Figure 10. The plots of (αhν)1/2 versus hν for Pure PMMA polymer film and Solochrome Dark Blue dye - doped polymer films at different dye concentrations

From

Investigation of Optical Properties of Solochrome Dark Blue Dye Doped Polymer Films

Imad Al - Deen Hussein Ali Al - Saidi, Raghad Jabar

Journal of Materials Physics and Chemistry. 2017, 5(1), 32-38 doi:10.12691/jmpc-5-1-4