Major Contributions
 

1. Ultrathin freestanding ferroelectric BiFeO₃ single-nanopore membranes (down to 30 nm) exhibit ionic current rectification driven entirely by spontaneous ferroelectric polarization, without requiring geometric asymmetry or surface functionalization.

2. The nanopores display reversible polarization switching with hysteretic ion current rectification in response to external pH stimuli, enabling biomimetic functions analogous to biological ion channels with additional pH tunability.

3. Significant osmotic power generation is demonstrated through directional ion transport-driven current amplification, establishing ultrathin ferroelectric oxide nanopore membranes for ionic circuit applications and osmotic energy conversion.

主要貢獻
 

1. 最薄至 30 nm 的自支撐鐵電 BiFeO₃ 單奈米孔薄膜完全藉由自發鐵電極化實現離子電流整流，無需幾何不對稱或表面功能化。

2. 奈米孔對外部 pH 刺激表現出可逆極化切換與遲滯離子電流整流，實現類比生物離子通道的仿生功能，並具有額外的 pH 可調性。

3. 通過定向離子傳輸驅動的電流放大效應展現顯著的滲透能量生成，確立超薄鐵電氧化物奈米孔薄膜在離子電路應用與滲透能轉換中的地位。