DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Simulation of two nanoparticle melting to understand the conductivity drop of 3D-printed silver nanowires

Journal Article · · Materials & Design
 [1];  [2]; ORCiD logo [3]
  1. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Computer Science and Engineering Division
  2. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Energy Science and Technology Division
  3. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Chemical Sciences Division

The future flexible sensor technology will require low-temperature, fast processing 3D printing techniques that will rely heavily on the quality of nanoparticle (NP) Ink. Electrical conductivity has been found to decrease in majority of the 3D printed electronic wires. Herein we report a fundamental understanding in drop of electrical conductivity in processed silver (Ag) line wire, generally found in Ag-nanoparticle Ink, using large-scale atomistic molecular dynamics (MD) simulations of sintering of five different sizes of Ag NPs. To preserve the high conductivity of pure silver wires, the integrity of the pristine face-centered cubic (FCC) crystalline structure must be retained in the processed line wires. Simulations show that the pristine Ag FCC structures of the nanoparticles are not recovered after melting and resolidification, instead, the resolidified material is paracrystaline. The breakdown of pristine FCC structures might be the cause of the drop in conductivity of processed Ag wires. Simulation results suggest that the intermediate size nanoparticles retain highest percentage of the pristine silver face-centered cubic (FCC) structure after pulse treatments. Our results show that the most promising Ag-Ink should contain smaller to medium size silver NPs that can retain FCC structure after 3D printing of the Ag-Ink.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Electricity (OE); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Building Technologies Office
Grant/Contract Number:
AC05-00OR22725; AC02-05CH11231
OSTI ID:
2251612
Journal Information:
Materials & Design, Vol. 236, Issue 1; ISSN 0264-1275
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (35)

Molecular-Scale Electronics: From Concept to Function journal March 2016
Woven Electronic Fibers with Sensing and Display Functions for Smart Textiles journal October 2010
Machine learning enabled acoustic detection of sub-nanomolar concentration of trypsin and plasmin in solution journal November 2018
A molecular dynamics study of sintering between nanoparticles journal April 2009
Embedded-atom-method functions for the fcc metals Cu, Ag, Au, Ni, Pd, Pt, and their alloys journal June 1986
Conductive Inks with a “Built-In” Mechanism That Enables Sintering at Room Temperature journal March 2011
Impact of Pulse Thermal Processing on the Properties of Inkjet Printed Metal and Flexible Sensors journal January 2015
Mechanistic Studies on Sintering of Silver Nanoparticles journal October 2011
Paracrystalline structure of gold, silver, palladium and platinum nanoparticles journal March 2018
Generalized Gibbs-Thomson equation for nanoparticles at grain boundaries journal May 2017
Stress-induced phase transformation and optical coupling of silver nanoparticle superlattices into mechanically stable nanowires journal June 2014
New insight into the size-controlled synthesis of silver nanoparticles and its superiority in room temperature sintering journal January 2014
Understanding supercooling mechanism in sodium sulfate decahydrate phase-change material journal June 2021
Densification and grain growth during sintering of nanosized particles journal November 2008
Interference and Radial Distribution Functions of Liquid Copper, Silver, Tin, and Mercury journal March 1965
Pulse Thermal Processing for Low Thermal Budget Integration of IGZO Thin Film Transistors journal May 2015
Visualization and analysis of atomistic simulation data with OVITO–the Open Visualization Tool journal December 2009
Semiempirical, Quantum Mechanical Calculation of Hydrogen Embrittlement in Metals journal April 1983
Silver Ink Formulations for Sinter-free Printing of Conductive Films journal February 2016
Sintering of nanoceramics journal January 2008
LAMMPS - a flexible simulation tool for particle-based materials modeling at the atomic, meso, and continuum scales journal February 2022
Hierarchical TiO2:Cu2O Nanostructures for Gas/Vapor Sensing and CO2 Sequestration journal November 2019
3D printed electronics: Processes, materials and future trends journal June 2022
Large On-Off Ratios and Negative Differential Resistance in a Molecular Electronic Device journal November 1999
Thermodynamic model of the surface energy of nanocrystals journal November 2006
Effect of nanoparticle size on the onset temperature of surface melting journal July 2009
Comparison of laser and intense pulsed light sintering (IPL) for inkjet-printed copper nanoparticle layers journal March 2015
A quantitative model to understand the microflow-controlled sintering mechanism of metal particles at nanometer to micron scale journal October 2021
Atomic insights of Cu nanoparticles melting and sintering behavior in Cu Cu direct bonding journal January 2021
Solution-derived monolithic thin films with low adhesion surface journal March 2020
Effect of Metal Complexation on the Conductance of Single-Molecular Wires Measured at Room Temperature journal May 2014
Microparacrystals: The intermediate stage between crystalline and amorphous journal January 1991
Laser Sintering of Printed Anodes for Al-Air Batteries journal January 2018
Probing neck growth mechanisms and tensile properties of sintered multi-nanoparticle Al-Cu systems via MD simulation journal August 2023
Joining of Silver Nanomaterials at Low Temperatures: Processes, Properties, and Applications journal March 2015

Figures / Tables (6)