Pang Fengyi, Zhao Pin, Lee Hyeon Yeong, Kim Dae-Jin, Meng Xiangchun, Cho Yong Soo, Kim Sang-Woo
Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea.
Division of Advanced Materials, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, P. R. China.
Adv Sci (Weinh). 2025 Mar 12:e2411422. doi: 10.1002/advs.202411422.
The emergence of two-dimensional (2D) materials has catalyzed significant advancements in the fields of piezotronics and piezo-phototronics, owing to their exceptional mechanical, electronic, and optical properties. This review provides a comprehensive examination of key 2D piezoelectric and piezo-phototronic materials, including transition metal dichalcogenides, hexagonal boron nitride (h-BN), and phosphorene, with an emphasis on their unique advantages and recent research progress. The underlying principles of piezotronics and piezo-phototronics in 2D materials is discussed, focusing on the fundamental mechanisms which enable these phenomena. Additionally, it is analyzed factors affecting piezoelectric and piezo-photoelectric properties, with a particular focus on the intrinsic piezoelectricity of 2D materials and the enhancement of out-of-plane polarization through various modulation techniques and materials engineering approaches. The potential applications of these materials are explored from piezoelectric nanogenerators to piezo-phototronic devices and healthcare. This review addresses future challenges and opportunities, highlighting the transformative impact of 2D materials on the development of next-generation electronic, optoelectronic, and biomedical devices.
二维（2D）材料的出现，因其卓越的机械、电子和光学性能，推动了压电器件和压电光电器件领域的重大进展。本文综述全面考察了关键的二维压电和压电光电子材料，包括过渡金属二硫属化物、六方氮化硼（h-BN）和磷烯，重点阐述了它们的独特优势和近期研究进展。讨论了二维材料中压电器件和压电光电器件的基本原理，着重于实现这些现象的基本机制。此外，分析了影响压电和压电光电性能的因素，特别关注二维材料的本征压电性以及通过各种调制技术和材料工程方法增强面外极化。探讨了这些材料从压电纳米发电机到压电光电器件以及医疗保健等方面的潜在应用。本文综述探讨了未来的挑战和机遇，突出了二维材料对下一代电子、光电子和生物医学器件发展的变革性影响。
