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Fizika i Tekhnika Poluprovodnikov, 2017 Volume 51, Issue 3, Pages 372–377 (Mi phts6212)

This article is cited in 2 papers

Semiconductor structures, low-dimensional systems, quantum phenomena

Optical properties of hybrid quantum-well–dots nanostructures grown by MOCVD

S. A. Mintairovabc, N. A. Kalyuzhnyyacd, A. M. Nadtochiyabc, M. V. Maksimovacd, S. S. Ruvimove, A. E. Zhukovad

a Federal State Budgetary Institution of Higher Education and Science Saint Petersburg National Research Academic University of the Russian Academy of Sciences, St. Petersburg
b Solar Dots Ltd, St. Petersburg, Russia
c Ioffe Institute, St. Petersburg
d Peter the Great St. Petersburg Polytechnic University
e University of Notre Dame, USA

Abstract: The deposition of In$_{x}$Ga$_{1-x}$As with an indium content of 0.3–0.5 and an average thickness of 3–27 single layers on a GaAs wafer by metalorganic chemical vapor deposition (MOCVD) at low temperatures results in the appearance of thickness and composition modulations in the layers being formed. Such structures can be considered to be intermediate nanostructures between ideal quantum wells and quantum dots. Depending on the average thickness and composition of the layers, the wavelength of the photoluminescence peak for the hybrid InGaAs quantum well–dots nanostructures varies from 950 to 1100 nm. The optimal average In$_{x}$Ga$_{1-x}$As thicknesses and compositions at which the emission wavelength is the longest with a high quantum efficiency retained are determined.

Received: 06.09.2016
Accepted: 12.09.2016

DOI: 10.21883/FTP.2017.03.44210.8394


 English version:
Semiconductors, 2017, 51:3, 357–362

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