Enhanced electrostatic energy storage through a multi-element doping design
| Autor: | S. S. Kang, J. Yang, B. B. Yang, X. J. Zhan, Y. M. Zhang, Y. Q. Dai, D. P. Song |
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| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Applied Physics Letters. 122:042902 |
| ISSN: | 1077-3118 0003-6951 |
| DOI: | 10.1063/5.0135242 |
| Popis: | Element doping is a common and efficient method that can be used to substantially enhance dielectric energy storage performance. Despite continued efforts and progress in this field, investigations of the different effects of single- and multi-element doping on energy storage properties are lacking. In this work, we study the dependence of microstructures and energy storage properties on element doping using a BaBi4Ti4O15 material system. Our results reveal that an amorphous phase appears and the grain size decreases with an increasing number of doping elements. Such a scenario is conducive to improving the breakdown field strength and suppressing polarization-switching hysteresis. Therefore, we achieve an ultrahigh energy storage density of 76 J/cm3 and an efficiency of 82.5% using the multi-element-doped composition. This work provides guidance for preparing high-energy-storage films. |
| Databáze: | OpenAIRE |
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