Enhanced Electrical Conductivity of Silver Nanoparticles for High Frequency Electronic Applications | Zendy

Ali H. Alshehri | Zendy; Małgorzata Jakubowska | Zendy; Anna Młożniak | Zendy; Michal Horaczek | Zendy; Diana Rudka | Zendy; C. Free | Zendy; J. David Carey | Zendy

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Enhanced Electrical Conductivity of Silver Nanoparticles for High Frequency Electronic Applications

Author(s) -

Ali H. Alshehri,

Małgorzata Jakubowska,

Anna Młożniak,

Michal Horaczek,

Diana Rudka,

C. Free,

J. David Carey

Publication year - 2012

Publication title -

acs applied materials and interfaces

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.535

H-Index - 228

eISSN - 1944-8252

pISSN - 1944-8244

DOI - 10.1021/am3022569

Subject(s) - materials science , electrical conductor , silver nanoparticle , nanoparticle , surface roughness , electrical resistivity and conductivity , optoelectronics , micrometer , nanotechnology , terahertz radiation , composite material , optics , electrical engineering , physics , engineering

An enhancement in the electrical performance of low temperature screen-printed silver nanoparticles (nAg) has been measured at frequencies up to 220 GHz. We show that for frequencies above 80 GHz the electrical losses in coplanar waveguide structures fabricated using nAg at 350 °C are lower than those found in conventional thick film Ag conductors consisting of micrometer-sized grains and fabricated at 850 °C. The improved electrical performance is attributed to the better packing of the silver nanoparticles resulting in lower surface roughness by a factor of 3. We discuss how the use of silver nanoparticles offers new routes to high frequency applications on temperature sensitive conformal substrates and in sub-THz metamaterials.

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