Type-II CdSe/CdTe core/crown semiconductor nanoplatelets.
1
Nexdot, 10 Rue Vauquelin, 75005 Paris, France
|
3
Laboratoire
Photonique
et Nanostructures, CNRS, 91460 Marcoussis, France
|
Publication type: Journal Article
Publication date: 2014-11-06
scimago Q1
wos Q1
SJR: 5.554
CiteScore: 22.5
Impact factor: 15.6
ISSN: 00027863, 15205126
PubMed ID:
25338215
General Chemistry
Catalysis
Biochemistry
Colloid and Surface Chemistry
Abstract
We have synthesized atomically flat CdSe/CdTe core/crown nanoplatelets (NPLs) with thicknesses of 3, 4, and 5 monolayers with fine control of the crown lateral dimensions. In these type-II NPLs, the charges separate spatially, and the electron wave function is localized in the CdSe core while the hole wave function is confined in the CdTe crown. The exciton's recombination occurs across the heterointerface, and as a result of their spatially indirect band gap, an important emission red shift up to the near-infrared region (730 nm) is observed with long fluorescence lifetimes that range from 30 to 860 ns, depending on the type of interface between the core and the crown. These type-II NPLs have a high quantum yield of 50% that can be further improved to 70% with a gradient interface. We have characterized these novel CdSe/CdTe core/crown NPLs using UV-vis, emission, and excitation spectroscopy, X-ray diffraction, energy-dispersive X-ray spectroscopy, and high-resolution transmission electron microscopy.
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166
Total citations:
166
Citations from 2024:
17
(10.24%)
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Pedetti S. et al. Type-II CdSe/CdTe core/crown semiconductor nanoplatelets. // Journal of the American Chemical Society. 2014. Vol. 136. No. 46. pp. 16430-16438.
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Pedetti S., Ithurria S., Heuclin H., Patriarche G., Dubertret B. Type-II CdSe/CdTe core/crown semiconductor nanoplatelets. // Journal of the American Chemical Society. 2014. Vol. 136. No. 46. pp. 16430-16438.
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TY - JOUR
DO - 10.1021/ja509307m
UR - https://doi.org/10.1021/ja509307m
TI - Type-II CdSe/CdTe core/crown semiconductor nanoplatelets.
T2 - Journal of the American Chemical Society
AU - Pedetti, Silvia
AU - Ithurria, S.
AU - Heuclin, Hadrien
AU - Patriarche, Gilles
AU - Dubertret, Benoît
PY - 2014
DA - 2014/11/06
PB - American Chemical Society (ACS)
SP - 16430-16438
IS - 46
VL - 136
PMID - 25338215
SN - 0002-7863
SN - 1520-5126
ER -
Cite this
BibTex (up to 50 authors)
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@article{2014_Pedetti,
author = {Silvia Pedetti and S. Ithurria and Hadrien Heuclin and Gilles Patriarche and Benoît Dubertret},
title = {Type-II CdSe/CdTe core/crown semiconductor nanoplatelets.},
journal = {Journal of the American Chemical Society},
year = {2014},
volume = {136},
publisher = {American Chemical Society (ACS)},
month = {nov},
url = {https://doi.org/10.1021/ja509307m},
number = {46},
pages = {16430--16438},
doi = {10.1021/ja509307m}
}
Cite this
MLA
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Pedetti, Silvia, et al. “Type-II CdSe/CdTe core/crown semiconductor nanoplatelets..” Journal of the American Chemical Society, vol. 136, no. 46, Nov. 2014, pp. 16430-16438. https://doi.org/10.1021/ja509307m.