Photonics of new metal-alkanoate composites contained semiconductor nanoparticles

Author

Lyashchova, A. ; Fedorenko, D. ; Klimusheva, G. ; Dmitruk, I. ; Bugaychuk, S. ; Mirnaya, T.

Author_Institution

Inst. of Phys., Kiev, Ukraine

fYear

2013

fDate

9-13 Sept. 2013

Firstpage

217

Lastpage

219

Abstract

The absorption and photoluminescence spectra of semiconductor CdS and CdSe nanoparticles (NPs) in cadmium alkanoates anisotropic glasses have been studied. NPs are chemically synthesized in thermotropic ionic liquid crystalline (TILC) smectic A phase of cadmium alkanoates which are used as nanoreactors. The glassy nanocomposites are obtained by rapid cooling the TILC to room temperature. In the new cadmium alkanoates matrices, the CdS and CdSe NPs have a small dispersion of their sizes, their shape is nearly spherical, they are stable over time, and they are ordered in glassy smectic A matrix. The thermo-optical nonlinearity of the cadmium octanoate nanocomposites contained CdSe NPs is characterized by extremely large values of the nonlinear refractive index, n₂, under relatively low-powered laser pulses.

Keywords

II-VI semiconductors; cadmium compounds; cooling; nanocomposites; nanofabrication; nanoparticles; optical glass; organometallic compounds; photoluminescence; refractive index; smectic liquid crystals; thermo-optical effects; visible spectra; wide band gap semiconductors; CdS; CdSe; absorption spectra; anisotropic glasses; glassy nanocomposites; low-powered laser pulses; metal-alkanoate composites; nanoreactors; nonlinear refractive index; photoluminescence spectra; photonics; rapid cooling; semiconductor nanoparticles; thermooptical nonlinearity; thermotropic ionic liquid crystalline smectic A phase; Absorption; Cadmium; Glass; Nanocomposites; Nonlinear optics; Optical pulses; Optical refraction;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Optoelectronics and Lasers (CAOL), 2013 International Conference on

Conference_Location

Sudak

ISSN

2160-1518

Print_ISBN

978-1-4799-0016-9

Type

conf

DOI

10.1109/CAOL.2013.6657584

Filename

6657584