1：Experimental Design and Method Selection:

The study focuses on the synthesis and characterization of naphthalene diimide (NDI) based hydrogels for smart window applications. The methodology includes the synthesis of the gelator, formation of solutions and gels, and characterization using various techniques.

2：Sample Selection and Data Sources:

Solutions and gels were prepared using NDI functionalized with a dipeptide, GlyPhe, in water or water/glycerol mixtures. The samples were characterized using cryo-TEM, SANS, UV-Vis absorption spectroscopy, rheology, and spectroelectrochemistry.

3：List of Experimental Equipment and Materials:

Equipment includes a FEI Tecnai 12 TWIN TEM for cryo-TEM, D33 instrument at ILL for SANS, Cary 60 UV-Vis spectrophotometer, Anton Paar Physica 301 rheometer, and a PalmSens4 potentiostat for electrochemical measurements.

4：Experimental Procedures and Operational Workflow:

The gelator was synthesized and dissolved in NaOH aqueous solution, then mixed with water/glycerol. Gels were formed by acidification using glucono-δ-lactone (GdL). The photochromic and electrochromic responses were evaluated under UV irradiation and electrochemical stimulation, respectively.

5：Data Analysis Methods:

Data from SANS were fitted using SasView software. UV-Vis spectra were analyzed for absorption peaks indicative of radical anion formation. Rheological data were analyzed for storage and loss moduli.