Landolt-Börnstein - Group III Condensed Matter

HgTe, CdTe, (Cd,Hg)Te, Cd(Te,Se), Cd(Te,S), ZnTe, HgSe, CdSe, Cd(Se,S), (Cd,Mn)Se, (Cd,Zn)Se quantum dots-nanocrystals

Abstract

This chapter II-VI quantum dot I - nanocrystals is confined to data obtained for (almost) spherical quantum dots, i.e. for which the size can be defined by a radius. It summarizes results for II-VI nanocrystals ((HgTe, CdTe, (Cd, Hg)Te, Cd(Te,Se) and Cd(Te,S), ZnTe, HgSe, CdSe, Cd(Se,S), (Cd,Mn)Se and (Cd,Zn)Se) embedded in transparent matrices (glass, polymer, organic solutions, micelle media, porous media etc.) or deposited as isolated nanocrystals on substrates. Preparation methods and theoretical descriptions of energy states are given for HgTe, CdTe, (Cd,Hg)Te, Cd(Te,Se), Cd(Te,S), ZnTe, HgSe, CdSe, Cd(Se,S), (Cd,Mn)Se, and (Cd,Zn)Se. Size-dependent energy states, splitting of states, interaction with phonons, modification of the optical properties by external fields (electroabsorption, electroluminescence, charge transport and photocurrent), external magnetic fields, hydrostatic pressure and impurity states are explained in low-density regime for some of these compounds. Biexciton states, nonlinear optical coefficients, stimulated emission and optical gain are explained in intermediate-density regime. Coherent dynamics, relaxation and recombination of optical excitations (dephasing times and homogeneous linewidth, radiative and nonradiative recombination), dot-dot interactions, and quantum dot arrays are explained in high-density regime.

Cite this page

References (527)

About this content

Title
HgTe, CdTe, (Cd,Hg)Te, Cd(Te,Se), Cd(Te,S), ZnTe, HgSe, CdSe, Cd(Se,S), (Cd,Mn)Se, (Cd,Zn)Se quantum dots-nanocrystals
Book Title
Optical Properties. Part 2
In
II-VI Quantum dots I – Nanocrystals
Book DOI
10.1007/b98078
Chapter DOI
10.1007/10860224_28
Part of
Landolt-Börnstein - Group III Condensed Matter
Volume
34C2
Editors
  • C. Klingshirn Send Email (10)
  • Editor Affiliation
  • 10 Institut für Angewandte Physik, Universität Karlsruhe (TH), 76131, Karlsruhe, Gemany
  • Authors
  • S.V. Gaponenko Send Email (100)
  • U. Woggon Send Email (102)
  • Author Affiliation
  • 100 Institute of Molecular and Atomic Physics, National Academy of Sciences, Minsk, Belarus
  • 102 Experimentelle Physik II, Universität Dortmund, 44227, Dortmund, Germany
  • Cite this content

    Citation copied