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A Mechanism of DC-AC Conversion in the Organic Thyristor

The charge ordered organic salt θ-(BEDT-TTF)(2)CsZn(SCN)(4) exhibits a giant nonlinear conduction at low temperatures. The voltage-current characteristics of this compound are similar to those of a thyristor device, after which we named it the organic thyristor. This material shows current oscillati...

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Detalles Bibliográficos
Autores principales: Suko, Tomohiro, Terasaki, Ichiro, Mori, Hatsumi, Mori, Takehiko
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International 2010
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5445875/
http://dx.doi.org/10.3390/ma3032027
Descripción
Sumario:The charge ordered organic salt θ-(BEDT-TTF)(2)CsZn(SCN)(4) exhibits a giant nonlinear conduction at low temperatures. The voltage-current characteristics of this compound are similar to those of a thyristor device, after which we named it the organic thyristor. This material shows current oscillation in the presense of dc voltage, which arises from a mechanism different from conventional oscillating circuits, because the oscillation appears in a sample that does not show negative derivative resistance. We have performed a standard circuit analysis, and show that the voltage-current curve is “blurred” in the high current region, and the oscillation occurs in the blurred region. This type of oscillation has never been reported, and a possible origin for this is suggested.