| Issue |
Eur. Phys. J. Appl. Phys.
Volume 42, Number 2, May 2008
|
|
|---|---|---|
| Page(s) | 113 - 119 | |
| Section | Nanomaterials and Nanotechnologies | |
| DOI | https://doi.org/10.1051/epjap:2008043 | |
| Published online | 09 April 2008 | |
https://doi.org/10.1051/epjap:2008043
Frequency dependent electrical characteristics of PbS quantum dots
1
Dept. of Physics, Gauhati University, Guwahati, Assam-781014, India
2
Dept. of Physics, Tezpur University, Napaam, Tezpur, Assam-784028, India
3
Gauhati University, Guwahati, Assam 781014, India
Corresponding author: shyamoli_ma@yahoo.co.in
Received:
23
November
2006
Revised:
28
March
2007
Accepted:
29
January
2008
Published online:
9
April
2008
PbS quantum dots (bare and silica coated) have been synthesized in PVA matrix with average size 10 nm and 9 nm. The capacitance-voltage (C − V) and current –voltage (I − V) response of both bare and coated quantum dots have been recorded in different frequency range (Hz–MHz). Both the samples show frequency dependent response except in case of C − V characteristics at MHz range. The I − V responses at low frequency range exhibit step like structures which could be attributed to 'Coulomb blockade'.
PACS: 73.63.Kv – Quantum dots / 82.35.Np – Nanoparticles in polymers / 61.05.cp – X-ray diffraction
© EDP Sciences, 2008
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.