1：Experimental Design and Method Selection:

The study involved the synthesis of plasmonic mesoporous core-shell Ag-Au@TiO2 nanocomposites by seed-mediated growth of Ag shell onto Au decorated TiO2. The nanocomposites were then used as photoanodes in DSSCs to evaluate their performance.

2：The nanocomposites were then used as photoanodes in DSSCs to evaluate their performance. Sample Selection and Data Sources:

2. Sample Selection and Data Sources: Mesoporous TiO2 microspheres were synthesized and functionalized with primary amine groups for Au nanoparticle decoration. Ag shell was then grown onto the Au@TiO2 substrates.

3：List of Experimental Equipment and Materials:

Equipment included a scanning electron microscope (SEM, FEI, Quanta 200 FEG), surface area and pore size analyzer (Quantachrome, Nova 2200E), X-ray photoelectron spectroscopy (XPS), and Rigaku Miniflex 600 Table Top Powder X-ray diffractometer. Materials included titanium isopropoxide, HAuCl4, AgNO3, and N719 dye.

4：Experimental Procedures and Operational Workflow:

The synthesis involved solvothermal treatment for TiO2 microspheres, functionalization with APTES, Au nanoparticle decoration, and Ag shell growth. DSSCs were fabricated using these photoanodes, and their performance was evaluated under natural sunlight.

5：Data Analysis Methods:

The performance of DSSCs was analyzed using photocurrent-voltage (J-V) characteristics and electrochemical impedance spectroscopy (EIS).