Investigation of Dynamic Dichroism Properties of Disperse Orange 11 Molecules and Azo-Molecules Doped in Poly(Methyl Methacrylate) Thin Films: A Comparison

• Authors: B. Abbas , M. Alshikh Khalil
• Languages of publication: EN

Abstracts

EN

We investigate the dichroism characteristics of poly (methyl methacrylate) PMMA thin films doped with DO11, DO3, DSR13 and DSR1 dye molecules, which change under illumination with visible light. Our data show that photoisomerisation, phototautomerization reactions and light-induced polar orientation are dependent on the molecular structure of the polymer. Polar structure and molecular size, as well as the chemical structure of PMMA host, are the dominant parameters that determine both the extent and speed of dichroism buildup and relaxation processes. Two forms of DO11 molecules (keto and enol forms), and two other forms of azo-based dyes ( trans and cis forms) are responsible for the interaction with irradiating laser light and forming an anisotropic structure inside the PMMA/dye thin films.

Keywords

EN

33.55.+b; 78.20.e; 78.66.Qn

Discipline

• 78.66.Qn: Polymers; organic compounds
• 33.55.+b: Optical activity and dichroism

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2010
• Volume: 117
• Issue: 6
• Pages: 904-910

Dates

published

2010-06

received

2010-01-20

(unknown)

2010-02-26

Contributors

author

B. Abbas

• Atomic Energy Commission, P.O. Box 6091, Damascus, Syria

author

M. Alshikh Khalil

• Atomic Energy Commission, P.O. Box 6091, Damascus, Syria

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Identifiers

DOI

10.12693/APhysPolA.117.904