Recommended application field: Integrated nanoscale optoelectronics, photonics, sensor technology.

Advantages over analogues: Technical advantages: as a result of using the invention the size of a laser resonator is reduced, the threshold for stimulated emission is diminished, the range of resonators and models of laser is enlarged, which enhances the performance of optoelectronic and photonic circuits and reliability of identification and security systems.

Description of the development:
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New methods to grow hierarchical ZnO structures by chemical vapour transport from a mixture of ZnO and carbon powders in a vertical or horizontal furnace with specific temperature gradients and carrier gas flow rates have been developed. Those methods create conditions for radial self-assembling of hexagonal ZnO nanorods in cylindrical micro-clusters, or for the growth of hemispherical micro-formations assembled from ZnO nanostructures. ZnO structure in the form of a wire was grown by the modified vapour transport and condensation method. The wire consists of a dente core that may play the role of waveguide and a shell formed mainly from tertapod-type crystallites. The control of the morphology of ZnO assembling is an effective way to design laser resonators. Due to the high optical quality, the material is a gain medium for stimulated emission. The combination of these two factors is an excellent basis for development of a variety of new ultraviolet microlasers.

Information about newness of the development:
there are Ukrainian patents -- 1 items

Possibility of transfer abroad:
Licence's sale
Combinated reduction to industrial level

Photo

Country Moldova

For additional information turn to:
E-mail: gal@uintei.kiev.ua