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Light emitting device

  • US 4,920,387 A
  • Filed: 09/13/1989
  • Issued: 04/24/1990
  • Est. Priority Date: 08/26/1985
  • Status: Expired due to Term
First Claim
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1. A light emitting device comprising:

  • a luminescent portion having at least two laminated layers comprising non-single crystalline silicon containing hydrogen atoms and having a homo-junction; and

    at least a pair of electrodes connected electrically to said luminescent portion, and wherein each non-single crystalline silicon layer has an optical band gap of at least 2.0 eV and a localized level density at mid-gap no greater than 1016 cm-3.eV-1.

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