Journal of the American Chemical Society, volume 128, issue 10, pages 3241-3247

PbTe colloidal nanocrystals: synthesis, characterization, and multiple exciton generation.

Publication typeJournal Article
Publication date2006-02-16
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor15
ISSN00027863, 15205126
General Chemistry
Catalysis
Biochemistry
Colloid and Surface Chemistry
Abstract
We report an alternative synthesis and the first optical characterization of colloidal PbTe nanocrystals (NCs). We have synthesized spherical PbTe NCs having a size distribution as low as 7%, ranging in diameter from 2.6 to 8.3 nm, with first exciton transitions tuned from 1009 to 2054 nm. The syntheses of colloidal cubic-like PbSe and PbTe NCs using a PbO "one-pot" approach are also reported. The photoluminescence quantum yield of PbTe spherical NCs was measured to be as high as 52 +/- 2%. We also report the first known observation of efficient multiple exciton generation (MEG) from single photons absorbed in PbTe NCs. Finally, we report calculated longitudinal and transverse Bohr radii for PbS, PbSe, and PbTe NCs to account for electronic band anisotropy. This is followed by a comparison of the differences in the electronic band structure and optical properties of these lead salts.

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GOST Copy
Murphy J. E. et al. PbTe colloidal nanocrystals: synthesis, characterization, and multiple exciton generation. // Journal of the American Chemical Society. 2006. Vol. 128. No. 10. pp. 3241-3247.
GOST all authors (up to 50) Copy
Murphy J. E., Beard M. C., Norman A. G., Ahrenkiel P., Johnson J. C., Yu P., Mićić O. I., Ellingson R., Nozik A. J. PbTe colloidal nanocrystals: synthesis, characterization, and multiple exciton generation. // Journal of the American Chemical Society. 2006. Vol. 128. No. 10. pp. 3241-3247.
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.1021/ja0574973
UR - https://doi.org/10.1021/ja0574973
TI - PbTe colloidal nanocrystals: synthesis, characterization, and multiple exciton generation.
T2 - Journal of the American Chemical Society
AU - Murphy, James E
AU - Yu, Pingrong
AU - Mićić, Olga I
AU - Beard, Matthew C
AU - Norman, Andrew G.
AU - Ahrenkiel, Phil
AU - Johnson, Justin C.
AU - Ellingson, Randy
AU - Nozik, Arthur J.
PY - 2006
DA - 2006/02/16 00:00:00
PB - American Chemical Society (ACS)
SP - 3241-3247
IS - 10
VL - 128
SN - 0002-7863
SN - 1520-5126
ER -
BibTex |
Cite this
BibTex Copy
@article{2006_Murphy,
author = {James E Murphy and Pingrong Yu and Olga I Mićić and Matthew C Beard and Andrew G. Norman and Phil Ahrenkiel and Justin C. Johnson and Randy Ellingson and Arthur J. Nozik},
title = {PbTe colloidal nanocrystals: synthesis, characterization, and multiple exciton generation.},
journal = {Journal of the American Chemical Society},
year = {2006},
volume = {128},
publisher = {American Chemical Society (ACS)},
month = {feb},
url = {https://doi.org/10.1021/ja0574973},
number = {10},
pages = {3241--3247},
doi = {10.1021/ja0574973}
}
MLA
Cite this
MLA Copy
Murphy, James E., et al. “PbTe colloidal nanocrystals: synthesis, characterization, and multiple exciton generation..” Journal of the American Chemical Society, vol. 128, no. 10, Feb. 2006, pp. 3241-3247. https://doi.org/10.1021/ja0574973.
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