Journal of Materials Science

, Volume 4, Issue 11, pp 962–973 | Cite as

An investigation of the preparation and properties of some IIIa-Vb compounds

  • S. E. R. Hiscocks
  • J. B. Mullin
Papers

Abstract

Previous work bearing on the techniques of preparation of the IIIa-Vb compounds is reviewed and the preparative problems systematically analysed. This study has resulted in the development of a simple low temperature method for preparing these compounds from their component elements with the minimum of contamination. It has been found that these very high melting point compounds can be sublimed and that sublimation techniques offer a convenient route for their purification and fabrication in thin film form.

Evidence that some of the IIIa-Vb compounds are semiconductors has been obtained from studies of the optical properties of thin films of PrAs, NdAs, SmAs, GdAs, DyAs, TmAs, YbAs, PrSb, SmSb, YbSb and SmP; their respective optical energy gaps were determined as ∼1, 1.04, 1.03, 0.63, 1, 1.18, 1.02, 0.66, 0.59, 1, and 1.09 eV respectively. A comparison is made between these measured values and those predicted by N. Sclar [1].

Keywords

Polymer Thin Film Purification Melting Point Optical Property 

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Copyright information

© Chapman and Hall Ltd. 1969

Authors and Affiliations

  • S. E. R. Hiscocks
    • 1
  • J. B. Mullin
    • 1
  1. 1.Royal Radar EstablishmentGt MalvernUK

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