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Interfacing Ag Nanoparticles with 1D Semiconductor Micro/Nanostructures via Joule Heating for Transfer Printing Nanodevices at Room Ambient

Published online by Cambridge University Press:  31 October 2012

VJ Logeeswaran ,
Aaron M. Katzenmeyer ,
Mark Triplett ,
Matthew Ombaba  and
M. Saif Islam
VJ Logeeswaran
Affiliation:
Department of Electrical and Computer Engineering, University of California-Davis, CA 95616.
Aaron M. Katzenmeyer
Affiliation:
Sandia National Laboratories, Livermore, CA 94551.
Mark Triplett
Affiliation:
Department of Electrical and Computer Engineering, University of California-Davis, CA 95616. Department of Physics, University of California-Davis, CA 95616.
Matthew Ombaba
Affiliation:
Department of Electrical and Computer Engineering, University of California-Davis, CA 95616.
M. Saif Islam
Affiliation:
Department of Electrical and Computer Engineering, University of California-Davis, CA 95616.
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Abstract

We describe an experiment to interface and characterize silver nanoparticle (AgNPs) aggregates that are self-assembled and plastically deformable on a thin gold (Au) film deposited on glass substrate. The electrical characterization is done using an electrical nanoprobe attached to a nano-manipulator inside a scanning electron microscope (SEM). Electrical current-voltage (I-V) measurements are made between the electrical nanoprobe in contact with the nanoparticle and the Au film. The Ag nanoparticles have diameters ranging between ~200-800nm and are self-assembled on a thiolated 100nm Au film. Application of a contact force via the nanoprobe even after substantial particle deformation reveals initially a small non-linear current. Upon current annealing through Joule heating, significant improvement in the electrical contact at the AgNP/substrate interface was observed. This is most likely based on bonding of the AgNPs to the Au film after passage of a high current. The need for such an annealing/sintering step will be critical in forming good ohmic contacts at ambient conditions during transfer printing of semiconductor micro/nanopillars.

Keywords

sinteringself-assemblynano-indentation
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1429: Symposium D – Nanocontacts—Emerging Materials and Processing for Ohmicity and Rectification , 2012 , mrss12-1429-d03-20
Copyright
Copyright © Materials Research Society 2012

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References

REFERENCES

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