Physical Review B, volume 55, issue 11, pages 7059-7067

Quantum confinement and ultrafast dephasing dynamics in InP nanocrystals

Publication typeJournal Article
Publication date1997-03-15
Quartile SCImago
Q1
Quartile WOS
Q2
Impact factor3.7
ISSN24699950, 24699969, 10980121, 1550235X
Abstract
The electronic level structure and dephasing dynamics of InP nanocrystals in the strong quantum-confinement regime are studied by two complementary techniques: nanosecond hole burning and the femtosecond three-pulse photon echo. Hole burning yields the homogeneous electronic level structure while the photon echo allows the extraction of the linewidth of the band-gap transition. The congestion of electronic levels observed close to the band-edge transition in the hole-burning experiments gives rise to a pulse-width-limited initial decay in the photon-echo signal. The level structure is calculated and assigned using a model which includes valence-band mixing. The homogeneous linewidth of the band-edge transition is approximately 5 meV at 20 K and is broadened considerably at higher temperatures. The temperature dependence of the linewidth is consistent with an intrinsic dephasing mechanism of coupling to low-frequency acoustic modes mediated by the deformation potential. Quantum-confinement effects in III-V semiconductor InP are compared to those of the prototypical CdSe II-VI semiconductor nanocrystal system.

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Banin U. et al. Quantum confinement and ultrafast dephasing dynamics in InP nanocrystals // Physical Review B. 1997. Vol. 55. No. 11. pp. 7059-7067.
GOST all authors (up to 50) Copy
Banin U., Banin U., Cerullo G., Cerullo G., Guzelian A. A., Bardeen C. J., Bardeen C. R., ALIVISATOS A. P., Alivisatos A. P., Shank C. V. Quantum confinement and ultrafast dephasing dynamics in InP nanocrystals // Physical Review B. 1997. Vol. 55. No. 11. pp. 7059-7067.
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.1103/physrevb.55.7059
UR - https://doi.org/10.1103/physrevb.55.7059
TI - Quantum confinement and ultrafast dephasing dynamics in InP nanocrystals
T2 - Physical Review B
AU - Banin, U.
AU - Cerullo, G
AU - Guzelian, A. A.
AU - Bardeen, C J
AU - ALIVISATOS, A. P.
AU - Shank, C. V.
AU - Banin, Uri
AU - Cerullo, Giulio
AU - Bardeen, Charles Russell
AU - Alivisatos, A. Paul
PY - 1997
DA - 1997/03/15 00:00:00
PB - American Physical Society (APS)
SP - 7059-7067
IS - 11
VL - 55
SN - 2469-9950
SN - 2469-9969
SN - 1098-0121
SN - 1550-235X
ER -
BibTex |
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BibTex Copy
@article{1997_Banin,
author = {U. Banin and G Cerullo and A. A. Guzelian and C J Bardeen and A. P. ALIVISATOS and C. V. Shank and Uri Banin and Giulio Cerullo and Charles Russell Bardeen and A. Paul Alivisatos},
title = {Quantum confinement and ultrafast dephasing dynamics in InP nanocrystals},
journal = {Physical Review B},
year = {1997},
volume = {55},
publisher = {American Physical Society (APS)},
month = {mar},
url = {https://doi.org/10.1103/physrevb.55.7059},
number = {11},
pages = {7059--7067},
doi = {10.1103/physrevb.55.7059}
}
MLA
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Banin, U., et al. “Quantum confinement and ultrafast dephasing dynamics in InP nanocrystals.” Physical Review B, vol. 55, no. 11, Mar. 1997, pp. 7059-7067. https://doi.org/10.1103/physrevb.55.7059.
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