Type I CdSe and CdMgSe Quantum Wells

• Authors: R. Rudniewski , J. Rousset , E. Janik , P. Kossacki , A. Golnik , M. Nawrocki , W. Pacuski
• Languages of publication: EN

Abstracts

EN

In this work we present the band gap engineering, epitaxial growth and optical characterization of CdSe/Cd_{0.9}Mg_{0.1}Se and Cd_{0.9}Mg_{0.1}Se/Cd_{0.85}Mg_{0.15}Se quantum wells with a thickness ranging from 1 to 15 nm. These structures exhibit strong near-band-gap photoluminescence from helium up to room temperature. The emission energy is tuned in the range from 1.74 to 2.1 eV at 7 K, depending on the thickness and well composition. The most intense photoluminescence (both at 7 and 300 K) was observed for 10 nm thick CdSe/Cd_{0.9}Mg_{0.1}Se wells. Such a structure gives also a sharp emission line (FWHM = 20 meV) at low temperature. The presented quantum wells are well suited for being embedded in lattice matched ZnTe based microcavities.

Keywords

EN

78.20.-e; 81.05.Dz; 81.07.-b

Discipline

• 81.07.-b: Nanoscale materials and structures: fabrication and characterization(for structure of nanoscale materials, see 61.46.-w; for nanostructured materials in electrochemistry, see 82.45.Yz; see also 62.23.-c Structural classes of nanoscale systems in mechanical properties of condensed matter)
• 81.05.Dz: II-VI semiconductors
• 78.20.-e: Optical properties of bulk materials and thin films(for optical properties related to materials treatment, see 81.40.Tv; for optical materials, see 42.70-a; for optical properties of superconductors, see 74.25.Gz; for optical properties of rocks and minerals, see 91.60.Mk; for optical properties of specific thin films, see 78.66.-w)

• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 126
• Issue: 5
• Pages: 1167-1170

Dates

published

2014-11

Contributors

author

R. Rudniewski

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Hoża 69, 02-681 Warszawa, Poland

author

J. Rousset

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Hoża 69, 02-681 Warszawa, Poland

author

E. Janik

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Hoża 69, 02-681 Warszawa, Poland

author

P. Kossacki

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Hoża 69, 02-681 Warszawa, Poland

author

A. Golnik

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Hoża 69, 02-681 Warszawa, Poland

author

M. Nawrocki

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Hoża 69, 02-681 Warszawa, Poland

author

W. Pacuski

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Hoża 69, 02-681 Warszawa, Poland

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Identifiers

DOI

10.12693/APhysPolA.126.1167