Monocrystalline zinc oxide nanorods

Description

Zinc oxide (ZnO) nanorods of a very high quality are produced using a microwave assisted hydrothermal method on almost any type of the substrates. The material is  produced in the growth process from an aqueous solution at a temperature below 80° C for 2-3 minutes. Currently, the maximum size of the substrate is 1.5 x 1.5 cm. Produced material is characterized by a high quality and low defects concentration. Low growth procedure blocks formation of oxygen vacancies. This innovative method was developed and patented at the Institute of Physics PAS.

Specification

• Width: 25 nm - 500 nm
• Height: 50nm - 1000nm
• Density control
• Two type of the nucleation of the growth
  • metals nanoparticles
  • ZnO nanoparticles
• Almost any type of the substrate (Si, GaAs, GaN, quartz, sapphire, glass)
• Extremely high quality of the nanorods
• Lack of the oxygen vacancies
• Intense luminescence only at band-edge region

Applications

Due to the known sensor properties of the ZnO, nanorods of this material naturally are applicable to gas and radiation sensors, wherein the developed surface is needed. ZnO nanorods are also used in photovoltaics, where they can act as both anti-reflective layer and n-type partner in the junction. Moreover, due to the piezoelectric properties of ZnO, these nanorods are an ideal substrate for the measurement of surface-enhanced Raman spectroscopy (SERS).

Patent applications: P.402755 (13.02.2013), P.402753 (13.02.2013), P.400284 (7.08.2012), P.398029 (6.02.2012)