Abstract
Resonant Raman scattering (RRS) was used to probe the electronic states of CdS nanowires (∼10 nm diameter) grown by chemical vapor deposition. Individual Ar+ laser lines were used to vary the excitation energy while observing scattering from CdS phonons; strong 1-longitudinal optical (LO) and 2-LO Raman resonances were readily observed within the broader photoluminescence emission. The energy separation between the peaks of the 1-LO and 2-LO resonance was found to be 34 meV, in good agreement with bulk values. These results demonstrate that RRS is a powerful tool for probing the electronic and vibrational properties of semiconductor nanowires.
Original language | English (US) |
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Article number | 043118 |
Pages (from-to) | 1-3 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 88 |
Issue number | 4 |
DOIs | |
State | Published - 2006 |
Funding
The authors acknowledge equipment support of the National Science Foundation through Grant Nos. DMR 0071797 and 0216374, and operating support from the University of Cincinnati. This work was partially supported by the Petroleum Research Fund of the American Chemical Society and Northwestern University. One of the authors (J.L.L.) acknowledges the support of a National Science Foundation Graduate Research Fellowship.
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)