Piezo-phototronics in quantum well structures

Piezotronics and piezo-phototronics—fundamentals and applications

Technology advancement that can provide new solutions and enable augmented capabilities to complementary metal–oxide–semiconductor (CMOS)-based technology, such as active and adaptive interaction between machine and human/ambient, is highly desired. Piezotronic nanodevices and integrated systems exhibit potential in achieving these application goals. Utilizing the gating effect of piezopotentia...

Piezo-phototronics effect on nano/microwire solar cells

Wurtzite structures, such as ZnO, GaN, InN and CdS, are piezoelectric semiconductor materials. A piezopotential is formed in the crystal by the piezoelectric charges created by applying a stress. The inner-crystal piezopotential can effectively tune/control the carrier separations and transport processes at the vicinity of a p–n junction or metal–semiconductor contact, which is called the piezo...

Lateral nanowire/nanobelt based nanogenerators, piezotronics and piezo-phototronics

Relying on the piezopotential created in ZnO under straining, nanogenerators, piezotronics and piezophototronics developed based on laterally bonded nanowires on a polymer substrate have been reviewed. The principle of the nanogenerator is a transient flow of electrons in external load as driven by the piezopotential created by dynamic straining. By integrating the contribution made by millions...

Recent progress in piezo-phototronics with extended materials, application areas and understanding

The coupling effect between different properties in a controllable manner is of great interest for getting full understanding of materials, exploring novel physical phenomena and developing new applications. Piezo-phototronics is an emerging field which explores the three-way coupling among mechanical, optical and electrical properties in materials with noncentrosymmetric crystal structure. It ...

Quantum well intermixing in GaInNAs/GaAs structures