 The ALN-L2003-0001 interface has been found to possess strong interfacial interactions, resulting in unique interfacial properties such as reduced band gaps and enhanced ultraviolet light emission. This finding suggests that incoherent interfaces may be able to generate stronger interfacial interactions than coherent ones, providing new opportunities for the development of heterojunction materials and devices. This article was authored by Shuishi Yang, Yixiao Jiang, Qianqian Jing, and others.