Zobrazeno 1 - 10
of 16
pro vyhledávání: '"S. A. Empedocles"'
Publikováno v:
Physical Review Letters. 85:3301-3304
We find a correlation between the dynamics of fluorescence intermittency and spectral diffusion in the spectroscopy of single CdSe nanocrystal quantum dots (QD). A statistical analysis of the data suggests two populations of blinking events: blinking
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::92b3f7a68795de51694e0ce0f7311434
https://doi.org/10.1103/physrevlett.85.3301
https://doi.org/10.1103/physrevlett.85.3301
Autor:
S. A. Empedocles, Moungi G. Bawendi, C. A. Leatherdale, N. Y. Morgan, Marc Kastner, Cherie R. Kagan
Publikováno v:
Physical Review B. 62:2669-2680
We report measurements of photoconductivity and electric field induced photoluminescence quenching in three-dimensional close-packed solids of colloidal CdSe quantum dots. Our measurements suggest that photoexcited, quantum confined excitons are ioni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f800ac6e0e423fb6b00fb4d315cb03ed
https://doi.org/10.1103/physrevb.62.2669
https://doi.org/10.1103/physrevb.62.2669
Autor:
E. B. Hanlon, A. Marucci, Mildred S. Dresselhaus, P. Corio, S. D. M. Brown, G. Dresselhaus, S. A. Empedocles, Marcos A. Pimenta, Moungi G. Bawendi
Publikováno v:
Brazilian Journal of Physics v.30 n.2 2000
Brazilian Journal of Physics
Sociedade Brasileira de Física (SBF)
instacron:SBF
Brazilian Journal of Physics, Volume: 30, Issue: 2, Pages: 423-427, Published: JUN 2000
Brazilian Journal of Physics
Sociedade Brasileira de Física (SBF)
instacron:SBF
Brazilian Journal of Physics, Volume: 30, Issue: 2, Pages: 423-427, Published: JUN 2000
In this work we have studied the dispersion of the disorder-induced (D) and the second-order (G') Raman bands in single wall carbon nanotubes using several laser excitation energies (E laser) in the range 1.5-3.0 eV. An anomalous step-like behavior w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f3b5c6f5f03532baf83d7a4263a8ce8
https://doi.org/10.1590/s0103-97332000000200026
https://doi.org/10.1590/s0103-97332000000200026
Publikováno v:
Characterization of Nanophase Materials
We review some recent results in the spectroscopy of single CdSe nanocrystal quantum dots. By eliminating the effects of inhomogeneous broadening and ensemble averaging, single nanocrystal spectroscopy has revealed many new and previously unexpected
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20b870385987d2c868e7ce1324b44c7f
https://doi.org/10.1002/(sici)1521-4095(199910)11:15<1243::aid-adma1243>3.0.co
https://doi.org/10.1002/(sici)1521-4095(199910)11:15<1243::aid-adma1243>3.0.co
Publikováno v:
Nature. 399:126-130
A complete understanding of any complex molecular system generally requires a knowledge of the three-dimensional (3D) orientation of its components relative both to each other, and to directional perturbations such as interfaces and electromagnetic f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c55375f1e743204444db2cb7f468733
https://doi.org/10.1038/20138
https://doi.org/10.1038/20138
Autor:
Moungi G. Bawendi, S. A. Empedocles
Publikováno v:
The Journal of Physical Chemistry B. 103:1826-1830
We study the emission line shapes of single CdSe nanocrystallite quantum dots. Single dot line shapes are found to result from rapid spectral shifting of the emission spectrum rather than the intrinsic physics of the quantum dot. A strong dependence
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::606f3bdeee53bc419e7b23790b7b3788
https://doi.org/10.1021/jp983305x
https://doi.org/10.1021/jp983305x
Autor:
E. B. Hanlon, P. C. Eklund, A. Marucci, Apparao M. Rao, G. Dresselhaus, Moungi G. Bawendi, S. A. Empedocles, M. S. Dresselhaus, Richard E. Smalley, Marcos A. Pimenta
Publikováno v:
Physical Review B. 58:R16016-R16019
The anomalous resonant behavior of the tangential Raman modes of carbon nanotubes has been studied in the critical region of laser energies 1.7‐2.2 eV. The special enhancement of the Raman modes is explained by a model that takes into account the t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ca6f1fadaa362de1f03fd2fc755380e
https://doi.org/10.1103/physrevb.58.r16016
https://doi.org/10.1103/physrevb.58.r16016
Autor:
Moungi G. Bawendi, S. A. Empedocles
Publikováno v:
ChemInform. 30
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf2de4a3566255b5ca3b22d4155f8a76
https://doi.org/10.1002/chin.199928289
https://doi.org/10.1002/chin.199928289
Publikováno v:
ChemInform. 31
We review some recent results in the spectroscopy of single CdSe nanocrystal quantum dots. By eliminating the effects of inhomogeneous broadening and ensemble averaging, single nanocrystal spectroscopy has revealed many new and previously unexpected
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::446ad567b8cb5df629170b2ca8e87cb1
https://doi.org/10.1002/chin.200001258
https://doi.org/10.1002/chin.200001258
Autor:
C. A. Leatherdale, Wing-Keung Woo, Moungi G. Bawendi, S. A. Empedocles, Ken T. Shimizu, Robert Neuhauser
Publikováno v:
Physical Review B. 63
Statistical studies of fluorescence intermittency in single CdSe nanocrystal quantum dots (QD's) reveal a temperature-independent power-law distribution in the histogram of on and off times---the time periods before the QD turns from emitting to none
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cbe8cb4242ee0c20cdfceb6f3fce19b6
https://doi.org/10.1103/physrevb.63.205316
https://doi.org/10.1103/physrevb.63.205316