Abstract
Optical properties of ZnO and Mn-doped ZnO nanocrystals fabrication by vapor phase transport processes
Highlights
Zinc oxide (ZnO), a promising II-IV group semiconductor material with hexagonal wurtzite structure, has been widely applied in various fields [1] such as transducers, transparent conduction electrode, solar sells, and wide ultraviolet (UV) optoelectronic devices [2], due to its direct band gap of 3.37 eV at room temperature and a large exciton binding energy of 60 meV
Al [5,6] predicted that the transition temperature Tc in p-type ZnO DMS will be greater than 300 K, which is very important for making various room temperature electromagnetic devices
Scanning electron microscope, and the optical characteristics were analyzed by photoluminescence spectra at roomtemperature
Summary
Zinc oxide (ZnO), a promising II-IV group semiconductor material with hexagonal wurtzite structure, has been widely applied in various fields [1] such as transducers, transparent conduction electrode, solar sells, and wide ultraviolet (UV) optoelectronic devices [2], due to its direct band gap of 3.37 eV at room temperature and a large exciton binding energy of 60 meV. We try to synthesize and dope ZnO nanocrystals on Si and quartz substrates by a simple vapor phase transport (VPT) process [12]. ZnO nanocrystals were fabricated by a simple vapor phase transport (VPT) process, as shown, where the system is consisted of a large horizontal quartz tube furnace, a vacuum system, a gas meter, and a temperature controller.
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