Photoconductivity, Conduction Electron Energies, and Excitons in Simple Fluids

  • I. T. Steinberger
Part of the NATO ASI Series book series (NSSB, volume 193)


The objective of this paper is to present nonpolar fluids having very simple electronic properties. It will be shown that in liquids of the heavier rare gases electron energies and electron transport are very similar to those in the corresponding crystalline solids, so that for these liquids even the nomenclature characterizing electronic states in crystals has a distinct and well-defined meaning. This will be shown with respect to the band gap, conduction band minimum, and excitons. Remarkably, for the dense liquids of argon, krypton, and xenon there is no need to invoke concepts typical to amorphous semiconductors, like different optical and mobility gaps. Thus, these liquids may serve as reference models for more involved nonpolar liquids, e.g., of hydrocarbons. Moreover, since the density of a fluid can be easily varied, studying the evolution of the electronic properties of fluid argon, krypton, and xenon with the increase of the density from that of a dilute gas up to the triple-point liquid can, in fact, serve to define the conditions for the coming into existence of “crystal-like” electronic behavior.


Electron Mobility Atomic Line Conduction Band Minimum Liquid Argon Amorphous Semiconductor 
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Copyright information

© Plenum Press, New York 1988

Authors and Affiliations

  • I. T. Steinberger
    • 1
  1. 1.Racah Institute of PhysicsThe Hebrew UniversityJerusalemIsrael

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