1：Experimental Design and Method Selection:

The study uses liquid-phase exfoliation to prepare films, X-ray photoelectron spectroscopy for band alignment measurement, and Z-scan technique with a femtosecond laser for nonlinear optical property analysis. Theoretical models include a four-level energy model with Runge-Kutta algorithm and first-principles calculations.

2：Sample Selection and Data Sources:

MoTe2 and MoS2 powders are used to create nanocomposite films via sonication and centrifugation. Data is sourced from experimental measurements and computational simulations.

3：List of Experimental Equipment and Materials:

Equipment includes XPS (Thermo Fisher ESCALAB 250Xi), Z-scan system with Ti:sapphire femtosecond laser, sonicator (Qsonica Q700), centrifuge (Centurion Scientific K241), vacuum filtration setup with membranes (pore size 0.22 μm, Tianjin Jinteng Co. Ltd.), TEM, AFM, UV-Vis spectrometer, Raman spectrometer. Materials include MoTe2 powder, MoS2 powder, isopropanol, deionized water, glass substrates.

4：22 μm, Tianjin Jinteng Co. Ltd.), TEM, AFM, UV-Vis spectrometer, Raman spectrometer. Materials include MoTe2 powder, MoS2 powder, isopropanol, deionized water, glass substrates. Experimental Procedures and Operational Workflow:

4. Experimental Procedures and Operational Workflow: Powders are dispersed and sonicated, supernatants are centrifuged, films are prepared by vacuum filtration and transferred to substrates. Band alignment is measured with XPS, nonlinear properties with Z-scan, and structural analysis with TEM, AFM, UV-Vis, and Raman spectroscopy.

5：Data Analysis Methods:

Data is analyzed using fitting algorithms for Z-scan curves, rate equations with Runge-Kutta for carrier dynamics, and first-principles calculations for band structure.