Visible Electroluminescence from Pn Junction Type μc-Sic/ Porous Si / c-Si Structures

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<jats:title>ABSTRACT</jats:title><jats:p>We have fabricated two kinds of n-type microcrystalline silicon carbon (μc-SiC) / porous silicon (PS) / p-type crystalline silicon (c-Si) pn junctions and demonstrated a visible light emission from them. We have observed three types of visible light emission; an uniform red light emission at a forward current above 12mA/cm<jats:sup>2</jats:sup> for the pn junction using a 0.2–0.4 Qcm c-Si substrate, and a very weak white light emission at a forward current of about 90 mA/mm<jats:sup>2</jats:sup> and a strong orange-red light emission at a forward current from 200 to 619 mA/mm<jats:sup>2</jats:sup>for the pn junction using a 3.5–4.5 Ωcm c-Si substrate.</jats:p>

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  • MRS Proceedings

    MRS Proceedings 283 1992-01-01

    Springer Science and Business Media LLC

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