A perspective on the manipulation of orbital angular momentum states in nonlinear optics

作者：Kang, S. S.; Yang, J.; Yang, B. B.; Zhan, X. J.; Zhang, Y. M.; Dai, Y. Q.; Song, D. P.^*

来源：Applied Physics Letters, 2023, 122(4): 042902.

DOI：10.1063/5.0135242

• ULTRAHIGH-ENERGY STORAGE
• FERROELECTRIC PROPERTIES
• DENSITY
• FILMS
• PERFORMANCE
• POLYMER

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/cm(3) and an efficiency of 82.5% using the multi-element-doped composition. This work provides guidance for preparing high-energy-storage films.

• 单位
  安阳工学院; 清华大学; 新型陶瓷与精细工艺国家重点实验室; 合肥师范学院; 江苏科技大学