publication . Thesis

Conductivity, drift and diffusion in amorphous semiconductors

Clark, John David;
Open Access English
  • Country: United Kingdom
Abstract
Drift mobility experiments in amorphous semiconductors frequently show a particular pattern of non-Gaussian, anomalous carrier pulse propagation (ACPP) characterised by a power-law decay of transient current and super- linear dependence on the ratio length/electric field. Such behaviour is predicted whether the transport mechanism be hopping, trap-controlled hopping or trap-controlled band transport. A new theory of hopping ACPP is developed, based upon regarding the hopping as a random walk on a set of sites with both random positions and random energies. In contradistinction to earlier theories no artificial regular lattice is introduced. This new theory has t...
Subjects
free text keywords: QC
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