Pyroelectric luminescence via internal Poole-Frenkel effect
Autor(en): | Ruediger, A Schirmer, OF Kadashchuk, AK Skryshevskii, YA |
Stichwörter: | MODEL; Physics; Physics, Multidisciplinary | Erscheinungsdatum: | 2002 | Herausgeber: | E D P SCIENCES | Journal: | EUROPHYSICS LETTERS | Volumen: | 57 | Ausgabe: | 4 | Startseite: | 592 | Seitenende: | 596 | Zusammenfassung: | Pyroelectric luminescence is a universal property of pyroelectric materials under changing temperature. In all compounds studied, inorganic and organic, it has two possible manifestations: Short-emission bursts caused by discharge of the pyroelectric field through the surrounding atmosphere and a smooth luminescence slowly varying with temperature. This latter emission, characteristic for the specific material, still waits for an explanation. With Sn2P2S6 as a sample pyroelectric we show that this luminescence arises from a release of trapped charge carriers, triggered by the pyrolectric field via the Poole-Frenkel effect. |
ISSN: | 02955075 | DOI: | 10.1209/epl/i2002-00502-1 |
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geprüft am 23.05.2024