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Visible electroluminescence of porous silicon devices with a solid state contact


Iyer, S.S.; Collins, R.T.; Canham, L.T. ; Materials Research Society -MRS-:
Light emission from silicon
Pittsburgh, Pa.: MRS, 1992 (Materials Research Society symposia proceedings 256)
ISBN: 1-558-99150-6
Materials Research Society (Fall Meeting) <1991, Boston/Mass.>
Fraunhofer IFT; 2000 dem IZM eingegliedert
luminescence; porous silicon

The photoluminescence and electroluminescence of light emitting porous silicon (LEPOS) is described. The porous silicon is made by anodic dissolution of silicon in HF with an applied electrical current and illumination with visible light. Photoluminescence is observed using ultraviolet light, visible electroluminescence is achieved by applying a voltage to a solid state contact on top of the porous layer. The luminescence, the structure and the composition of the LEPOS are studied.