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Theory of piezotronics and piezo-phototronics

机译:压电学和压电学

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摘要

Piezotronic and piezo-phototronic devices exhibit high performance and have potential applications especially in next-generation self-powered, flexible electronics and wearable systems. In these devices, a strain-induced piezoelectric field at a junction, contact, or interface can significantly modulate the carrier generation, recombination, and transport properties. This mechanism has been studied based on the theory of piezotronics and piezophototronics. Simulation-driven materials design and device improvements have been greatly propelled by the finite element method, density functional theory, and molecular dynamics for achieving high-performance devices. Dynamical piezoelectric fields can also control new quantum states in quantum materials, such as in topological insulators, which pave a new path for enhancing performance and for investigating the fundamental physics of quantum piezotronics and piezo-phototronics.
机译:压电和压电设备具有高性能,并具有潜在的应用,尤其是在下一代自供电,柔性电子和可穿戴系统中。在这些设备中,在结,接触或界面处的应变感应压电场可以显着地调节载流子的产生,重组和传输性质。已经基于压电学和压电学原理研究了这种机理。有限元方法,密度泛函理论和分子动力学极大地推动了仿真驱动材料的设计和设备改进,以实现高性能设备。动态压电场还可以控制量子材料(例如拓扑绝缘体)中的新量子态,这为增强性能以及研究量子压电和压电光电子学的基本物理学铺平了新道路。

著录项

  • 来源
    《MRS bulletin》 |2018年第12期|928-935|共8页
  • 作者单位

    Univ Elect Sci & Technol China, Chengdu, Sichuan, Peoples R China;

    George Washington Univ, Washington, DC 20052 USA;

    Chinese Acad Sci, Beijing Inst Nanoenergy & Nanosyst, Beijing, Peoples R China;

    Hong Kong Polytech Univ, Hong Kong, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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