Edge dislocations — emission centres in deformed anthracene single crystals

Luminescence spectra (4.2 K) and etch patterns of thermally deformed anthracene single crystals are investigated. It is shown that the D 1 band with Δ E = 235 cm −1 (where Δ E is the energy gap between the bottom of the exciton band and the D 1 band) is due to the edge dislocations with the emergenc...

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Bibliographic Details
Published in:Chemical physics letters 1976-09, Vol.42 (2), p.339-341
Main Authors: Lisovenko, V.A., Shpak, M.T., Antoniuk, V.G.
Format: Article
Language:English
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Summary:Luminescence spectra (4.2 K) and etch patterns of thermally deformed anthracene single crystals are investigated. It is shown that the D 1 band with Δ E = 235 cm −1 (where Δ E is the energy gap between the bottom of the exciton band and the D 1 band) is due to the edge dislocations with the emergences at the (001) face running in the [010] direction whereas the D 2 band with Δ E = 275 cm −1 due to those with the emergences along the [100] direction. The former are assumed to be (010)[100]-type dislocations whereas the latter of (100)[010] type.
ISSN:0009-2614
1873-4448
DOI:10.1016/0009-2614(76)80378-8