Why do you need lattice matching of heterojunction?

For fear of negative effects, lattice matching of heterojunction is needed. According to the relevant published data, if the lattice constants of the two materials are quite different when growing heterojunction, it will lead to lattice mismatch, lattice defects and deformation, which will have a negative impact on the performance and stability of heterojunction. Therefore, in the design and growth of heterojunction, it is necessary to choose the appropriate material combination and adjust the growth conditions to ensure that the lattice constants of the two materials are close to or match, so as to achieve higher quality heterojunction materials.