S. V. Sorokin, I. V. Sedova, S. V. Gronin, K. G. Belyaev, M. V. Rakhlin, A. A. Toropov, I. S. Mukhin, S. V. Ivanov, “Heterostructures with CdTe/ZnTe quantum dots for single photon emitters grown by molecular beam epitaxy”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 2016, Volume 42, Issue 24,Pages <nobr>64

This article is cited in 3 papers

Heterostructures with CdTe/ZnTe quantum dots for single photon emitters grown by molecular beam epitaxy

S. V. Sorokin^a, I. V. Sedova^a, S. V. Gronin^a, K. G. Belyaev^a, M. V. Rakhlin^a, A. A. Toropov^a, I. S. Mukhin^bc, S. V. Ivanov^a

^a Ioffe Institute, St. Petersburg
^b Federal State Budgetary Institution of Higher Education and Science Saint Petersburg National Research Academic University of the Russian Academy of Sciences, St. Petersburg
^c St. Petersburg National Research University of Information Technologies, Mechanics and Optics

Abstract: We report on the molecular beam epitaxy (MBE) of heterostructures with CdTe/ZnTe quantum dots (QDs) with relatively low surface density, which could be used as single-photon emitters. The QDs were formed on the surface of a 3.1- to 4.5-monolayer-thick two-dimensional strained CdTe layer by depositing amorphous Te layer and its fast thermal desorption. Subsequent thermal annealing of the surface with QDs in the absence of external Te flux led to strong broadening and short-wavelength shift of the QD photoluminescence (PL) peak. Measurement of the micro-PL spectra of individual CdTe/ZnTe quantum dots in fabricated mesastructures with a diameter of 200–1000 nm allowed estimation of the QD surface density as $\sim$10$^{10}$ cm$^{-2}$.

Received: 12.07.2016