Journal
JOURNAL OF THE EUROPEAN OPTICAL SOCIETY-RAPID PUBLICATIONS
Volume 8, Issue -, Pages -Publisher
SPRINGEROPEN
DOI: 10.2971/jeos.2013.13042
Keywords
CdSe-CdS core-shell nanocrystal; FEM model; carrier distribution; electron-hole recombination energy; nanobone
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Funding
- Academy of Finland
- ADOPT-Linne center of advanced Optics and Photonics (Sweden)
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We report a model on core-shell heterostructured nanocrystals with CdSe as the core and CdS as the shell. The model is based on one-band Schrodinger equation. Three different geometries, nanodot, nanorod, and nanobone, are implemented. The carrier localization regimes with these structures are simulated, compared, and analyzed. Based on the electron and hole wave functions, the carrier overlap integral that has a great impact on stimulated emission is further investigated numerically by a novel approach. Furthermore, the relation between the nanocrystal size and electron-hole recombination energy is also examined.
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