Journal of Nanomedicine & Nanotechnology

Superimposed QDs and nanotechnology

26^th International Conference on ADVANCED NANOSCIENCE AND NANOTECHNOLOGY

December 05-06, 2022 | Dubai, UAE

Ali Rostami

University of Tabriz, Iran

Posters & Accepted Abstracts: J Nanomed Nanotechnol

Abstract:

The electron, phonon, and photon transport in solids (crystals) depends on lattice properties. Manipulation of propagation properties needs to manipulate crystal parameters such as lattice constant, atoms in the lattice, etc. There are a limited number of crystalline structures in nature to manipulate charge, phonon, and photon transfer in electronics, acoustics, and photonics. The basic problem is how one can make single crystals with desired charge, phonon, and photon transfer performance? Also, how one can manipulate the optical, and electrical performance of a device? It seems that nanotechnology and especially nanoparticles and superimposed nanocrystals can help to solve this problem. In this short letter, the superposition of Quantum Dots as a solution to enhance the capability of device designers in this regard is presented, discussed, and demonstrated by simple mathematical calculation. If we use the superimposition of QDs, we can realize multiwavelength lasers in a single cavity. The ultra-broadband semiconductor optical amplifiers can be implemented by this idea. Multiwavelength photodetectors with multi-electrical outputs are another most important application that can be realized using this idea. Other interesting applications can be realized using the proposed idea too. All these advantages are related to optical and electrical properties that are related to the size of nanocrystals. So, lets to show how it is possible to make different crystals using the superimposition of well-known crystals. To demonstrate that, first, by choosing different crystals, and using the superposition of those, it is shown that the obtained structure is similar to a new crystal with a lattice constant that depends on initial superimposed crystal lattice constants as well as a geometrical combination of those. In the second part, we show that using colloidal QDs, it is so easy to combine different QDs with different sizes in a unique solution, and thus superimposed QDs with the desired density of each QDs will be available.