Dye-sensitized solar cells (DSSCs) represent a field of intensive study in recent years, focusing on the development of low-cost, environmentally friendly materials. The objective of this study is to produce environmentally friendly, low-cost dye-sensitized solar cells using amino acids. In this research study, the applications of the "Ruhemann's Purple" compound, otherwise known as the glycine-ninhydrin test, which is used to determine the presence of amino acids, were carried out in DSSCs. The formation and characterization of complexes of the glycine-ninhydrin compound with Cu, Fe, and Co metals were conducted using UV-Vis spectroscopy. In addition to the J-V curves, Nyquist-type impedance curves were employed for the characterization of the prepared solar cells. The conversion efficiencies of the Cu, Fe, and Co complex-based solar cells were found to be 0.36%, 0.26%, and 1.53%, respectively. Furthermore, this study also involved the synthesis of TiO2 nanoparticles as DSSC photoanodes via the hydrothermal method, along with XRD and FE-SEM characterization. The results of this study indicate the potential for the use of glycine in DSSCs, with promising implications for their future applications.,[GRAPHICS]