Nano-Silver Paste with a Low Sintering Temperature

2011 ◽  
Vol 391-392 ◽  
pp. 745-748
Author(s):  
Shi Yong Luo ◽  
Juan Chen ◽  
Wen Cai Xu ◽  
Xin Lin Zhang ◽  
Li Xia Huo
Keyword(s):  
Shear Rate ◽  
Screen Printing ◽  
Sintering Temperature ◽  
Acetate Solution ◽  
Ethyl Acetate Solution ◽  
Silver Particles ◽  
Pseudoplastic Fluid ◽  
Nano Silver ◽  
Low Sintering Temperature ◽  
Electrical Components

A paste with as low as 300°C sintering temperature was prepared by using nano silver particles and nitrocellulose ethyl acetate solution. The rheological and thixotropic behaviors of the typical paste were characterized and their effects on the screen printing ability were analyzed in details. The paste demonstrates a typical shear thinning rheological behavior and thixotropic of pseudoplastic fluid. The apparent viscosity decreased rapidly with the increase of the shear rate. The paste is proper for the manufacturing electrical components at a low sintering temperature as low as 300°C.

Rheological Behavior of Silver Paste Prepared from Nanoparticles

2011 ◽  
Vol 327 ◽  
pp. 120-123
Author(s):  
Shi Yong Luo ◽  
Juan Chen ◽  
Wen Cai Xu ◽  
Xin Lin Zhang ◽  
Li Xia Huo
Keyword(s):  
Shear Rate ◽  
Low Temperature ◽  
Rheological Behavior ◽  
Ethyl Cellulose ◽  
Screen Printing ◽  
Sintering Temperature ◽  
Cellulose Solution ◽  
Silver Particles ◽  
Pseudoplastic Fluid ◽  
Electrical Components

A paste with as low as 300°C sintering temperature was prepared by using nano silver particles and ethyl cellulose solution. The rheological and thixotropic behaviors of the typical paste were characterized and their effects on the screen printing ability were analyzed in details. The paste demonstrates a typical shear thinning rheological behavior and thixotropic of pseudoplastic fluid. The apparent viscosity decreased rapidly with the increase of the shear rate. The paste is proper for the manufacturing electrical components at a low temperature as low as 300°C.

scholarly journals Nano-Silver Ink of High Conductivity and Low Sintering Temperature for Paper Electronics

2019 ◽  
Vol 14 (1) ◽  
Author(s):  
Lixin Mo ◽  
Zhenxin Guo ◽  
Zhenguo Wang ◽  
Li Yang ◽  
Yi Fang ◽  
...  
Keyword(s):  
Sintering Temperature ◽  
High Conductivity ◽  
Nano Silver ◽  
Silver Ink ◽  
Paper Electronics ◽  
Low Sintering Temperature

SYNTHESIS OF CoFe2O4/Pb(Zr0.53Ti0.47)O3 MULTIFERROIC COMPOSITE THICK FILMS BY LOW-SINTERING-TEMPERATURE SCREEN PRINTING METHOD

2011 ◽  
Vol 01 (01) ◽  
pp. 119-125 ◽  
Author(s):  
W. CHEN ◽  
C. X. HUANG ◽  
T. S. YAN ◽  
W. ZHU ◽  
Z. P. LI ◽  
...  
Keyword(s):  
Screen Printing ◽  
Sintering Temperature ◽  
Ferroelectric Properties ◽  
Thick Films ◽  
Electron Microscopic ◽  
Screen Printing Method ◽  
Pzt Films ◽  
Multiferroic Composite ◽  
Low Sintering Temperature ◽  
Printing Method

CoFe 2 O 4/ Pb ( Zr 0.53 Ti 0.47) O 3 (abbreviated as CFO/PZT) multiferroic composite thick films were successfully fabricated on alumina substrate with gold bottom electrode by screen printing method at a low-sintering temperature. The processing included the modification and dispersion of ferromagnetic CFO powder and ferroelectric PZT powder, the preparation of uniform pastes, and the selection of proper annealing temperature for composite thick films. Transmission electron microscopic pictures (TEM) indicated the submicron meter of particles size for both CFO and PZT particles. After annealing at 900°C for 1 h in air, tape test confirmed the quality of multiferroic thick films as well as pure CFO and PZT films. X-ray diffraction (XRD) showed a coexistence of CFO and PZT phases; furthermore, a smooth surface was observed through scanning electron microscopic (SEM) pictures along with the sharp cross-sectional picture, indicative of 100 μm of film thickness. Ferromagnetic and ferroelectric properties were observed in CFO/PZT films simultaneously at room temperature. Compared with the reported CFO/PZT multiferrroic thin films, the present ferromagnetic property was closing to that of the chemical sol-gel synthesized film and even that from the physical pulsed laser deposition technique. However, the ferroelectric property showed a degenerated behavior, possible reasons for this was discussed and further optimization was also proposed for the potential multifunctional application.

scholarly journals Low Sintering Temperature Nano-Silver Pastes with High Bonding Strength by Adding Silver 2-Ethylhexanoate

Materials ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 5941
Author(s):  
Steve Lien-Chung Hsu ◽  
Yen-Ting Chen ◽  
Meng-Liang Chen ◽  
In-Gann Chen
Keyword(s):  
Silver Nanoparticles ◽  
Shear Strength ◽  
Sintering Temperature ◽  
Thermal Compression ◽  
Silver Paste ◽  
Nano Silver ◽  
Low Sintering Temperature ◽  
The Relationship ◽  
Proper Condition ◽  
Lower Resistivity

A silver precursor (silver 2-ethylhexanoate) and silver nanoparticles were synthesized and used to prepare a low sintering temperature nano-silver paste (PM03). We optimized the amount of silver 2-ethylhexanoate added and the sintering temperature to obtain the best performance of the nano-silver paste. The relationship between the microstructures and properties of the paste was studied. The addition of silver 2-ethylhexanoate resulted in less porosity, leading to lower resistivity and higher shear strength. Thermal compression of the paste PM03 at 250 °C with 10 MPa pressure for 30 min was found to be the proper condition for copper-to-copper bonding. The resistivity was (3.50 ± 0.02) × 10−7 Ω∙m, and the shear strength was 57.48 MPa.

Insecticidal, antibacterial and dye adsorbent properties of Sargassum muticum decorated nano-silver particles

2021 ◽  
Vol 139 ◽  
pp. 432-441
Author(s):  
Subrata Trivedi ◽  
Mohammed Ali Alshehri ◽  
Al Thabiani Aziz ◽  
Chellasamy Panneerselvam ◽  
Hatem. A. Al-Aoh ◽  
...  
Keyword(s):  
Sargassum Muticum ◽  
Silver Particles ◽  
Nano Silver

Effects of polymer binder on rheological properties of silver pastes for screen printing front electrode films of solar cells

2015 ◽  
Vol 29 (10n11) ◽  
pp. 1540027 ◽  
Author(s):  
Jun Qin ◽  
Weijun Zhang ◽  
Zhuofeng Liu ◽  
Shuxin Bai
Keyword(s):  
Solar Cells ◽  
Rheological Properties ◽  
Screen Printing ◽  
Model Parameters ◽  
Silver Particles ◽  
Front Electrode ◽  
Strength Of Interaction ◽  
Fundamental Understanding ◽  
Surface Modified ◽  
Down Sweep

The purpose of the study is to characterize and improve the fundamental understanding of the effects of Ethyl Cellulose (EC) binder on the rheological properties of silver pastes for screen printing front electrode films of solar cells. Dispersions of silver particles (surface modified with oleic acid) in EC polymer solutions with and without thixotropic agent were prepared; and yield stress values were measured by setting shear stress to characterize the strength of interaction in pastes. Week flocculation network of silver particles is produced due to depletion of flocculation. EC polymer also has a significant interaction with thixotropic agent. Down-sweep flow curves of dispersions without thixotropic agent were measured and well fitted by Generalized Casson model. The model parameters p indicated that EC polymer with high molecular weight has a stronger shear-thinning ability. Steady-state flow, three interval thixotropy shear test (3ITT) and oscillatory measurements were conducted to study the effect of EC content on viscosity, structure rebuilding and viscoelastic properties of electrode pastes. Increasing EC polymer is not the best way to prevent the layer printed from laying down.

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