OSTI ID: 1559441
• Journal Information: Journal of the Electrochemical Society, Vol. 166, Issue 1; ISSN 0013-4651
• Publisher: The Electrochemical Society
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY