ACS Nano, volume 8, issue 11, pages 11707-11714
Colloidal Quantum Dots Intraband Photodetectors
1
James Franck Institute, 929 East 57th Street, Chicago, Illinois 60637, United States
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Publication type: Journal Article
Publication date: 2014-10-30
General Physics and Astronomy
General Materials Science
General Engineering
Abstract
Photoconductivity is demonstrated with monodispersed HgSe colloidal quantum dots that are illuminated with radiation resonant with 1S(e)-1P(e) intraband electronic absorption, between 3 and 5 μm. A doping of two electrons per dot gives the lowest dark current, and a detectivity of 8.5 × 10(8) Jones is obtained at 80 K. Photoluminescence of the intraband transition is also observed. The detector properties are discussed in terms of the measured photoluminescence quantum yield, the electron mobility in the 1P(e) state, and the responsivity. The intraband photoresponse allows to fully harness the quantum confined states in colloidal nanostructures, extending the prior limited use of interband transition.
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Deng Z., Jeong K. S., Guyot-Sionnest P. Colloidal Quantum Dots Intraband Photodetectors // ACS Nano. 2014. Vol. 8. No. 11. pp. 11707-11714.
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Deng Z., Jeong K. S., Guyot-Sionnest P. Colloidal Quantum Dots Intraband Photodetectors // ACS Nano. 2014. Vol. 8. No. 11. pp. 11707-11714.
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TY - JOUR
DO - 10.1021/nn505092a
UR - https://doi.org/10.1021/nn505092a
TI - Colloidal Quantum Dots Intraband Photodetectors
T2 - ACS Nano
AU - Deng, Zhiyou
AU - Jeong, Kwang Seob
AU - Guyot-Sionnest, Philippe
PY - 2014
DA - 2014/10/30
PB - American Chemical Society (ACS)
SP - 11707-11714
IS - 11
VL - 8
SN - 1936-0851
SN - 1936-086X
ER -
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BibTex (up to 50 authors)
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@article{2014_Deng,
author = {Zhiyou Deng and Kwang Seob Jeong and Philippe Guyot-Sionnest},
title = {Colloidal Quantum Dots Intraband Photodetectors},
journal = {ACS Nano},
year = {2014},
volume = {8},
publisher = {American Chemical Society (ACS)},
month = {oct},
url = {https://doi.org/10.1021/nn505092a},
number = {11},
pages = {11707--11714},
doi = {10.1021/nn505092a}
}
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MLA
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Deng, Zhiyou, et al. “Colloidal Quantum Dots Intraband Photodetectors.” ACS Nano, vol. 8, no. 11, Oct. 2014, pp. 11707-11714. https://doi.org/10.1021/nn505092a.