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An organic thyristor.

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Title: An organic thyristor.
Authors: Sawano, F., Terasaki, I., Mori, H., Mori, T., Watanabe, M., Ikeda, N., Nogami, Y., Noda, Y.
Source: Nature. 9/22/2005, Vol. 437 Issue 7058, p522-524. 3p. 1 Diagram, 8 Graphs.
Subjects: Thyristors, Electric inverters, Electronic equipment, Electric current rectifiers, Electric current converters, Electronics
Abstract: Thyristors are a class of nonlinear electronic device that exhibit bistable resistance—that is, they can be switched between two different conductance states. Thyristors are widely used as inverters (direct to alternating current converters) and for the smooth control of power in a variety of applications such as motors and refrigerators. Materials and structures that exhibit nonlinear resistance of this sort are not only useful for practical applications: they also provide systems for exploring fundamental aspects of solid-state and statistical physics. Here we report the discovery of a giant nonlinear resistance effect in the conducting organic salt \[thetas]-(BEDT-TTF)2CsCo(SCN)4, the voltage-current characteristics of which are essentially the same as those of a conventional thyristor. This intrinsic organic thyristor works as an inverter, generating an alternating current when a static direct-current voltage is applied. Whereas conventional thyristors consist of a series of diodes (their nonlinearity comes from interface effects at the p-n junctions), the present salt exhibits giant nonlinear resistance as a bulk phenomenon. We attribute the origin of this effect to the current-induced melting of insulating charge-order domains, an intrinsically non-equilibrium phenomenon in the sense that ordered domains are melted by a steady flow. [ABSTRACT FROM AUTHOR]
Copyright of Nature is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: <searchLink fieldCode="AR" term="%22Sawano%2C+F%2E%22">Sawano, F.</searchLink><br /><searchLink fieldCode="AR" term="%22Terasaki%2C+I%2E%22">Terasaki, I.</searchLink><br /><searchLink fieldCode="AR" term="%22Mori%2C+H%2E%22">Mori, H.</searchLink><br /><searchLink fieldCode="AR" term="%22Mori%2C+T%2E%22">Mori, T.</searchLink><br /><searchLink fieldCode="AR" term="%22Watanabe%2C+M%2E%22">Watanabe, M.</searchLink><br /><searchLink fieldCode="AR" term="%22Ikeda%2C+N%2E%22">Ikeda, N.</searchLink><br /><searchLink fieldCode="AR" term="%22Nogami%2C+Y%2E%22">Nogami, Y.</searchLink><br /><searchLink fieldCode="AR" term="%22Noda%2C+Y%2E%22">Noda, Y.</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Nature%22">Nature</searchLink>. 9/22/2005, Vol. 437 Issue 7058, p522-524. 3p. 1 Diagram, 8 Graphs.
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  Data: <searchLink fieldCode="DE" term="%22Thyristors%22">Thyristors</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+inverters%22">Electric inverters</searchLink><br /><searchLink fieldCode="DE" term="%22Electronic+equipment%22">Electronic equipment</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+current+rectifiers%22">Electric current rectifiers</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+current+converters%22">Electric current converters</searchLink><br /><searchLink fieldCode="DE" term="%22Electronics%22">Electronics</searchLink>
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  Data: Thyristors are a class of nonlinear electronic device that exhibit bistable resistance—that is, they can be switched between two different conductance states. Thyristors are widely used as inverters (direct to alternating current converters) and for the smooth control of power in a variety of applications such as motors and refrigerators. Materials and structures that exhibit nonlinear resistance of this sort are not only useful for practical applications: they also provide systems for exploring fundamental aspects of solid-state and statistical physics. Here we report the discovery of a giant nonlinear resistance effect in the conducting organic salt \[thetas]-(BEDT-TTF)2CsCo(SCN)4, the voltage-current characteristics of which are essentially the same as those of a conventional thyristor. This intrinsic organic thyristor works as an inverter, generating an alternating current when a static direct-current voltage is applied. Whereas conventional thyristors consist of a series of diodes (their nonlinearity comes from interface effects at the p-n junctions), the present salt exhibits giant nonlinear resistance as a bulk phenomenon. We attribute the origin of this effect to the current-induced melting of insulating charge-order domains, an intrinsically non-equilibrium phenomenon in the sense that ordered domains are melted by a steady flow. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Nature is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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