Prospects for light-emitting diodes made of porous silicon from the blue to beyond 1.5 p.m

P. M. Fauchet, C. Peng, L. Tsybeskov, Ju V. Vandyshev, A. Dubois, L. McLoud, S. P. Duttagupta, J. M. Rehm, G. L. McLendon, E. Ettedgui, Y. Gao, F. Seiferth, S. K. Kurinec, A. Raisanen, T. E. Orlowski, L. J. Brilison, G. E. Carver

Research output: Contribution to journalConference articlepeer-review

6 Scopus citations


Since the discovery 1990 that porous silicon emits bright photoluminescence in the red part of thespectrum, light-emitting devices (LEDs) made of light-emitting porous silicon (LEPSi) have beendemonstrated, which could be used for optical displays, sensors or optical interconnects. In this paper, wediscuss our work on the optical properties of LEPSi and progress towards commercial devices. LEPSiphotoluminesces not only in the red-orange, but also throughout the entire visible spectrum, from the blueto the deep red, and in the infrared, well past 1.5 jim. The intense blue and infrared emissions are possibleonly after treatments such as high temperature oxidation or low temperature vacuum annealing. These newbands have quite different properties from the usual red-orange band and their possible origins arediscussed. Different LED structures are then presented and compared and the prospects for commercialdevices are examined.

Original languageEnglish (US)
Pages (from-to)34-50
Number of pages17
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Jun 2 1994
Externally publishedYes
EventAdvanced Photonics Materials for Information Technology 1994 - Los Angeles, United States
Duration: Jan 23 1994Jan 29 1994

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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