DOI

We studied the luminescence of CdTe layers with a nominal thickness of one, two, four, and eight monolayers (MLs) grown by atomic layer deposition in a ZnTe matrix. The layers with a thickness of one and two monolayers exhibit the properties of homogeneous layers, while the layers with a thickness of four and eight monolayers are planar arrays of quantum dots (QDs). The sizes of QDs and their size dispersion increase with an increase in the nominal thickness of the CdTe layer. The shape of the luminescence excitation spectra of the CdTe layer in these samples varies greatly. Depending on the energy distance between the exciton levels of the CdTe layers and the ZnTe matrix, the ratio of the contributions of the ZnTe exciton and charge carriers unbound to the exciton to the energy transfer varies significantly.
Язык оригиналаанглийский
Страницы (с-по)1056-1059
Число страниц4
ЖурналPhysics of the Solid State
Том62
Номер выпуска6
Дата раннего онлайн-доступа10 июн 2020
DOI
СостояниеОпубликовано - 2020

    Области исследований

  • heterostructures II–VI, excitons, luminescence, energy transfer

    Предметные области Scopus

  • Физика конденсатов

ID: 53946648