Characterization of the electrical properties of individual p-Si microwire/polymer/n-Si microwire assemblies

Iman Yahyaie, Kevin McEleney, Michael G. Walter, Derek R. Oliver, Douglas J. Thomson, Michael S. Freund, Nathan S Lewis

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The electrical properties of individual p- and n-type silicon microwires have been investigated using a direct contact formation technique, in which an Ohmic contact between the tungsten probe and microwire was produced by applying mechanical force to the probe/microwire junction. This method alleviated the need for lithography or a high-temperature process to form a metal/Si ohmic contact. The technique was also used to characterize the Si microwire/conducting polymer junctions in a single cell of a membrane-supported bilayer Si microwire structure that is of interest for the direct production of fuels from sunlight. The data indicate that the combination of PEDOT-PSS-Nafion and highly doped Si microwires is suitable, from an electrical resistance perspective, to be used in a solar fuels generation device.

Original languageEnglish
Pages (from-to)24945-24950
Number of pages6
JournalJournal of Physical Chemistry C
Volume115
Issue number50
DOIs
Publication statusPublished - Dec 22 2011

Fingerprint

Ohmic contacts
assemblies
electric contacts
Polymers
Electric properties
electrical properties
Tungsten
Acoustic impedance
probes
Conducting polymers
polymers
conducting polymers
Silicon
sunlight
electrical resistance
Lithography
tungsten
lithography
Metals
membranes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Energy(all)

Cite this

Characterization of the electrical properties of individual p-Si microwire/polymer/n-Si microwire assemblies. / Yahyaie, Iman; McEleney, Kevin; Walter, Michael G.; Oliver, Derek R.; Thomson, Douglas J.; Freund, Michael S.; Lewis, Nathan S.

In: Journal of Physical Chemistry C, Vol. 115, No. 50, 22.12.2011, p. 24945-24950.

Research output: Contribution to journalArticle

Yahyaie, Iman ; McEleney, Kevin ; Walter, Michael G. ; Oliver, Derek R. ; Thomson, Douglas J. ; Freund, Michael S. ; Lewis, Nathan S. / Characterization of the electrical properties of individual p-Si microwire/polymer/n-Si microwire assemblies. In: Journal of Physical Chemistry C. 2011 ; Vol. 115, No. 50. pp. 24945-24950.
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