Zhengyang Kong
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Zhengyang Kong has a total of 4 co-authors. Here are the top co-authors by number of shared publications:
- Kun Han
Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei, China
1 shared publication - Liqiang Xu
Institutes of Physical Science and Information Technology and Leibniz International Joint Research Center of Materials Sciences of Anhui Province Anhui University Hefei China
1 shared publication - Yufan Guo
Stony Brook Institute at Anhui University, Anhui University 2 , Hefei 230039
1 shared publication - Zhen Huang
Anhui University
1 shared publication
Latest Publications
- 6 October 2025
- Published by AIP Publishing in Applied Physics Letters
- Vol. 127 (14)
Tailoring energy storage performance of BaTiO3–CeO2 lead-free films via nanostructure design and crystalline orientation
Relaxor ferroelectrics are promising for high-performance energy storage applications, particularly in miniaturized electronic devices and power systems. Herein, we investigate the influence of CeO2 doping on the structural and polarization behavior of (1 − x)BaTiO3−xCeO2 [(1 − x)BT−xC, 0.0 ≤ x ≤ 0.5] films. Our results show that the incorporation of CeO2 into BaTiO3 matrix induces chemical and structural heterogeneity, which effectively suppresses hysteresis, achieving a large energy storage density Ue of ∼37.6 J/cm3 and a high efficiency η of ∼80% for 0.7BT-0.3C films grown on Nb-SrTiO3 (001) substrates. The orientation control further refined the energy storage properties, with 0.7BT-0.3C films grown on (110)- and (111)-oriented Nb-SrTiO3 substrates exhibiting improved Ue of 44.8 and 46.8 J/cm3. The frequency and thermal stability analyses revealed that the nanostructured BaTiO3-based films maintained stable energy storage performance across a wide frequency range from 20 Hz to 10 kHz, and temperature range from 25 to 160 °C. These findings suggest the potential of nanostructure engineering and orientation control in improving the energy storage performance of BaTiO3-based films for advanced applications.
- 6 October 2025
- Published by AIP Publishing in Applied Physics Letters
- Vol. 127 (14)
Tailoring energy storage performance of BaTiO3–CeO2 lead-free films via nanostructure design and crystalline orientation
Relaxor ferroelectrics are promising for high-performance energy storage applications, particularly in miniaturized electronic devices and power systems. Herein, we investigate the influence of CeO2 doping on the structural and polarization behavior of (1 − x)BaTiO3−xCeO2 [(1 − x)BT−xC, 0.0 ≤ x ≤ 0.5] films. Our results show that the incorporation of CeO2 into BaTiO3 matrix induces chemical and structural heterogeneity, which effectively suppresses hysteresis, achieving a large energy storage density Ue of ∼37.6 J/cm3 and a high efficiency η of ∼80% for 0.7BT-0.3C films grown on Nb-SrTiO3 (001) substrates. The orientation control further refined the energy storage properties, with 0.7BT-0.3C films grown on (110)- and (111)-oriented Nb-SrTiO3 substrates exhibiting improved Ue of 44.8 and 46.8 J/cm3. The frequency and thermal stability analyses revealed that the nanostructured BaTiO3-based films maintained stable energy storage performance across a wide frequency range from 20 Hz to 10 kHz, and temperature range from 25 to 160 °C. These findings suggest the potential of nanostructure engineering and orientation control in improving the energy storage performance of BaTiO3-based films for advanced applications.