FUNCTIONAL ELEMENT OF A QUANTUM EMITTER Russian patent published in 2022 - IPC C30B29/62 C09K11/08 H01L33/04 H01L33/50 B82Y30/00 

FIELD: semiconductor technology.

SUBSTANCE: invention relates to semiconductor technology and can be used in quantum cryptography, in information transmission systems, quantum computing or data processing, and also as a metrological standard of light flux and for the power industry. The functional element of the quantum emitter is a filamentary nanocrystal with a rod-shell structure made of semiconductor materials. The material of the rod 1 has a smaller band gap than the material of the shell 3. The rod 1 contains quantum dots 2 of the same transverse size d, located along the axis of the nanocrystal and having a different axial size h₁-h_n. The ratio between the axial size L of the filamentary nanocrystal and the distance l₁-l_n-1 between the quantum dots 2 is determined by the condition of their distribution in such a way that it is possible to optically excite each quantum dot 2 separately. The filamentary nanocrystal has a vertex with a convergence angle of 5-10 degrees. The axial size of the h₁-h_n quantum dots 2 increases towards the tip of the filamentary nanocrystal while maintaining the l₁-l_n-1 distance unchanged.

EFFECT: possibility of radiation variability is provided by simultaneously receiving a packet of signals of different wavelengths, which increases the density of transmitted information, or single signals of different wavelengths spaced in time, which expands the possibilities of encoding information.

3 cl, 7 dwg