Open AccessБимодальность в спектрах электролюминесценции InGaAs квантовых яма-точек
Author(s) -
A.A. Харченко,
А.М. Надточий,
А.А. Серин,
С.А. Минтаиров,
Н.А. Калюжный,
А.Е. Жуков,
М.В. Максимов,
Stefan Breuer
Publication year - 2022
Publication title -
fizika i tehnika poluprovodnikov
Language(s) - English
Resource type - Journals
eISSN - 1726-7315
pISSN - 0015-3222
DOI - 10.21883/ftp.2022.01.51818.9730
Subject(s) - quantum dot , electroluminescence , polarization (electrochemistry) , materials science , optoelectronics , light emitting diode , emission spectrum , atmospheric temperature range , spectral line , physics , condensed matter physics , molecular physics , optics , chemistry , nanotechnology , quantum mechanics , layer (electronics) , meteorology
The electroluminescence spectra of waveguiding structures based on quantum well-dots were investigated with polarization resolution in the temperature range of 60−300 K. It is found that the ground state emission consists of two peaks with different degrees of TE-polarization and these peaks are getting closer with temperature decrease. We attribute the bimodality to the existence of two different types of nanoobjects in the active region: the quantum well-dots, which have partially TE-polarized emission, and quantum dots emitting almost fully TE-polarized light.