| dc.description.abstract | Dye-sensitized solar cells (DSCs) have significant development potential due to their numerous advantages, including simple manufacturing processes, low production costs, and a wide variety of colors. However, the color of DSC components cannot be adjusted once the assembly is completed, which may pose a problem for applications such as photovoltaic windows. This study synthesizes photochromic complex dyes and organic dyes for use in DSC components, aiming to impart photochromic properties to the sensitized DSC components. The complex dyes incorporate the iPr-pySO (2-(propane-2-sulfinylmethyl)- pyridine) ligand, which contains an S=O bond, as an auxiliary ligand. The synthesized dyes, PC-3-Cl and PC-3-NCS, when dissolved in DMF at a concentration of 10-4 M, exhibited increased absorption and a color change from orange or yellow to dark brown after being exposed to a 10 W, 365 nm light source for 20 minutes. Additionally, the photoelectric conversion efficiency of the DSC assembled with PC-3-Cl as the photosensitizer improved from 1.25% to 1.63% after 8 minutes of light exposure. However, the photoelectric conversion efficiency of the DSC assembled with PC-3-NCS as the photosensitizer decreased from 3.16% to 2.44% after 9 minutes of exposure to a 10 W, 365 nm light source. The organic dyes NW-1 and NW-2 use BT (benzothiadiazole) and BTA (benzotriazole) units as auxiliary acceptors (Aa) in a D-Aa-π-A structure. For organic dye NW-1, when dissolved in toluene at a concentration of 2⨯10-4 M and exposed to a 10 W, 365 nm light source for 10 minutes, the dye solution color changed from bright orange to dark orange, but the absorption spectrum did not change, indicating that NW-1 doesn’t possess photochromic properties. The photoelectric conversion efficiency of the DSC assembled with NW-1 as the photosensitizer was only 0.71%. | en_US |