Addressing the exciton fine structure in ...
Document type :
Compte-rendu et recension critique d'ouvrage
DOI :
Title :
Addressing the exciton fine structure in colloidal nanocrystals: the case of CdSe nanoplatelets
Author(s) :
Shornikova, Elena [Auteur correspondant]
Rzhanov Institute of Semiconductor Physics [ISP]
Biadala, Louis [Auteur correspondant]
Physique - IEMN [PHYSIQUE - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Yakovlev, Dmitri [Auteur correspondant]
A.F. Ioffe Physical-Technical Institute
Sapega, Victor [Auteur]
A.F. Ioffe Physical-Technical Institute
Kusrayev, Yuri [Auteur]
A.F. Ioffe Physical-Technical Institute
Mitioglu, Anatolie [Auteur]
Ballottin, Mariana [Auteur]
Christianen, Peter [Auteur]
Radboud University [Nijmegen]
Belykh, Vasilii [Auteur]
P. N. Lebedev Physical Institute of the Russian Academy of Sciences [Moscow] [LPI RAS]
Kochiev, Mikhail [Auteur]
P. N. Lebedev Physical Institute of the Russian Academy of Sciences [Moscow] [LPI RAS]
Sibeldin, Nikolai [Auteur]
P. N. Lebedev Physical Institute of the Russian Academy of Sciences [Moscow] [LPI RAS]
Golovatenko, Aleksandr [Auteur]
A.F. Ioffe Physical-Technical Institute
Rodina, Anna [Auteur]
A.F. Ioffe Physical-Technical Institute
Gippius, Nikolay [Auteur]
Skolkovo Institute of Science and Technology [Moscow] [Skoltech]
Kuntzmann, Alexis [Auteur]
Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris [ESPCI Paris]
Jiang, Ye [Auteur]
Nanjing University of Science and Technology [NJUST]
Nasilowski, Michel [Auteur]
Dubertret, Benoit [Auteur]
Laboratoire de Physique et d'Etude des Matériaux (UMR 8213) [LPEM]
Bayer, Manfred [Auteur]
Rzhanov Institute of Semiconductor Physics [ISP]
Biadala, Louis [Auteur correspondant]

Physique - IEMN [PHYSIQUE - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Yakovlev, Dmitri [Auteur correspondant]
A.F. Ioffe Physical-Technical Institute
Sapega, Victor [Auteur]
A.F. Ioffe Physical-Technical Institute
Kusrayev, Yuri [Auteur]
A.F. Ioffe Physical-Technical Institute
Mitioglu, Anatolie [Auteur]
Ballottin, Mariana [Auteur]
Christianen, Peter [Auteur]
Radboud University [Nijmegen]
Belykh, Vasilii [Auteur]
P. N. Lebedev Physical Institute of the Russian Academy of Sciences [Moscow] [LPI RAS]
Kochiev, Mikhail [Auteur]
P. N. Lebedev Physical Institute of the Russian Academy of Sciences [Moscow] [LPI RAS]
Sibeldin, Nikolai [Auteur]
P. N. Lebedev Physical Institute of the Russian Academy of Sciences [Moscow] [LPI RAS]
Golovatenko, Aleksandr [Auteur]
A.F. Ioffe Physical-Technical Institute
Rodina, Anna [Auteur]
A.F. Ioffe Physical-Technical Institute
Gippius, Nikolay [Auteur]
Skolkovo Institute of Science and Technology [Moscow] [Skoltech]
Kuntzmann, Alexis [Auteur]
Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris [ESPCI Paris]
Jiang, Ye [Auteur]
Nanjing University of Science and Technology [NJUST]
Nasilowski, Michel [Auteur]
Dubertret, Benoit [Auteur]
Laboratoire de Physique et d'Etude des Matériaux (UMR 8213) [LPEM]
Bayer, Manfred [Auteur]
Journal title :
Nanoscale
Pages :
646-656
Publisher :
Royal Society of Chemistry
Publication date :
2018
ISSN :
2040-3364
HAL domain(s) :
Physique [physics]/Physique [physics]/Optique [physics.optics]
English abstract : [en]
We study the band-edge exciton fine structure and in particular its bright-dark splitting in colloidal semiconductor nanocrystals by four different optical methods based on fluorescence line narrowing and time-resolved ...
Show more >We study the band-edge exciton fine structure and in particular its bright-dark splitting in colloidal semiconductor nanocrystals by four different optical methods based on fluorescence line narrowing and time-resolved measurements at various temperatures down to 2 K. We demonstrate that all these methods provide consistent splitting values and discuss their advances and limitations. Colloidal CdSe nanoplatelets with thicknesses of 3, 4 and 5 monolayers are chosen for experimental demonstrations. The bright-dark splitting of excitons varies from 3.2 to 6.0 meV and is inversely proportional to the nanoplatelet thickness. Good agreement between experimental and theoretically calculated size dependence of the bright-dark exciton slitting is achieved. The recom-bination rates of the bright and dark excitons and the bright to dark relaxation rate are measured by time-resolved techniques.Show less >
Show more >We study the band-edge exciton fine structure and in particular its bright-dark splitting in colloidal semiconductor nanocrystals by four different optical methods based on fluorescence line narrowing and time-resolved measurements at various temperatures down to 2 K. We demonstrate that all these methods provide consistent splitting values and discuss their advances and limitations. Colloidal CdSe nanoplatelets with thicknesses of 3, 4 and 5 monolayers are chosen for experimental demonstrations. The bright-dark splitting of excitons varies from 3.2 to 6.0 meV and is inversely proportional to the nanoplatelet thickness. Good agreement between experimental and theoretically calculated size dependence of the bright-dark exciton slitting is achieved. The recom-bination rates of the bright and dark excitons and the bright to dark relaxation rate are measured by time-resolved techniques.Show less >
Language :
Anglais
Popular science :
Non
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