Semiconductor Quantum Dots as Materials for Lasers Based on Them
Journal Title: Фізика і хімія твердого тіла - Year 2018, Vol 19, Issue 2
Abstract
Quantum dots (QDs) today belong to the central research objects of many scientific groups. The study of theproperties of structures of small size is important both for the further development of electronics, and for theimprovement of existing semiconductor devices. At present, there are many methods of obtaining QDsobtainingunder the laboratory conditions: the method of ultrasonic grinding, molecular beam epitaxy, pulsed laser ablation,as well as using such methods of chemical synthesis as organometall synthesis, synthesis in reverse micelles,electrothermal synthesis, sol-gel synthesis, synthesis using thiol stabilizers, synthesis in a non-aqueous medium.Nowadays, the most promising methods are based on the use of the phenomenon of self-organization. These aremolecular-beam epitaxy and colloidal chemistry methods, and the latter are used for synthesisof nanosizedcrystals.The band gap width and the energy of luminescence peak are determined by the size of the particles.
Authors and Affiliations
S. D. Bardashevska, I. M. Budzulyak, S. I. Budzulyak, B. I. Rachiy, A. M. Boychuk
Keywords
Related Articles
- EP ID EP381655
- DOI 10.15330/pcss.19.2.113-129
- Views 91
- Downloads 0
Gas-Phase Synthesis of Carbazole Compounds and Properties of the Films Nanocomposites
Thin films made on the basis of Poly (N-vinylcarbazole (PVCa) doped with acceptor organic and inorganic semiconducting compounds and gold is investigated. It is envisaged that the doping PVCa donor-acceptor compounds in...
Natural-Philosophical Interpretation Counteract Entropy in the Living World
The article deals with identifying features of living life in relation to the dead and the role of entropy in self-regulation in general and human life in particular vital functions. As a universal law of physics entropy...
Вплив особливостей полімерної матриці на перколяційну поведінку систем на основі поліетерів та вуглецевих нанотрубок
Методами імпедансної спектроскопії були досліджені системи на основі поліетерів та вуглецевих нанотрубок. Встановлено, що кристалічність полімерної матриці значно впливає на електричні та діелектричні характеристики нано...
Synthesis of CdS Nanocrystalsin the Gelatin Matrix with Different рН Values and their Optical Properties
We have investigated the influence of solution pH on the formation of nanocrystals and their size in the process of synthesis. We have analyzed the optical absorption spectra and luminescence of colloidal solutions of NC...
Morphology and Energy Distribution of the Valence Electrons After Mechanochemical Activation SiO2/Al2O3
The analysis of morphological characteristics of nanoscale structures x-Al2O3 + y-SiO2 (x = 0,2; 0,3; 0,75; y = 0,8; 0,7; 0,25) before and after mechanical activation is hold. During the investigation of spot chemical co...