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Published August 1, 1964 | public
Journal Article

Energy gap in sulphur

Mead, C. A. ORCID icon

Abstract

An excellent review of the electrical and optical properties of α-sulphur has been given by Moss. It is concluded that the conductivity is intrinsic and that the energy gap is approximately 2.5 eV, corresponding to a thermal activation energy of 1.3 eV. In this communication we present evidence that the energy gap in α-sulphur is 3.8 eV, both electrons and hole being mobile, and that the lower values previously reported are due to excitation from defect states within the crystal.

Additional Information

Copyright © 1964 Published by Elsevier B.V. Received 7 July 1964. The author would like to thank H. M. Simpson for the fabrication of the samples. This work was supported in part by the Office of Naval Research and the International Telephone and Telegraph Company.

Additional details

Created:
August 19, 2023
Modified:
March 5, 2024