Bulk Photoconductivity of p -Chloranil Crystals
1965; American Institute of Physics; Volume: 43; Issue: 3 Linguagem: Inglês
10.1063/1.1696841
ISSN1520-9032
AutoresP. J. Reucroft, O. N. Rudyj, R. E. Salomon, M. M. Labes,
Tópico(s)Spectroscopy and Quantum Chemical Studies
ResumoThe bulk-photoconductivity properties of substituted p-benzoquinone crystals with particular reference to p-chloranil (tetrachloro-p-benzoquinone), are presented and discussed. While photocurrents excited by light in the fundamental absorption region of p-chloranil can probably be considered in terms of exciton processes involving the crystal absorption spectrum, ``anomalous'' photocurrent regions occurring below the main absorption edge can be more reasonably discussed in terms of impurity-sensitized photocarrier production. A possible mechanism for this sensitization is presented.
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