1.As a byproduct in the production of triple junction gallium arsenide solar cells, the efficiency is comparable to that of model solar cells, and the cost is much lower than that of model solar cells. The advantages of heterotypic solar cells are also reflected in flexible layout and the ability to output various bus voltages on small modules.
2: There are two specifications: triangular and trapezoidal. The packaging of triangular solar cells can only use commercial SMT, while trapezoidal solar cells can use SMT or universal resistance welding technology for space solar cells.