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The fabrication of light-emitting devices from hot-pressed ZnSe powders

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Abstract

A hot-pressing process was developed to synthesize fine ZnSe powders into compacts with high bulk density. The hot-pressed ZnSe powder compacts after an annealing treatment in the Zn-Al alloy melt were readily processed into light-emitting devices based on a metal-semiconductor (M-S) device structure. The fabricated devices are found to emit light in the orange region of the visible spectrum and have a room temperature quantum efficiency of the order of 10−6 photons/electron in the reverse direction. The photoluminescence and electroluminescence characteristics of the hot-pressed ZnSe powder compacts are also found to be very similar to those observed in single crystal material.

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Author notes

  1. Norman M. P. Low

    Present address: Department of Energy Mines and Resources, Industrial Minerals Laboratory, CANMET, Ottawa, Canada

Authors and Affiliations

  1. Research and Development Division, Bowmar Canada Limited, Ottawa, Ontario, Canada

    Norman M. P. Low & David I. Kennedy

Authors
  1. Norman M. P. Low
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  2. David I. Kennedy
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Low, N.M.P., Kennedy, D.I. The fabrication of light-emitting devices from hot-pressed ZnSe powders. J Mater Sci 13, 72–76 (1978). https://doi.org/10.1007/BF00739275

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  • DOI: https://doi.org/10.1007/BF00739275

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