Chemical bath deposition of CdSe and CdS nanocrystalline films: Tailoring of morphology, optical properties and carrier dynamics

Nemec, P. (Faculty of Mathematics and Physics, Charles University in Prague); Simurda, M.; Nemec, I.; Formanek, P.; Nemcova, Y.; Sprinzl, D.; Trojanek, F.; Maly, P.

Source: Physica Status Solidi (A) Applications and Materials, v 205, n 10, October, 2008, p 2324-2329

ISSN: 1862-6300

Publisher: Wiley-VCH Verlag

Abstract: We review the results of our research towards tailoring morphology and optical properties of films consisting of closely-spaced nanocrystals of CdSe and CdS whose optical band-gap can be tuned to cover the whole visible spectral range. On basis of the obtained results, in particular of photoexcited carrier dynamics, we have proposed a microscopic model that describes well the optical properties of the films. We have also showed that the spin relaxation of electrons in these nanocrystalline films is different than that in mutually isolated nanocrystals of the same size. © 2008 WILEY-VCH Verlag GmbH and Co. KGaA. (28 refs.)

terms:  Optical films  -  Cadmium alloys  -  Cadmium compounds  -  Chemical properties  -  Civil aviation  -  Dynamics  -  Nanocrystalline alloys  -  Nanocrystalline materials  -  Nanocrystals  -  Nanostructured materials  -  Nanostructures  -  Optical materials  -  Optical properties  -  Semiconducting cadmium compounds