Size effects in CdS-nanocrystal doped glasses: luminescence under single-electron and plasma excitation

Saulius Jursenas; G. Kurilcik; M. Strumskis; Arturas Zukauskas

doi:10.1117/12.266553

4 February 1997 Size effects in CdS-nanocrystal doped glasses: luminescence under single-electron and plasma excitation

Saulius Jursenas, G. Kurilcik, M. Strumskis, Arturas Zukauskas

Proceedings Volume 2967, Optical Inorganic Dielectric Materials and Devices; (1997) https://doi.org/10.1117/12.266553
Event: International Conference on Advanced Optical Materials and Devices, 1996, Riga, Latvia

Abstract

Near-to-bandgap luminescence has been studied in bulk-like CdS nanocrystals as a function of the average radii ranging above the exciton Bohr radius (from 3.3 nm to 100 nm). The surface recombination was shown to be the main recombination route under experimental conditions. Comparing the size dependences of the luminescence under high and low excitation, a striking increase in the luminescence intensity of nanocrystals with one excited electron-hole pair was discovered for average radii below 10 nm. The small-volume enhanced bimolecular recombination was shown to account for the observed data.

Citation Download Citation

Saulius Jursenas, G. Kurilcik, M. Strumskis, and Arturas Zukauskas "Size effects in CdS-nanocrystal doped glasses: luminescence under single-electron and plasma excitation", Proc. SPIE 2967, Optical Inorganic Dielectric Materials and Devices, (4 February 1997); https://doi.org/10.1117/12.266553

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