Effects of impact conditions on the electrical and mechanical properties of supersonic cold sprayed Cu-Ni electrodes

Jong Gun Lee, Jong Hyuk Lee, Seongpil An, Joshua Yeosong Yoon, Jae Wook Choi, Min Gu Kang, Jeong In Lee, Hee eun Song, Salem S. Al-Deyab, Scott C. James, Yoon Mook Kang, Donghwan Kim, Suk Goo Yoon, Haeseok Lee

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Supersonic cold sprayed Cu and Ni particles were deposited on Si wafers for potential use as solar-cell front electrodes. Line-printed Ni-Cu electrodes were successfully fabricated with thicknesses between 30 and 50 μm. Choice of carrier gas (nitrogen and air) and effects of particle size and impact velocity on the electrical and mechanical properties of these Ni-Cu electrodes were quantified. The carrier gas had no discernable effect on electrode properties while increased particle sizes slightly decreased electrode specific resistivities. Impact velocity had the most pronounced influence on electrode electrical properties. Both the contact and specific resistivities decreased nearly linearly with increasing impact velocity. Adhesion strength was measured with a STAB-TEST instrument and found sufficient for all measured electrodes. The electrodes were further characterized using scanning electron microscopy, energy-dispersive X-ray spectroscopy, and auger electron spectroscopy.

Original languageEnglish
JournalJournal of Alloys and Compounds
DOIs
Publication statusAccepted/In press - 2016 Aug 25

Fingerprint

Electric properties
Mechanical properties
Electrodes
Gases
Particle size
Bond strength (materials)
Auger electron spectroscopy
Solar cells
Nitrogen
Scanning electron microscopy
Air

Keywords

  • Contact resistivity
  • Copper-nickel electrode
  • Silicon wafer
  • Supersonic cold spraying

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Effects of impact conditions on the electrical and mechanical properties of supersonic cold sprayed Cu-Ni electrodes. / Lee, Jong Gun; Lee, Jong Hyuk; An, Seongpil; Yoon, Joshua Yeosong; Choi, Jae Wook; Kang, Min Gu; Lee, Jeong In; Song, Hee eun; Al-Deyab, Salem S.; James, Scott C.; Kang, Yoon Mook; Kim, Donghwan; Yoon, Suk Goo; Lee, Haeseok.

In: Journal of Alloys and Compounds, 25.08.2016.

Research output: Contribution to journalArticle

Lee, Jong Gun ; Lee, Jong Hyuk ; An, Seongpil ; Yoon, Joshua Yeosong ; Choi, Jae Wook ; Kang, Min Gu ; Lee, Jeong In ; Song, Hee eun ; Al-Deyab, Salem S. ; James, Scott C. ; Kang, Yoon Mook ; Kim, Donghwan ; Yoon, Suk Goo ; Lee, Haeseok. / Effects of impact conditions on the electrical and mechanical properties of supersonic cold sprayed Cu-Ni electrodes. In: Journal of Alloys and Compounds. 2016.
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abstract = "Supersonic cold sprayed Cu and Ni particles were deposited on Si wafers for potential use as solar-cell front electrodes. Line-printed Ni-Cu electrodes were successfully fabricated with thicknesses between 30 and 50 μm. Choice of carrier gas (nitrogen and air) and effects of particle size and impact velocity on the electrical and mechanical properties of these Ni-Cu electrodes were quantified. The carrier gas had no discernable effect on electrode properties while increased particle sizes slightly decreased electrode specific resistivities. Impact velocity had the most pronounced influence on electrode electrical properties. Both the contact and specific resistivities decreased nearly linearly with increasing impact velocity. Adhesion strength was measured with a STAB-TEST instrument and found sufficient for all measured electrodes. The electrodes were further characterized using scanning electron microscopy, energy-dispersive X-ray spectroscopy, and auger electron spectroscopy.",
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AU - Yoon, Joshua Yeosong

AU - Choi, Jae Wook

AU - Kang, Min Gu

AU - Lee, Jeong In

AU - Song, Hee eun

AU - Al-Deyab, Salem S.

AU - James, Scott C.

AU - Kang, Yoon Mook

AU - Kim, Donghwan

AU - Yoon, Suk Goo

AU - Lee, Haeseok

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AB - Supersonic cold sprayed Cu and Ni particles were deposited on Si wafers for potential use as solar-cell front electrodes. Line-printed Ni-Cu electrodes were successfully fabricated with thicknesses between 30 and 50 μm. Choice of carrier gas (nitrogen and air) and effects of particle size and impact velocity on the electrical and mechanical properties of these Ni-Cu electrodes were quantified. The carrier gas had no discernable effect on electrode properties while increased particle sizes slightly decreased electrode specific resistivities. Impact velocity had the most pronounced influence on electrode electrical properties. Both the contact and specific resistivities decreased nearly linearly with increasing impact velocity. Adhesion strength was measured with a STAB-TEST instrument and found sufficient for all measured electrodes. The electrodes were further characterized using scanning electron microscopy, energy-dispersive X-ray spectroscopy, and auger electron spectroscopy.

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