Study the effective addition of coumarin dye on the optical properties of poly (methyl meth acrylate)

The effect of adding different volume of coumarin dye (5, 15, 25 and 35) ml on optical properties of Poly (Methyl Meth Acrylate) was studied. Films of pure PMMA and PMMA with different volume of coumarin dye (5, 15, 25 and 35) ml were prepared using the casting technique. Transmission and absorption...

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Bibliographic Details
Main Authors: Neamah, Zainab J., Jasim, Kareem A., Ahmed, Balqees A.
Format: Conference Proceeding
Language:English
Subjects:
Absorptivity
Coumarin
Dyes
Energy gap
Optical properties
Polymethyl methacrylate
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Summary:The effect of adding different volume of coumarin dye (5, 15, 25 and 35) ml on optical properties of Poly (Methyl Meth Acrylate) was studied. Films of pure PMMA and PMMA with different volume of coumarin dye (5, 15, 25 and 35) ml were prepared using the casting technique. Transmission and absorption of the films were measured by using UV-VIS spectrometer technique type (100 Conc), in order to assess the type of transmission which was found an indirect transition. An optical energy gap of pure PMMA is (4.95e v) and after adding coumarin with volume (25, 35) ml, the energy gap for PMMA decrease by (0.05) compere to pure PMMA films and addition energy gap appear equal to (4.1 e v). It was found that the absorption coefficient, extinction coefficient and dielectric constants increasing by addition coumarin.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0093081