Single Crystal Substrates: ZnO

Description

Zinc oxide (ZnO) is a popular material for single crystal substrates due to its unique combination of optical, electronic, and mechanical properties. ZnO single crystal substrates can be used in a variety of applications, including optoelectronics, sensors, and piezoelectric devices.

ZnO is a wide-bandgap semiconductor with a direct bandgap of about 3.37 eV, making it suitable for use in ultraviolet (UV) optoelectronic devices. ZnO single crystal substrates can be used as a substrate for the growth of various thin film materials, including GaN, ZnMgO, and ZnCdO. The high crystal quality of ZnO substrates allows for the growth of high-quality epitaxial films with low defect density, which is essential for the performance of optoelectronic devices.

ZnO is also a piezoelectric material, meaning that it generates an electrical charge when subjected to mechanical stress. ZnO single crystal substrates are commonly used in the fabrication of surface acoustic wave (SAW) devices, which are used in various sensing and communication applications.

In addition to its unique electronic and mechanical properties, ZnO is also biocompatible and has antimicrobial properties, making it suitable for use in medical and healthcare applications.

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