ACS Nano, volume 4, issue 9, pages 5211-5216
Mott and Efros-Shklovskii variable range hopping in CdSe quantum dots films.
Publication type: Journal Article
Publication date: 2010-08-18
General Physics and Astronomy
General Materials Science
General Engineering
Abstract
The model of variable range hopping conductivity predicts a crossover between Mott and Efros-Shklovskii as a function of temperature and density of states. This is observed using monodispersed CdSe colloidal quantum dot 3D solids where the density of states at the Fermi level is varied by electrochemistry. At low density of states, both below the lowest state (<0.4e(-)/dot) and in the conductivity gap between the first and second state (2e(-)/dot), the temperature dependence of the conductivity shows the 1/4 exponent of Mott hopping. At other fillings up to 6e(-)/dot, the conductivity shows the 1/2 exponent of Efros-Shklovskii hopping. The non-Ohmic conductivity is also found to be explained quantitatively by the variable range hopping model.
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Liu H., Pourret A., Guyot-Sionnest P. Mott and Efros-Shklovskii variable range hopping in CdSe quantum dots films. // ACS Nano. 2010. Vol. 4. No. 9. pp. 5211-5216.
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Liu H., Pourret A., Guyot-Sionnest P. Mott and Efros-Shklovskii variable range hopping in CdSe quantum dots films. // ACS Nano. 2010. Vol. 4. No. 9. pp. 5211-5216.
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TY - JOUR
DO - 10.1021/nn101376u
UR - https://doi.org/10.1021/nn101376u
TI - Mott and Efros-Shklovskii variable range hopping in CdSe quantum dots films.
T2 - ACS Nano
AU - Liu, Heng
AU - Pourret, A.
AU - Guyot-Sionnest, Philippe
PY - 2010
DA - 2010/08/18
PB - American Chemical Society (ACS)
SP - 5211-5216
IS - 9
VL - 4
SN - 1936-0851
SN - 1936-086X
ER -
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@article{2010_Liu,
author = {Heng Liu and A. Pourret and Philippe Guyot-Sionnest},
title = {Mott and Efros-Shklovskii variable range hopping in CdSe quantum dots films.},
journal = {ACS Nano},
year = {2010},
volume = {4},
publisher = {American Chemical Society (ACS)},
month = {aug},
url = {https://doi.org/10.1021/nn101376u},
number = {9},
pages = {5211--5216},
doi = {10.1021/nn101376u}
}
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Liu, Heng, et al. “Mott and Efros-Shklovskii variable range hopping in CdSe quantum dots films..” ACS Nano, vol. 4, no. 9, Aug. 2010, pp. 5211-5216. https://doi.org/10.1021/nn101376u.