When it comes to increasing electric storage efficiency and electric breakdown strength -- the ability of an electrical system to operate at higher voltage and temperatures with great efficiency -- increasing one traditionally has led to a decrease in the other. Penn State researchers, led by Qiming Zhang, distinguished professor of electrical engineering, recently developed a scalable method that relies on engineered materials to increase both properties.
The researchers altered a dielectric capacitor, a device that stores and regulates energy and is commonly used in electronics and electric systems. Using dopants -- small, engineered materials also called computer science vs engineering metamaterials -- the researchers altered the dielectric capacitor to increase storage capacity while also increasing electric charge efficiency, meaning the capacitor can withstand greater voltage with very little energy loss at temperatures higher than 300 degrees Fahrenheit.
While other researchers have been able to do this for dielectric capacitors, the methods have been too expensive to scale for use with real products. Zhang and the other Penn State researchers reported their results in a recent issue of Science Advances.
The researchers altered a dielectric capacitor, a device that stores and regulates energy and is commonly used in electronics and electric systems. Using dopants -- small, engineered materials also called computer science vs engineering metamaterials -- the researchers altered the dielectric capacitor to increase storage capacity while also increasing electric charge efficiency, meaning the capacitor can withstand greater voltage with very little energy loss at temperatures higher than 300 degrees Fahrenheit.
While other researchers have been able to do this for dielectric capacitors, the methods have been too expensive to scale for use with real products. Zhang and the other Penn State researchers reported their results in a recent issue of Science Advances.
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