Two-Dimensional Piezoelectric Semiconductor Materials with C

发布时间：2021-10-16 16:43

　　在非中心对称材料中,利用应变会产生压电电荷,压电效应已经广泛应用于机电驱动、传感和能量采集。传统的压电材料（如PZT或PVDF）一般都是绝缘体,不适用于功能电子/光电器件。压电材料中用于调谐载流子的应变诱导的压电电荷长期以来一直被忽视。二维压电半导体是具有压电和半导体特性的二维材料。这些材料具有非中心对称结构,在纳米尺度、机电框架和光电器件中表现出很高的潜力。在光电子器件、能量收集和电子学领域,人们对这种二维压电半导体材料的兴趣正在发展。纤锌矿或闪锌矿结构的半导体材料（如Zn O、Ga N和Cd S）也具有压电性,但由于它们的压电系数较小,不能够像PZT一样在压电致动器和传感器等方面广泛应用。压电和半导体的耦合引起了高性能器件应用以及新奇的物理现象,因此这些研究引起了压电电子学和压电光电子学的一个新领域。压电电子学和压电光电子学的基本原则在于应变引起的极化电荷在界面能有效控制势垒高度,通过局域的节或接触来提高电荷载流子输运,对所应用器件中自由载流子的浓度分布和界面电子电荷态的表现出了很大的影响。本文采用了压电和压电光电的基本物理原理,以二维压电半导体材料为基础,结合压电与半导体的特性,... 

【文章来源】：电子科技大学四川省 211工程院校 985工程院校 教育部直属院校

【文章页数】：100 页

【学位级别】：博士

【文章目录】：
摘要
ABSTRACT
Chapter 1 Introduction
    1.1 Motivation
    1.2 Piezoelectric Property
        1.2.1 Piezoelectric Charges
    1.3 Piezoelectric Semiconductor
        1.3.1 In-plane and out-of-plane piezoelectric semiconductor
    1.4 Thesis Scope
    1.5 Dissertation Outline and Organization
Chapter 2 Piezotronics and Piezo-phototronics Effects
    2.1 Basics of Piezotronics
        2.1.1 Piezoelectric Charges on Metal-Semiconductor Contact
        2.1.2 Basic theory of piezotronics
    2.2 Basics of piezo-phototronics
        2.2.1 Theoretical framework of Piezophototronic effect in solar cell
    2.3 Practical application of piezo-phototronics in optoelectronic devices
        2.3.1 Piezo-phototronic effect on a solar cell
        2.3.2 Photodetector
        2.3.3 LEDs
    2.4 Device applications of two-dimensional piezoelectric semiconductor
    2.5 Summary
Chapter 3 Piezo-phototronic Single Junction solar cell
    3.1 Two Dimensional(2D)Monochalcogenides material(s)Solar cell
    3.2 Formulation of2-D materials for piezo-phototronic solar cell
    3.3 Results and discussions
    3.4 Third Generation Semiconductor Material Piezophototronic Solar cell
    3.5 Conclusion
Chapter 4 Piezo-phototronic Multi-Junction Solar Cells
    4.1 Concept of piezo-phototronic multijunction solar cell
    4.2 Model of multijunction solar cell based on detailed balance limit
    4.3 Analytical model of 2D piezo-phototronic multijunction solar cell
    4.4 Results and Discussion
    4.5 Conclusion
Chapter 5 Conclusions
    5.1 Conclusion
    5.2 Future Prospective
Acknowledgements
References
Research Results Obtained During the Study for Doctoral Degree


【参考文献】：
期刊论文
[1]基于第三代半导体的压电电子学和压电光电子学器件[J]. 朱来攀,翟俊宜,王中林.  科学通报. 2020(25)



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