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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 5, Iss. S1 — May. 31, 2007
  • pp: S250–S253

Ordered silicon nanostructures for silicon-based photonic devices

Anton Fojtik, Jan Valenta, Ivan Pelant, Milan Kalal, and Pavel Fiala  »View Author Affiliations


Chinese Optics Letters, Vol. 5, Issue S1, pp. S250-S253 (2007)


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Abstract

Light-emitting silicon nanocrystals are prepared by the pyrolysis of silane and subsequent controlled size-reduction by chemical etching. These nanocrystals show luminescence tunable through the full visible spectral region. The luminescence rate increases by two orders of magnitude when shortening wavelength from red to blue side of the spectrum, which is interpreted as relaxation of the indirect band-gap energy structure. In addition we demonstrate a novel method to prepare regular arrays of nanospikes via deposition of suitable materials through the mask formed by a self-assembled monolayer of polystyrene beads. These structures could be used to improve light-emitting silicon devices and enable advancement on the way to true integrated silicon laser.

© 2007 Chinese Optics Letters

OCIS Codes
(140.5960) Lasers and laser optics : Semiconductor lasers
(250.5230) Optoelectronics : Photoluminescence
(250.5300) Optoelectronics : Photonic integrated circuits

Citation
Anton Fojtik, Jan Valenta, Ivan Pelant, Milan Kalal, and Pavel Fiala, "Ordered silicon nanostructures for silicon-based photonic devices," Chin. Opt. Lett. 5, S250-S253 (2007)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-5-S1-S250


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