Nonlinear optical properties of semiconductor quantum dots and organic molecules in glasses prepared by the sol-gel method

Renata Reisfeld

doi:10.1117/12.132047

7 December 1992 Nonlinear optical properties of semiconductor quantum dots and organic molecules in glasses prepared by the sol-gel method

Renata Reisfeld

Author Affiliations +

Proceedings Volume 1758, Sol-Gel Optics II; (1992) https://doi.org/10.1117/12.132047
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

Nonlinear behavior of glasses and especially thin films prepared by the sol-gel method make these materials an interesting class for optoelectronic devices especially when connected with their wave guide properties. From theoretical point of view these materials provided models for three-dimensional quantum confinement and allow identification ofthe energy ofthe excited states. These energy states ofthe quantum dots are positioned between the discrete energy levels of the atoms or bands of molecules and the broad band of the condensed phase. We describe the preparation of glasses doped by fluorescein, acridine and methyl-orange and discuss the origin of their nonlinear properties. Preparation of glass films doped by CdS and CuC1 quantum dots are also presented and their properties analyzed. The relation between the energies of the electronic states and size of the particles are discussed.

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Renata Reisfeld "Nonlinear optical properties of semiconductor quantum dots and organic molecules in glasses prepared by the sol-gel method", Proc. SPIE 1758, Sol-Gel Optics II, (7 December 1992); https://doi.org/10.1117/12.132047

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