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Voltage switchable dielectric material having conductive or semi-conductive organic material

An organic material, voltage level technology, applied in the direction of conductive materials dispersed in non-conductive inorganic materials, etc., can solve the problems of susceptibility to other surface damage, high thermal expansion, lack of adhesive strength, etc.

Inactive Publication Date: 2012-11-28
SHOCKING TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Typical traditional VSD materials are brittle, prone to scratching or other surface damage, lack adhesive strength, and have high thermal expansion

Method used

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  • Voltage switchable dielectric material having conductive or semi-conductive organic material
  • Voltage switchable dielectric material having conductive or semi-conductive organic material
  • Voltage switchable dielectric material having conductive or semi-conductive organic material

Examples

Experimental program
Comparison scheme
Effect test

example 3

[0152] Example 3 also shows a VSD composition lacking organic conductive / semiconductive material, while Example 4 shows the effect of including carbon nanotubes into the mixture. As shown in the table, a sharp decrease in trigger voltage and clamp voltage is shown. Regarding Examples 3 and 4, both compositions show compositions with reasonable mechanical properties as well as off-state resistivity and current carrying capacity characteristics (these are not mentioned in the graph). However, the clamping voltage and triggering voltage values ​​of Example 3 illustrate that compositions that do not contain carbon nanotubes are difficult to turn on and maintain the on state. Unusually high trigger and clamp voltages thus reduce the usefulness of the composition.

example 5

[0153] Examples 5 and 6 illustrate the use of organic semiconductors with carbon nanotubes. In Example 5, the organic semiconductor was imidazole dinitrile. In Example 6, the organic semiconductor was methylaminoanthracene.

[0154] Examples 7-10 illustrate various combinations of VSD materials. Example 8 shows the use of an organic semiconductor (hexathiophene) and carbon nanotubes. Example 10 illustrates VSD compositions of various types of carbon nanotubes with different VSD compositions, showing various effects resulting from the use of conductive or semiconductive organic materials, according to embodiments of the present invention.

[0155] Figure 3C-3E The performance graphs shown in assume a pulsed voltage input. Performance graphs can be used as a reference for the examples in the table below.

[0156]

[0157] table 3

[0158] Figure 3C is a graph showing the performance of a VSD material having a larger concentration of carbon nanotubes in the binder of...

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Abstract

One or more embodiments provide for a composition that includes (i) organic material that is conductive or semi-conductive, and (ii) conductor and / or semiconductor particles other than the organic material. The organic material and the conductor and / or semiconductor particles are combined to provide the composition with a characteristic of being (i) dielectric in absence of a voltage that exceedsa characteristic voltage level, and (ii) conductive with application of the voltage exceeding the characteristic voltage level.

Description

[0001] related application [0002] This application claims priority to Provisional U.S. Patent Application No. 60 / 820,786, filed July 29, 2006, entitled "Voltage Switchable Dielectric Material With Reduced Metal Loading" , the above application is hereby incorporated by reference in its entirety. [0003] This application also requires the title "Voltage Switchable Device and Dielectric Material With High Current Carrying Capacity and a Process for Electroplating the Same" filed on September 24, 2006 Voltage Switchable Devices and Dielectric Materials)" Provisional US Patent Application No. 60 / 826,746, which is hereby incorporated by reference in its entirety. [0004] This application also claims priority to Provisional U.S. Patent Application No. 60 / 949,179, filed July 11, 2007, entitled "Binders for VoltageSwitchable Dielectric Materials," The aforementioned application is hereby incorporated by reference in its entirety. [0005] This application is a continuation-in-par...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B1/24
Inventor L·科索斯基R·弗莱明
Owner SHOCKING TECH INC
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