1：Experimental Design and Method Selection:

Thin films of Single-Walled Carbon Nanotubes were fabricated using spin-coating technique on transparent substrates. Optical properties were examined using Transmission, Raman, and Photoluminescence Spectroscopies.

2：Sample Selection and Data Sources:

Thin films were prepared from solutions containing 0.5, 1, and 2 mg of chiral (10,6) Single-Walled Carbon Nanotubes dispersed in aqueous sodium dodecyl sulfate solution.

3：5, 1, and 2 mg of chiral (10,6) Single-Walled Carbon Nanotubes dispersed in aqueous sodium dodecyl sulfate solution. List of Experimental Equipment and Materials:

3. List of Experimental Equipment and Materials: Bruker Senterra Raman microscope, Lambda 950 Perkin-Elmer UV/VIS/NIR Spectrometer, FluoroMax – 4P Horiba Spectrofluorometer, quartz substrates, sodium dodecyl sulfate (SDS), Single-Walled Carbon Nanotubes (Nanocyl, 70% purity).

4：Experimental Procedures and Operational Workflow:

Solutions were subjected to ultrasonic bath, then spin-coated on cleaned quartz substrates. Films were heated to remove water residues. Optical measurements were conducted at room temperature and at low temperatures for photoluminescence studies.

5：Data Analysis Methods:

Raman spectra were analyzed for RBM and G bands. Absorbance spectra were recalculated to absolute values. Photoluminescence spectra were analyzed for E22 and E33 transitions, and decay times were measured.