New Results on Electroluminescence from Porous Silicon

Abstract

First results on light emitting diodes in porous silicon were reported in 1991. They showed a quantum efficiency of 10−7 to 10−5 and an orange spectrum. Over the last year some progress was achieved:

  1. By applying UV–light during the etching blue and green light emitting diodes in porous silicon are fabricated.

  2. When a p/n junction is realized within the porous region, a quantum efficiency of 10−4 is obtained.

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Acknowledgment

We thank Prof. I. Ruge for his support, A. Richter for discussions, M. Sauter for measurements, H. Kranz for ion implantation and G. Gleske for the ITO contacts.

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Steiner, P., Kozlowski, F., Sandmaier, H. et al. New Results on Electroluminescence from Porous Silicon. MRS Online Proceedings Library 283, 343–351 (1992). https://doi.org/10.1557/PROC-283-343

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