Silicon nanowire array photoelectrochemical cells

Adrian P. Goodey, Sarah M. Eichfeld, Kok Keong Lew, Joan Marie Redwing, Thomas E. Mallouk

Research output: Contribution to journalArticle

188 Citations (Scopus)

Abstract

Silicon nanowire arrays were grown by vapor-liquid-solid growth from SiH4 vapor at 500 °C, and tested as photocathodes in [Ru(bpy)3]2+ (bpy = 2,2′-bipyridyl)/acetonitrile solutions. Si nanowires were grown in anodic aluminum oxide membranes by first electroplating 50 μm long Co wires capped with 250 nm gold segments in the pores and then reacting with SiH4. The resulting Si nanowires protruded 10-15 μm beyond the top surface of the membrane but were degeneratively doped, most likely by Al from the membrane. Nanowires grown in the same manner on Si(111)/Au substrates could be controllably doped p-type by addition of trimethylboron. These p-Si nanowire arrays gave a photovoltage of 220 mV in [Ru(bpy)3]2+ solution when illuminated by white light.

Original languageEnglish (US)
Pages (from-to)12344-12345
Number of pages2
JournalJournal of the American Chemical Society
Volume129
Issue number41
DOIs
StatePublished - Oct 17 2007

Fingerprint

Nanowires
Photoelectrochemical cells
Silicon
Membranes
Vapors
Electroplating
2,2'-Dipyridyl
Photocathodes
Aluminum Oxide
Acetonitrile
Gold
Wire
Aluminum
Light
Oxides
Liquids
Substrates
Growth

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Goodey, A. P., Eichfeld, S. M., Lew, K. K., Redwing, J. M., & Mallouk, T. E. (2007). Silicon nanowire array photoelectrochemical cells. Journal of the American Chemical Society, 129(41), 12344-12345. https://doi.org/10.1021/ja073125d
Goodey, Adrian P. ; Eichfeld, Sarah M. ; Lew, Kok Keong ; Redwing, Joan Marie ; Mallouk, Thomas E. / Silicon nanowire array photoelectrochemical cells. In: Journal of the American Chemical Society. 2007 ; Vol. 129, No. 41. pp. 12344-12345.
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Goodey, AP, Eichfeld, SM, Lew, KK, Redwing, JM & Mallouk, TE 2007, 'Silicon nanowire array photoelectrochemical cells', Journal of the American Chemical Society, vol. 129, no. 41, pp. 12344-12345. https://doi.org/10.1021/ja073125d

Silicon nanowire array photoelectrochemical cells. / Goodey, Adrian P.; Eichfeld, Sarah M.; Lew, Kok Keong; Redwing, Joan Marie; Mallouk, Thomas E.

In: Journal of the American Chemical Society, Vol. 129, No. 41, 17.10.2007, p. 12344-12345.

Research output: Contribution to journalArticle

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