Abstract
A consequence of the discovery of electricity was the observation that metals are good conductors while nonmetals are poor conductors. The latter were called insulators. Metallic conductivity is typically between 106 and 104 (Ω cm)−1, while typical insulators have conductivities of less than 10−10 (Ω cm)−1. Some solids with conductivities between 104 and 10−10 (Ω cm)−1 are classified as semiconductors. However, substances such as alkali-halides whose conductivity is due to electrolytic decomposition shall be excluded. Also we restrict our discussion to chemically uniform, homogeneous substances and prefer those which can be obtained in monocrystalline form. Even then we have to distinguish between semiconductors and semimetals. This distinction is possible only as a result of thorough investigation of optical and electrical properties and how they are influenced by temperature, magnetic field, etc. Without giving further explanations at this stage, the statement is made that semiconductors have an energy gap while semimetals and metals have no such gap. However, very impure semiconductors show a more or less metallic behavior and with many substances, the art of purification by, e.g., zone refining [1.1, 2] is not so far advanced that a distinction can easily be made. The transition between semiconductors and insulators is even more gradual and depends on the ratio of the energy gap to the temperature of investigation. Very pure semiconductors become insulators when the temperature approaches the absolute zero.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
F. Rosenberger: Fundamentals of Crystal Growth I, Springer Ser. Solid-State Sci., Vol. 5 ( Springer, Berlin, Heidelberg 1981 )
A.A. Chernov (e.): Modern Crystallography III, Springer Ser. Solid-State Sci., Vol. 36 ( Springer, Berlin, Heidelberg 1984 )
C.K. Chiang, C.R. Fincher, Jr., Y.W. Park, A.J. Heeger, H. Shirakawa, E.J.
Louis, S.C. Gau, A.G. MacDiarmid: Phys. Rev. Lett. 39, 1098 (1977)
R.B. Adler, A.C. Smith, R.L. Longini: Introduction to Semiconductor Physics
Wiley, New York 1964)
J.M. Meese: Neutron Transmutation Doping in Semiconductors ( Plenum, New York 1979 )
G. Bertolini, A. Coche: Semiconductor Detectors ( North-Holland, Amsterdam 1968 )
G. Dearnally, D.C. Northrop: Semiconductor Counters for Nuclear Radiations (Spon, London 1966 )
G. Mandel: Phys. Rev. 134, A1073 (1964)
Author information
Authors and Affiliations
Rights and permissions
Copyright information
© 1989 Springer-Verlag Berlin Heidelberg
About this chapter
Cite this chapter
Seeger, K. (1989). Elementary Properties of Semiconductors. In: Semiconductor Physics. Springer Series in Solid-State Sciences, vol 40. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-02576-5_1
Download citation
DOI: https://doi.org/10.1007/978-3-662-02576-5_1
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-19410-1
Online ISBN: 978-3-662-02576-5
eBook Packages: Springer Book Archive