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(a) Absorbance of PDDA(PSS-PDAMA)m + (PSS-PAH)n films as a function of the number of layers (■, m = 5; , m = 7; and , m = 9). The final number of the (PSS-PAH)n layers was 14 for all the films; (b) absorbance of (PDDA-PDAMA)m+(PAH-PSS)n films as a function of the number of (PAH-PSS)n layers (■, m = 3; , m = 5; and , m = 7). The plots for the absorbance of the (PDDA-PDAMA)m layers are omitted for clarity.
