Journal of the American Chemical Society, volume 128, issue 10, pages 3241-3247
PbTe colloidal nanocrystals: synthesis, characterization, and multiple exciton generation.
James E Murphy
1
,
Matthew C Beard
1
,
Andrew G. Norman
1
,
Phil Ahrenkiel
1
,
Justin C. Johnson
1
,
Pingrong Yu
1
,
Olga I Mićić
1
,
Randy Ellingson
1
,
Arthur J. Nozik
1
Publication type: Journal Article
Publication date: 2006-02-16
Q1
Q1
SJR: 5.489
CiteScore: 24.4
Impact factor: 14.4
ISSN: 00027863, 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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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.
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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.
Cite this
RIS
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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 - Beard, Matthew C
AU - Norman, Andrew G.
AU - Ahrenkiel, Phil
AU - Johnson, Justin C.
AU - Yu, Pingrong
AU - Mićić, Olga I
AU - Ellingson, Randy
AU - Nozik, Arthur J.
PY - 2006
DA - 2006/02/16
PB - American Chemical Society (ACS)
SP - 3241-3247
IS - 10
VL - 128
SN - 0002-7863
SN - 1520-5126
ER -
Cite this
BibTex (up to 50 authors)
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@article{2006_Murphy,
author = {James E Murphy and Matthew C Beard and Andrew G. Norman and Phil Ahrenkiel and Justin C. Johnson and Pingrong Yu and Olga I Mićić 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}
}
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.