Optical properties of a wrinkled nanomembrane with embedded quantum well.
A wrinkled nanomembrane with embedded quantum well (QW), fabricated by the partial release and bond back of epitaxial layers upon underetching, is investigated by spatially resolved micro-photoluminescence spectroscopy. From the observed QW transition energies and calculations based on the linear deformation potential theory, we find that the bonded back regions are fully relaxed and act on the strain state of the wrinkled QW. Light emission enhancement observed in the wrinkled QW is explained by interference contrast theory.
Mei
Yongfeng
Y
Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, D-70569 Stuttgart, Germany. y.mei@ifw-dresden.de
Kiravittaya
Suwit
S
Benyoucef
Mohamed
M
Thurmer
Dominic J
DJ
Zander
Tim
T
Deneke
Christoph
C
Cavallo
Francesca
F
Rastelli
Armando
A
Schmidt
Oliver G
OG
D003198:Computer Simulation; D003460:Crystallization / Q000379:methods*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008567:Membranes, Artificial; D008956:Models, Chemical; D008958:Models, Molecular; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000379:methods*; D055095:Optics and Photonics; D010316:Particle Size; D011789:Quantum Theory; D012542:Scattering, Radiation; D013499:Surface Properties
D046911:Macromolecular Substances; D008567:Membranes, Artificial