Effect of quantum confinement on the ...
Document type :
Compte-rendu et recension critique d'ouvrage
Title :
Effect of quantum confinement on the dielectric constant of PbSe
Author(s) :
Hens, Zeger [Auteur]
Universiteit Utrecht / Utrecht University [Utrecht]
Vanmaekelbergh, Daniel [Auteur]
Universiteit Utrecht / Utrecht University [Utrecht]
Kooij, Ernst Stefan [Auteur]
Wormeester, Herbert [Auteur]
Allan, Guy [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Delerue, Christophe [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Universiteit Utrecht / Utrecht University [Utrecht]
Vanmaekelbergh, Daniel [Auteur]
Universiteit Utrecht / Utrecht University [Utrecht]
Kooij, Ernst Stefan [Auteur]
Wormeester, Herbert [Auteur]
Allan, Guy [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Delerue, Christophe [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Journal title :
Physical Review Letters
Pages :
026808/1-4
Publisher :
American Physical Society
Publication date :
2004
ISSN :
0031-9007
HAL domain(s) :
Sciences de l'ingénieur [physics]
English abstract : [en]
Monolayers of lead selenide nanocrystals of a few nanometers in height have been made by electrodeposition on a Au(111) substrate. These layers show a thickness-dependent dielectric function, which was determined using ...
Show more >Monolayers of lead selenide nanocrystals of a few nanometers in height have been made by electrodeposition on a Au(111) substrate. These layers show a thickness-dependent dielectric function, which was determined using spectroscopic ellipsometry. The experimental results are compared with electronic structure calculations of the imaginary part of the dielectric function of PbSe nanocrystals. We demonstrate that the size-dependent variation of the dielectric function is affected by quantum confinement at well-identifiable points in the Brillouin zone, different from the position of the band-gap transitionShow less >
Show more >Monolayers of lead selenide nanocrystals of a few nanometers in height have been made by electrodeposition on a Au(111) substrate. These layers show a thickness-dependent dielectric function, which was determined using spectroscopic ellipsometry. The experimental results are compared with electronic structure calculations of the imaginary part of the dielectric function of PbSe nanocrystals. We demonstrate that the size-dependent variation of the dielectric function is affected by quantum confinement at well-identifiable points in the Brillouin zone, different from the position of the band-gap transitionShow less >
Language :
Anglais
Popular science :
Non
Source :
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