Tuning the Optical and Dielectric Features of PMMA/ZnMoO₄+MoO₃/TMAI Composite Polymer by Using LiTFSI for Flexible Optoelectronic and Energy Capacitance Purposes

This work seeks to synthesize advanced nanocomposite films utilizing poly-methyl methacrylate (PMMA) infused with a ZnMoO 4 +MoO 3 nanocomposite, tetramethylammonium iodide (TMAI), and lithium bis(trifluoromethane) sulfonimide (LiTFSI) for applications in several cutting-edge energy and optoelectronic domains. The optical, morphological, structural, and dielectric attributes of PMMA/ZnMoO 4 +MoO 3 /TMAI/x wt%LiTFSI polymers are analyzed. The findings indicated that the doped polymers containing TMAI had significant absorption across the UVA, UVB, and UVC ranges. The direct and indirect energy gap values diminished after PMMA was infused with ZnMoO 4 +MoO 3 and/or TMAI or LiTFSI. In the UV range, the doped polymer including ZnMoO 4 +MoO 3 /TMAI exhibited the uppermost refractive index ( n ) values, but in the visible range, the PMMA/ZnMoO 4 +MoO 3 /TMAI/0.2 wt%LiTFSI polymer demonstrated the greatest n values. Doped polymers have elevated optical dielectric values in the visible spectrum relative to pure PMMA. All doped polymers exhibited peak values for all nonlinear optical parameters within the visible spectrum. The fluorescence intensity of doped PMMA was generally augmented by the integration of ZnMoO 4 +MoO 3 /TMAI/x wt%LiTFSI. Polymer with x = 0.3 demonstrated the ultimate dielectric constant ( ε ′) values. The energy density value reaches its peak value when PMMA is infused with TMAI. The doped polymers containing ZnMoO 4 +MoO 3 and/or TMAI exhibited the maximum capacitance.