Electro-absorption of an ensemble of close-packed CdSe quantum dots

Leonid I. Gurinovich; Mikhail V. Artemyev

doi:10.1117/12.468987

29 May 2002 Electro-absorption of an ensemble of close-packed CdSe quantum dots

Leonid I. Gurinovich, Mikhail V. Artemyev

Proceedings Volume 4748, ICONO 2001: Fundamental Aspects of Laser-Matter Interaction and Physics of Nanostructures; (2002) https://doi.org/10.1117/12.468987
Event: XVII International Conference on Coherent and Nonlinear Optics (ICONO 2001), 2001, Minsk, Belarus

Abstract

Highly monodisperse CdSe quantum dots 1.8 nm in size were synthesized capped with surface monolayer of 1-thioglycerol. The optical absorption of thin films of matrix free close- packed and isolated in PMMA matrix quantum dots was studied at various electric field biases. The broadening and red shift of optical transitions in close-packed ensemble against isolated is attributed to the formation of collective electronic submini-bands between interacting nanocrystals. The reversible collapse of collective electronic subminibands has been achieved by applying of strong electric field to the thin film of close-packed quantum dots.

Citation Download Citation

Leonid I. Gurinovich and Mikhail V. Artemyev "Electro-absorption of an ensemble of close-packed CdSe quantum dots", Proc. SPIE 4748, ICONO 2001: Fundamental Aspects of Laser-Matter Interaction and Physics of Nanostructures, (29 May 2002); https://doi.org/10.1117/12.468987

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