ZnO (Zinc Oxide) Substrates
Zinc oxide (ZnO) is a wide-bandgap semiconductor material that has attracted significant attention due to its unique optical and electrical properties. It has a hexagonal wurtzite crystal structure and has a bandgap energy of approximately 3.37 eV. These properties make ZnO suitable for applications such as high-frequency and high-power electronic devices, UV detection and sensing, and optoelectronics. As a substrate, ZnO has been used for the growth of other semiconductor materials such as ZnSe, GaN, and InN for various optoelectronic devices, such as LEDs and solar cells. However, due to its relatively low thermal conductivity, ZnO is not commonly used as a substrate for high-power electronic devices.