Turyanska, Lyudmila, Blokland, J. H., Elfurawi, U. , Makarovsky, O., Christianen, P. C. M. and Patane, A. (2010) Photoluminescence of PbS nanocrystals at high magnetic fields up to 30 T. Physical Review B, 82 (19). ISSN 1098-0121
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| Item Type: | Article |
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| Item Status: | Live Archive |
Abstract
We use magnetic fields up to 30 T to study the circularly polarized magneto-photoluminescence (PL) of colloidal PbS nanocrystals. A semiclassical model for the population of polarized excitons is used to account for the measured magnetic field and temperature dependence of the degree of circular polarization of the PL emission and to probe the g factor, g X, of the exciton. We report a systematic dependence of g X on the nanocrystal size with values that increase from 0.1 to 0.3 at low temperature (T<10K) with decreasing the nanocrystal diameter from 9 to 4 nm. © 2010 The American Physical Society.
| Keywords: | magneto-photoluminescience, quantum dots, colloidal nanoparticles, Semiconductors, PbS, exciton g-factor |
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| Subjects: | F Physical Sciences > F300 Physics |
| Divisions: | College of Science > School of Chemistry |
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| ID Code: | 22523 |
| Deposited On: | 06 Apr 2016 15:36 |
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