1：Experimental Design and Method Selection:

The study involves the fabrication of carbon front electrodes (CFE) and carbon counter electrodes (CCE) for C-DSSC. CFE was fabricated using a wet laid web method, and CCE was dip-coated with graphene ink. TiO2 nanorods (P25-R) were synthesized via hydrothermal technique for deposition over CFE.

2：Sample Selection and Data Sources:

Carbon fiber wetlaid web sheets and graphene oxide nanosheets were used as primary materials.

3：List of Experimental Equipment and Materials:

Conductive transparent fluorinated tin oxide glass (FTO TEC 8, Pilkington Co), carbon short-cut fiber (CF, 7 μm x 6 mm, PAN type, Toray Chem.), Poly(ethyleneimine) binder, P25 (25 nm sized, Degussa Co.), sodium hydroxide (NaOH), graphene ink synthesized from graphite powder, and polyvinylidene difluoride (PVDF) for the spacer.

4：Experimental Procedures and Operational Workflow:

Fabrication of CFE with varying carbon fiber content, synthesis of TiO2 nanorods, fabrication of Gr@CCE by dip-and dry coating technique, and assembly of C-DSSC with PVDF membrane spacer.

5：Data Analysis Methods:

Characterization included UV-1650PC spectrophotometer for light transmission spectra, four-point probe head system for sheet resistance, FE-SEM for surface morphology, XRD for crystal structure, CV and EIS for electrocatalytic performance, and solar simulator for photovoltaic performance.