Issue |
Europhys. Lett.
Volume 52, Number 4, November II 2000
|
|
---|---|---|
Page(s) | 468 - 473 | |
Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
DOI | https://doi.org/10.1209/epl/i2000-00461-5 | |
Published online | 01 September 2002 |
Optical absorption by nanoparticles of
1
Department of Physics, University of Calcutta - Calcutta, 700 009,
India
2
Indian Association for the Cultivation of Science - Calcutta, 700 032, India
Received:
11
July
2000
Accepted:
22
September
2000
Cuprous oxide ( particles coated with polyacrylamide having diameters in the range from 4.8 to 8.6 nm were prepared by a chemical method. The optical absorption of these particles was found to be characterized by excitons with corresponding energies varying from 2.6 to 2.25 eV in the particle size range mentioned above. A second optical-absorption maximum signifying surface states within the band gap is exhibited by the specimens with relevant energies varying from 2.6 to 1.77 eV in this particle size range.
PACS: 78.66.Jg – Amorphous semiconductors; glasses; nanocrystalline materials / 61.46.+w – Clusters, nanoparticles, and nanocrystalline materials / 81.05.Ys – Nanophase materials
© EDP Sciences, 2000
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.