Abstract
The polarization photosensitivity of a heterocontact of porous and single-crystal silicon is experimentally investigated. A maximum in the photosensitivity is observed at ∼1 mA/W at energies in the range 1.2–2.3 eV, when linearly polarized light is obliquely incident on the surface of the porous-silicon layer. The photopleochroism of these heterostructures depends on the angle of incidence θ, varies roughly as ∼θ2, and reaches the maximum value of ∼32% at θ⋍80°. Oscillations due to interference of natural and linearly polarized light in the porous-silicon layers are observed in the photocurrent and the photopleochroism of these structures. Heterostructures consisting of a layer of porous silicon on a silicon single crystal can find application as photoconverters of natural and linearly polarized light.
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Fiz. Tekh. Poluprovodn. 31, 309–312 (February 1997)
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Rud’, V.Y., Rud’, Y.V. Photoelectric properties of porous and single-crystal silicon heterocontacts. Semiconductors 31, 197–199 (1997). https://doi.org/10.1134/1.1187107
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DOI: https://doi.org/10.1134/1.1187107