Title:

Linear and nonlinear optical spectroscopy of CdS nanoparticles in Nafion membranes , Journal of Telecommunications and Information Technology, 2000, nr 1,2

Group publication title:

2000, nr 1-2, JTIT-artykuły

Creator:

Henari, Fryod Z. ; Bourdin, Emmanuel ; Blau, Werner J. ; Kelly, John M.

Subject and Keywords:

optical spectroscopy ; Nafion membranes ; CdS nanoparticles

Description:

kwartalnik

Abstrakt:

CdS nanoparticles embedded in Nafion membranes were studied by a vartiety of optical spectroscopic methods. Quantum confinement was achieved (particle mean diameter of 40A) and the growth was found to follow a linear temporal kinetic law. Discrete energy levels were observable, even at room temperature. They could be attributed to light hole and heavy hole 1S and 2S transitlons.The experimental results are in good agreement with theoretical calculations of light hole and heavy hole masses in the cases of cubic CdS. An enhancement of the nonlinear susceptibility x(3) at the quantized excition energy levels was observed. The clusters were found to be photo-unstable, with a diffusion-limited growth rate due to Ostwald ripening.

Publisher:

Instytut Łączności - Państwowy Instytut Badawczy, Warszawa

Date:

2000, nr 1,2

Resource Type:

artykuł

Format:

application/pdf

Resource Identifier:

ISSN 1509-4553, on-line: ISSN 1899-8852

DOI:

10.26636/jtit.2000.1-2.16

ISSN:

ISSN 1509-4553, on-line: ISSN 1899-8852

Source:

Journal of Telecommunications and Information Technology

Language:

ang

Rights Management:

Biblioteka Naukowa Instytutu Łączności