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Current induced light emission from a porous silicon device

: Steiner, P.; Kozlowski, F.; Lang, W.; Richter, A.

IEEE Electron Device Letters 12 (1991), Nr.12, S.691-692
ISSN: 0741-3106
ISSN: 0193-8576
Fraunhofer IFT; 2000 dem IZM eingegliedert
electroluminescence; nanostructure; porous silicon

Experiments with light-emitting porous silicon (LEPOS) are described. The porous silicon was made from n-type silicon by anodization In an electrolytical cell by HF with an applied electrical current. Visible light emission was achieved by irradiation with ultraviolet light. Visible electroluminescence (EL) was achieved by applying a dc or ac voltage to a solid-state contact on top of the porous layer. First optical spectra of both experiments are shown.