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Optical Materials Express

Optical Materials Express

  • Editor: David J. Hagan
  • Vol. 1, Iss. 7 — Nov. 1, 2011
  • pp: 1210–1215

Electroluminescence of out-of-plane silicon nanowire/silver oxide/silver nanodendrite heterostructures

W. Chuck Hsu, Jun-Yi Chyan, Yen-Sheng Lu, and J. Andrew Yeh  »View Author Affiliations

Optical Materials Express, Vol. 1, Issue 7, pp. 1210-1215 (2011)

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The silicon-based heterostructures composed of silicon nanowire/silver oxide/silver nanodendrite are first demonstrated as functional light emitting sources after electro-activation. The high fill-factor nanoscale out-of-plane heterostructures are fabricated into silicon substrate using low-cost silver nanoparticles assisted wet chemical etching. The emitted light spectrum spanning a visible–NIR range of 400-850 nm is analyzed to excite three predominant intensity peaks with photon energies of 1.87, 2.05 and 2.27 eV under forward biases of 20-50 V, corresponding to the color of dark red, yellow and green. The heterostructure device proposed paves a way to eliminate the use of relatively expensive direct band gap materials for the potential optoelectronic applications, such as optical interconnections and displays.

© 2011 OSA

OCIS Codes
(230.0230) Optical devices : Optical devices
(250.0250) Optoelectronics : Optoelectronics

ToC Category:

Original Manuscript: September 9, 2011
Revised Manuscript: October 3, 2011
Manuscript Accepted: October 3, 2011
Published: October 11, 2011

W. Chuck Hsu, Jun-Yi Chyan, Yen-Sheng Lu, and J. Andrew Yeh, "Electroluminescence of out-of-plane silicon nanowire/silver oxide/silver nanodendrite heterostructures," Opt. Mater. Express 1, 1210-1215 (2011)

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