Electron correlation plays an essential role in the macroscopic quantum phenomena in the moiré heterostructure, such as antiferromagnetism and correlated insulating phases. Unlike the phenomena where the interaction involves only electrons in one layer, the interaction of distinct phases in two or more layers represents a new horizon forward, such as the one in the Kondo lattice model. Here, using interlayer excitons as a probe, we show that the interlayer interactions in heterobilayers of tungsten diselenide and molybdenum disulfide (WSe₂/MoS₂) can be electrically switched on and off, resulting in a layer-dependent correlated phase diagram, including single-layer, layer-selective, excitonic-insulator and layer-hybridized regions. We demonstrate that these correlated phases affect the interlayer exciton non-radiative decay pathways. These results reveal the role of strong correlation on interlayer exciton dynamics and pave the way for studying the layer-resolved strong correlation behaviour in moiré heterostructures.

电子关联在​​莫尔异质结构的宏观量子现象中起着至关重要的作用，例如反铁磁性和相关绝缘相。与相互作用仅涉及一层中的电子的现象不同，两层或更多层中不同相的相互作用代表了一个新的视野，例如 Kondo 晶格模型中的视野。在这里，我们使用层间激子作为探针，展示了二硒化钨和二硫化钼 (WSe ₂ /MoS _{2 )异质双层中的层间相互作用}) 可以电开和关，从而产生依赖于层的相关相图，包括单层、层选择性、激子绝缘体和层杂化区域。我们证明这些相关相会影响层间激子非辐射衰变路径。这些结果揭示了强关联对层间激子动力学的作用，并为研究莫尔异质结构中的层分辨强关联行为铺平了道路。