1：Experimental Design and Method Selection:

The study involves synthesizing SDS/PVDF composite thin films via solution casting to achieve high dielectric properties and electroactive β-phase. The SCPPC is fabricated by integrating the high dielectric film with a ZnO NPs-Eosin Y-PVP dye film as the photoelectron generator. The design rationale is to combine energy harvesting and storage in a single unit.

2：Sample Selection and Data Sources:

Materials include PVDF pellets, SDS, PVP, ZnO nanoparticles, ortho-phosphoric acid, Eosin Y, and FTO coated glass. Samples are prepared with varying SDS concentrations (1-25 mass%) in PVDF.

3：List of Experimental Equipment and Materials:

Equipment includes X-ray diffractometer (Model-D8, BrukerAXS Inc), FTIR spectrometer (FTIR-8400S, Shimadzu), DSC (DSC-60, Shimadzu), FESEM (INSPECT F50), digital LCR meter (Agilent, E4980A), digital multi-meter (Agilent U1252A), and electrometer (Keysight-B2985A). Materials are as listed in section 2.

4：Experimental Procedures and Operational Workflow:

1. 4. Experimental Procedures and Operational Workflow: SDS/PVDF films are synthesized by dissolving PVDF in DMSO, adding SDS, stirring, sonicating, and drying. SCPPC fabrication involves casting the dye solution on FTO, placing the storage film on Al foil, and connecting electrodes. Characterization includes XRD, FTIR, DSC, FESEM, dielectric measurements, and device performance testing under light illumination and dark conditions.

5：Data Analysis Methods:

Data analysis involves calculating β-phase fraction using FTIR absorbance, dielectric properties using LCR meter data, and device parameters like capacitance, energy density, and efficiencies using specified equations.