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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 11, Iss. 10 — May. 19, 2003
  • pp: 1237–1242

Aging of porous silicon and the origin of blue shift

Tevhit Karacali, Bulent Cakmak, and Hasan Efeoglu  »View Author Affiliations


Optics Express, Vol. 11, Issue 10, pp. 1237-1242 (2003)
http://dx.doi.org/10.1364/OE.11.001237


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Abstract

Aging effects of porous silicon (PS) and the origin of blue shift are investigated. Photoluminescence (PL) measurements of the PS prepared with HF-EtOH solution showed a 210 meV blue shift after 1.5 months. It is found from deconvolution of the PL spectra that this shift is not fully related to the quantum confinement (QC) effect. For stable PS formation, a HF-EtOH-H2O2 solution is used. A stable luminescence at 2.01 eV with a Gaussian distribution is obtained when the samples are kept in H2O2 for 45 min after the anodization.

© 2002 Optical Society of America

OCIS Codes
(100.1830) Image processing : Deconvolution
(130.5990) Integrated optics : Semiconductors
(160.4670) Materials : Optical materials
(250.0250) Optoelectronics : Optoelectronics
(250.5230) Optoelectronics : Photoluminescence

ToC Category:
Research Papers

History
Original Manuscript: December 12, 2002
Revised Manuscript: May 12, 2003
Published: May 19, 2003

Citation
Tevhit Karacali, Bulent Cakmak, and Hasan Efeoglu, "Aging of porous silicon and the origin of blue shift," Opt. Express 11, 1237-1242 (2003)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-11-10-1237


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