Academy of Advanced Interdisciplinary Research, School of Advanced Materials and Nanotechnology, Xidian University, Xi'an 710126, China.
National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures and Jiangsu Provincial Key Laboratory for Nanotechnology, Nanjing University, Nanjing 210093, China.
Nanoscale. 2023 Jun 1;15(21):9496-9502. doi: 10.1039/d3nr00944k.
Violet phosphorene (VP) has an extensive range of potential uses in piezoelectric gadgets due to its excellent electron transport capabilities. Nevertheless, VP materials are devoid of the piezoelectric effect because of the absence of ionic polarity. In this study, the piezoelectric capacity of the VP nano-sheet was investigated. According to the findings, the VP exhibited precise in-plane and out-of-plane piezoelectricity. For both in-plane as well as out-of-plane applications, the monolayer of VP had a characteristic direct piezoelectric reaction, and piezoelectric hysteresis loops were established at an electric field excitation of -18 V to +18 V. According to calculations using the density functional theory, VP has inside inherent dipoles. Outcomes from piezoelectric force microscopy, in particular, for VP with a thickness of 17.6 nm revealed that is up to 12.65 pm V and is up to 1.03 pm V. The thickness-relied piezoelectric results demonstrated that VP's piezoelectric capabilities degraded as width increased.
紫磷烯（VP）具有优异的电子输运能力，因此在压电设备中有广泛的应用潜力。然而，由于缺乏离子极性，VP 材料没有压电效应。在这项研究中，研究了 VP 纳米片的压电性能。研究结果表明，VP 表现出精确的面内和面外压电性。对于面内和面外应用，单层 VP 具有特征的直接压电响应，并在-18 V 至+18 V 的电场激励下建立了压电滞后环。根据密度泛函理论的计算，VP 具有内在的偶极子。特别是对于厚度为 17.6nm 的 VP，压电力显微镜的结果表明，是 12.65 pm V，是 1.03 pm V。厚度依赖的压电结果表明，VP 的压电性能随宽度的增加而降低。
