压电
材料科学
纤锌矿晶体结构
光电子学
半导体
数码产品
能量收集
纳米线
带隙
激发
纳米技术
电气工程
物理
能量(信号处理)
工程类
复合材料
冶金
量子力学
锌
出处
期刊:Nano Today
[Elsevier]
日期:2010-12-01
卷期号:5 (6): 540-552
被引量:718
标识
DOI:10.1016/j.nantod.2010.10.008
摘要
Due to the polarization of ions in a crystal that has non-central symmetry, a piezoelectric potential (piezopotential) is created in the crystal by applying a stress. For materials such as ZnO, GaN, and InN in the wurtzite structure family, the effect of piezopotential on the transport behavior of charge carriers is significant due to their multiple functionalities of piezoelectricity, semiconductor and photon excitation. By utilizing the advantages offered by these properties, a few new fields have been created. Electronics fabricated by using inner-crystal piezopotential as a “gate” voltage to tune/control the charge transport behavior is named piezotronics, with applications in strain/force/pressure triggered/controlled electronic devices, sensors and logic units. Piezo-phototronic effect is a result of three-way coupling among piezoelectricity, photonic excitation and semiconductor transport, which allows tuning and controlling of electro-optical processes by strain induced piezopotential. The objective of this review article is to introduce the fundamentals of piezotronics and piezo-phototronics and to give an updated progress about their applications in energy science and sensors.
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