Preparation of silver nanoparticles with hyperbranched polymers as a stabilizer for inkjet printing of flexible circuits

2019 ◽  
Vol 43 (6) ◽  
pp. 2797-2803 ◽  
Author(s):  
Yueyue Hao ◽  
Jian Gao ◽  
Zesheng Xu ◽  
Nan Zhang ◽  
Jing Luo ◽  
...  

Carboxyl-terminated hyperbranched polymer-stabilized silver nanoparticles were synthesized in the aqueous phase and used to prepare a printable conductive ink.

2021 ◽  
Vol 21 (12) ◽  
pp. 5979-5986
Author(s):  
Gui Bing Hong ◽  
Yi Hua Luo ◽  
Kai Jen Chuang ◽  
Chih Ming Ma

Noble metal nanoparticles have special properties in optical, electronic, and physical chemistry due to their high surface area and volume. With the development of electronic printing technology, inkjet printing has gradually replaced traditional spin coating and blade coating, since it leads to more material savings and a faster batch production, and the pattern can be easily designed by a computer. In this study, Ag nanoparticles were prepared by a chemical reduction method. Non-toxic, environment-friendly agents were selected to fabricate a single-shape, uniform-size, crystal-form, and monodisperse product. The effects of the reducing agent ratio and the stabilizer ratio on the size, shape, and stability of the nanoparticles are discussed. The silver nanoparticles were characterized by an ultraviolet-visible spectrophotometer (UV-vis) and a transmission electron microscope (TEM). In addition, in order to prepare conductive ink that can stably disperse for a long time and that can be applied to inkjet printing on a PET flexible substrate at a lower sintering temperature, a sintering agent and a commercial surfactant were added. The experimental results show that the best addition ratio of the precursor to the reducing agent and the stabilizer is 1:6:1. The conductive silver ink was printed and treated by a70 mM NaCl solution, and the electric resistivity was 5.17×10−4 Ω· cm.


2012 ◽  
Vol 12 (2) ◽  
pp. 55-60 ◽  
Author(s):  
Unai Balda Irurzuna ◽  
Victoria Dutschka ◽  
Alfredo Calvimontesb ◽  
Remko Akkermana

Abstract Micro-sized lines were inkjet printed on glass fibre fabrics using different droplet spacing. A conductive ink containing silver nanoparticles was used in this study. Glass fibre fabrics were differently pre-treated to avoid spontaneous spreading of the ink dispersion. The sample topography was examined using scanning electron, optical and confocal microscopy with a chromatic sensor. Printability conditions were discussed based on the results of topographic characterization and wettability measurements.


2021 ◽  
Vol 06 (06) ◽  
Author(s):  
Chien Mau Dang ◽  

This paper presents a synthesis of silver nanoparticles-based solution which was then used as conductive ink for inkjet printing application. In this work, colloidal silver nanoparticles (AgNPs) were synthesized from silver nitrate (AgNO3) with polyvinyl pyrrolidone (PVP) as a capping agent and ethylene glycol (EG) as a solvent and reducing agent. After the synthesis, the silver nanoparticle solution was characterized by Ultraviolet-visible (UV-Vis) spectrophotometry Fourier transform infrared (FTIR) method. Transmission electron microscopy (TEM) showed the nanoparticles diameter ranged from 10 nm to 60 nm which is suitable for printing process through the nozzles of the inkjet printhead (the diameter of the printing nozzles was 21.5 µm). After that, some samples with a square shape were printed using this conductive ink on glass substrates which were then heated at different temperatures by a hot plate. The samples were characterized by Field emission-Scanning electron microscopy (FE-SEM) and a non-contact surface charge analyzer. It was found that with the heat-treatment from 200oC to 250oC the printed samples obtained the resistivity of 0.4-0.5 Ω, which could be used for electronic applications


2012 ◽  
Vol 261 ◽  
pp. 554-560 ◽  
Author(s):  
Xiaolei Nie ◽  
Hong Wang ◽  
Jing Zou

2013 ◽  
Vol 1 (19) ◽  
pp. 3244 ◽  
Author(s):  
Michael Layani ◽  
Ido Cooperstein ◽  
Shlomo Magdassi

Nanomaterials ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 171
Author(s):  
Gui Bing Hong ◽  
Yi Hua Luo ◽  
Kai Jen Chuang ◽  
Hsiu Yueh Cheng ◽  
Kai Chau Chang ◽  
...  

In the scientific industry, sustainable nanotechnology has attracted great attention and has been successful in facilitating solutions to challenges presented in various fields. For the present work, silver nanoparticles (AgNPs) were prepared using a chemical reduction synthesis method. Then, a low-temperature sintering process was deployed to obtain an Ag-conductive ink preparation which could be applied to a flexible substrate. The size and shape of the AgNPs were characterized by ultraviolet–visible spectrophotometry (UV-Vis) and transmission electron microscopy (TEM). The experiments indicated that the size and agglomeration of the AgNPs could be well controlled by varying the reaction time, reaction temperature, and pH value. The rate of nanoparticle generation was the highest when the reaction temperature was 100 °C within the 40 min reaction time, achieving the most satisfactorily dispersed nanoparticles and nanoballs with an average size of 60.25 nm at a pH value of 8. Moreover, the electrical resistivity of the obtained Ag-conductive ink is controllable, under the optimal sintering temperature and time (85 °C for 5 min), leading to an optimal electrical resistivity of 9.9 × 10−6 Ω cm. The results obtained in this study, considering AgNPs and Ag-conductive ink, may also be extended to other metals in future research.


Sign in / Sign up

Export Citation Format

Share Document