Ge solution is widely used in the semiconductor industry for the production of germanium-based devices, such as transistors and diodes, due to its excellent electrical properties. It is also utilized in the manufacturing of infrared optics, where germanium lenses and windows are essential components in thermal imaging systems. Additionally, Ge solution plays a critical role in fiber optics, enhancing signal transmission efficiency in communication networks. In the field of solar energy, it is employed in the development of high-efficiency solar cells, particularly in multi-junction photovoltaic systems. Furthermore, Ge solution is used in catalysis for various chemical reactions, improving process efficiency in industrial applications. Its application extends to the medical field, where it is incorporated into certain diagnostic imaging technologies.