Chemical sintering of Ag nanoparticle conductive inks at room temperature for printable electronics

Silver (Ag) nanoparticles synthesized in an aqueous system was sintered at room temperature using NaCl solution. The Ag nanoparticles have an average diameter of about 24 nm. After dispersing the Ag nanoparticles in 50mM NaCl solution, a significant increase in particle size to about 206 nm was observed. On the other hand, the particle size was also increased to about 175 nm when the Ag nanoparticles were printed and then 50mM NaCl solution was dropped onto the printed Ag nanoparticles. The enlargement of particle size was accompanied by the increase in conductivity of the Ag nanoparticle ink. The resistance was reduced from 57.7 to 6.5 and 6.7 ohms for the as-prepared and sintered Ag nanoparticles using two different treatments, respectively. The sintered Ag nanoparticle ink formulation exhibit high conductivity when drawn on both cellulose acetate film and bond paper even after bending and folding of the substrates.

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Fusing of Silver Nanoparticles at Room Temperature Using Halide Solutions for Conductive Inks

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.833.181 ◽

2020 ◽

Vol 833 ◽

pp. 181-185 ◽

Cited By ~ 1

Author(s):

Bethel Faith Y. Rezaga ◽

Mary Donnabelle L. Balela

Keyword(s):

Particle Size ◽

Ag Nanoparticles ◽

Room Temperature ◽

Average Diameter ◽

Aqueous System ◽

Ag Nanoparticle ◽

Nacl Solution ◽

Halide Solution ◽

Sintered Ag ◽

Nanoparticle Ink

Fusing of silver (Ag) nanoparticles synthesized in an aqueous system was observed at room temperature using halide solutions. The as-synthesized Ag nanoparticles have an average diameter of about 24 nm. After dispersing the Ag nanoparticles in a halide solution, a significant increase in particle size to about 188-197 nm was observed. The enlargement of particle size was accompanied by the increase in conductivity of the Ag nanoparticle ink. The resistance was reduced from 110 kiloohms to 35 and 9.3 ohms for the as-prepared and sintered Ag nanoparticles using NaBr and NaCl solution, respectively.

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Novel Room Temperature Wiring Process of Ag Nanoparticle Paste

Polytronic 2007 - 6th International Conference on Polymers and Adhesives in Microelectronics and Photonics ◽

10.1109/polytr.2007.4339149 ◽

2007 ◽

Cited By ~ 7

Author(s):

Daisuke Wakuda ◽

Mariko Hatamura ◽

Katsuaki Suganuma

Keyword(s):

Room Temperature ◽

Ag Nanoparticle

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Properties of Ag nanoparticle paste for room temperature bonding

2009 59th Electronic Components and Technology Conference ◽

10.1109/ectc.2009.5074220 ◽

2009 ◽

Cited By ~ 1

Author(s):

Daisuke Wakuda ◽

Keun-Soo Kim ◽

Katsuaki Suganuma

Keyword(s):

Room Temperature ◽

Ag Nanoparticle

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Decorating Semiconductor Silver-Tetracyanoquinodimethane Nanowires with Silver Nanoparticles from Ionic Liquids

Australian Journal of Chemistry ◽

10.1071/ch13393 ◽

2014 ◽

Vol 67 (2) ◽

pp. 213

Author(s):

Chuan Zhao ◽

Changlong Xiao ◽

Hubert M. Chan ◽

Xunyu Lu

Keyword(s):

Silver Nanoparticles ◽

Ionic Liquid ◽

Room Temperature ◽

Reaction Medium ◽

Blocking Agent ◽

Nucleation And Growth ◽

Hybrid Structures ◽

Ag Nanoparticle ◽

Ambient Conditions ◽

X Ray

Hybrid semiconducting silver-tetracyanoquinodimethane (AgTCNQ) nanowires decorated with Ag nanoparticles have been synthesized at room temperature in the ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate. Hydroquinone was applied to reduce Ag+ and TCNQ to silver nanoparticles, and TCNQ–, respectively, under ambient conditions. AgTCNQ nanowires were formed via spontaneous electrolysis between Ag metal nanoparticles and TCNQ, and reaction between Ag+ and TCNQ–. Microscopic, spectroscopic, and X-ray characterizations all confirmed the formation of crystalline Ag nanoparticle–AgTCNQ nanowire hybrid structures. The ionic liquid was used as a reaction medium, but also as a stabilizing (or blocking) agent to control the nucleation and growth rate of AgTCNQ wires.

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CdSe Nanoparticle/Metal-Organic Inks For Printable Electronics

MRS Proceedings ◽

10.1557/proc-736-d7.1 ◽

2002 ◽

Vol 736 ◽

Cited By ~ 2

Author(s):

Douglas L. Schulz

Keyword(s):

Field Effect ◽

Organic Molecule ◽

Room Temperature ◽

Field Effect Transistors ◽

Spray Deposition ◽

Cdse Nanoparticles ◽

Flexible Substrates ◽

Printable Electronics ◽

Aqueous Solvent ◽

Metal Organic

ABSTRACTThe research objective of this project was the spray deposition of CdSe films using a nanoparticle CdSe suspension as the precursor ink. This ink consisted of CdSe nanoparticles (nano-CdSe) mixed with a “reactive dispersant” in a non-aqueous solvent. The reactive dispersant, a metal-organic molecule, served two purposes; (1) to form a dispersed CdSe suspension at room temperature, and (2) to thermally “unzip” giving CdSe and a byproduct. The CdSe thereby formed could be deposited at the grain boundaries and serve to physically and electrically connect the CdSe nanoparticles at moderate, plastic-compatible temperatures. If electronics-grade CdSe layers could be produced at low deposition temperatures, this approach may be applicable to printed CdSe-based thin film field-effect transistors (TFTs) on flexible substrates.

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