Effect of silver nanoparticle ink drop spacing on the characteristics of coplanar waveguide monopole antennas printed on flexible substrates

2017 ◽  
Vol 11 (11) ◽  
pp. 1572-1577 ◽  
Author(s):  
S.A. Mohassieb ◽  
Khaled Kirah ◽  
Edgar Dörsam ◽  
Ahmed S.G. Khalil ◽  
Hadia M. El‐Hennawy
Keyword(s):  
Silver Nanoparticle ◽  
Coplanar Waveguide ◽  
Flexible Substrates ◽  
Monopole Antennas ◽  
Nanoparticle Ink

scholarly journals Low-Cost Printed Flexible Antenna by Using an Office Printer for Conformal Applications

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Kashif Nisar Paracha ◽  
Sharul Kamal Abdul Rahim ◽  
Hassan Tariq Chattha ◽  
Saqer Saleh Aljaafreh ◽  
Sabih ur Rehman ◽  
...  
Keyword(s):  
Silver Nanoparticle ◽  
Low Cost ◽  
Coplanar Waveguide ◽  
Single Layer ◽  
Nanoparticle Layer ◽  
Layer Deposition ◽  
5G Network ◽  
Flexible Antenna ◽  
Nanoparticle Ink ◽  
Pet Substrate

A low-cost inkjet printing method for antenna fabrication on a polyethylene terephthalate (PET) substrate is presented in this paper. An office inkjet printer is used to have desired patterns of silver nanoparticle ink on the PET substrate without any postprocessing. Silver nanoparticle ink cures instantly as soon as it is ejected from the printer on a chemically treated PET substrate. The thickness of the silver nanoparticle layer was measured to be 300 nm with a sheet resistance of as low as 0.3 Ω/sq and a conductivity around 1.11 × 107 S/m with single layer deposition. A coplanar waveguide- (CPW-) fed Z-shape planar antenna on the PET substrate achieved the measured radiation efficiency of 62% and the IEEE gain of 1.44 dBi at 2.45 GHz. The printed antenna is also tested in bending conditions to ascertain its performance for the Internet of things (IoT) conformal applications for the future 5G network.

scholarly journals Low-reflective wire-grid polariser sheet in the visible region fabricated by a nanoprinting process

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ryohei Hokari ◽  
Kyohei Takakuwa ◽  
Hirohisa Kato ◽  
Akitaka Yamamoto ◽  
Yusuke Yamaguchi ◽  
...  
Keyword(s):  
Silver Nanoparticle ◽  
Visible Region ◽  
Sintered Body ◽  
Visible Light Region ◽  
Uneven Surface ◽  
Optical Elements ◽  
Wire Grid ◽  
Light Region ◽  
Sophisticated Equipment ◽  
Nanoparticle Ink

AbstractFor the construction of next-generation optical products and systems, the evolution of polariser sheets is a necessary requirement. To this end, a low-reflective wire-grid polariser (WGP) sheet for the visible light region is demonstrated, the nanowires of which consist of a sintered body of silver nanoparticle ink. The nanowires are formed by a nanoprinting process using a thermal nanoimprint method and ink filling. This process makes it easier to achieve multiple wafer-scale productions without using sophisticated equipment compared to conventional WGP nanofabrication techniques, which typically employ lithography and elaborate etching processes. The optical characteristics are controlled by the shape of the printed nanowires. A WGP sheet with a luminous degree of polarisation of 99.0%, a total luminous transmittance of 13.6%, and a luminous reflectance of 3.6% is produced. Its low reflectance is achieved through the uneven surface derived from the sintered body of the nanoparticle ink, and the shape of the bottom of the nanowire is derived from the tip shape of the mould structure. Furthermore, the printed WGP sheet has the durability required for the manufacturing of curved products, including sunglasses. The optical structures made of nanoparticle ink using this nanoprinting process have the potential to significantly contribute to the development of fine-structured optical elements with unprecedented functionality.

In-Coated Carbon Nanotubes for Flexible Interconnects

2012 ◽  
Vol 2012 (DPC) ◽  
pp. 000968-000985
Author(s):  
Pingye Xu ◽  
Michael C. Hamilton
Keyword(s):  
Carbon Nanotube ◽  
Sheet Resistance ◽  
Silver Nanoparticle ◽  
Transmission Lines ◽  
Flexible Substrates ◽  
Ink Jet Printing ◽  
Silver Ink ◽  
Ink Jet ◽  
Jet Printing ◽  
Coated Carbon

This work explores a method to construct metal-coated carbon nanotube (CNT) structures, which are potential candidates for interconnects, transmission lines and contact structures. This simple method is suitable to many applications including flexible substrates. In this work, electroplating is used to coat a carbon nanotube surface with Indium. CNT films are prepared using drop casting method on different substrates: Ni coated silicon wafer, copy paper and photo paper. The CNT dispersion used for this work is prepared using sonication and centrifugation with a surfactant. The resulting dispersion has 0.8 wt. % of multi-walled CNTs and 0.5 wt. % of sodium dodecyl sulfate (SDS) in DI water. This dispersion is modified to reduce resistivity by adding either silver nanoparticle powder or silver ink. Electroplating is done at room temperature with a current density of 0.02 A/cm2. This work addresses two issues about electroplating on CNT: low electrical conductivity of CNT film and low CNT adhesion to substrate. A CNT film on a Ni surface displays poor adhesion; the film peels off easily during ultrasonication and electroplating. After thermal annealing or microwave treatment, adhesion between the CNT film and Ni is greatly enhanced such that no CNT film peel-off is observed during electroplating. A CNT film on paper has a high sheet resistance. As a result, Indium is only plated on the CNT film near the attached electrode. To reduce the film sheet resistance, the CNT solution is modified by adding silver nanoparticle powder or silver ink. Ethanol rinsing is also performed on the CNT film surface to wash away surfactant and further reduce sheet resistance. On-going work involves ink-jet printing of CNT solutions onto flexible substrates. Indium, as an example metallization, will be plated on these ink-jet printing defined transmission lines and interconnects patterns. Performance of these structures will be presented.

RF Loss Characteristics of Coplanar Waveguide Employing Chemically Modified Graphene on Flexible Substrates

2018 ◽  
Vol 19 (2) ◽  
pp. 84-89 ◽  
Author(s):  
Hyun-Soo Oh ◽  
Young Yun ◽  
Sooyeon Jeong ◽  
Seung Yol Jeong ◽  
Hong Seung Kim
Keyword(s):  
Coplanar Waveguide ◽  
Flexible Substrates ◽  
Chemically Modified ◽  
Rf Loss ◽  
Modified Graphene

Cracks in the 3D-printed conductive traces of silver nanoparticle ink

2019 ◽  
Vol 29 (9) ◽  
pp. 097001 ◽  
Author(s):  
Neil Dalal ◽  
Yuan Gu ◽  
Daniel R Hines ◽  
Abhijit Dasgupta ◽  
Siddhartha Das
Keyword(s):  
Silver Nanoparticle ◽  
3D Printed ◽  
Nanoparticle Ink

scholarly journals Electrical Sintering of Silver Nanoparticle Ink Studied by In-Situ TEM Probing

PLoS ONE ◽  
2011 ◽  
Vol 6 (2) ◽  
pp. e17209 ◽  
Author(s):  
Magnus Hummelgård ◽  
Renyun Zhang ◽  
Hans-Erik Nilsson ◽  
Håkan Olin
Keyword(s):  
Silver Nanoparticle ◽  
In Situ Tem ◽  
Nanoparticle Ink

Photocatalytic Effect of TiO2 Nanoparticles on Room-temperature Sinterable Silver Nanoparticle Ink with Poly(N-vinylpyrrolidone) Ligand

2013 ◽  
Vol 42 (6) ◽  
pp. 649-650 ◽  
Author(s):  
Mi Yeon Lee ◽  
Jung Yup Lee ◽  
Won Jin Lee ◽  
So Yeon Kim ◽  
Young Ho Park ◽  
...  
Keyword(s):  
Tio2 Nanoparticles ◽  
Silver Nanoparticle ◽  
Room Temperature ◽  
Photocatalytic Effect ◽  
Nanoparticle Ink

Room-temperature Sinterable Silver Nanoparticle Ink with Low-molecular-weight Poly(N-vinylpyrrolidone) Ligand

2013 ◽  
Vol 42 (3) ◽  
pp. 232-234 ◽  
Author(s):  
Mi Yeon Lee ◽  
Won Jin Lee ◽  
Arup Kumer Roy ◽  
Kang Seok Lee ◽  
Sung Young Park ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Silver Nanoparticle ◽  
Room Temperature ◽  
Low Molecular Weight ◽  
Nanoparticle Ink
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