Moiré superlattices offer an unprecedented opportunity for tailoring interactions between quantum particles^{1,2,3,4,5,6,7,8,9,10,11} and their coupling to electromagnetic fields^{12,13,14,15,16,17,18}. Strong superlattice potentials generate moiré minibands of excitons^16,17,18—bound pairs of electrons and holes that reside either in a single layer (intralayer excitons) or in two separate layers (interlayer excitons). Twist-angle-controlled interlayer electronic hybridization can also mix these two types of exciton to combine their strengths^13,19,20. Here we report the direct observation of layer-hybridized moiré excitons in angle-aligned WSe₂/WS₂ and MoSe₂/WS₂ superlattices by optical reflectance spectroscopy. These excitons manifest a hallmark signature of strong coupling in WSe₂/WS₂, that is, energy-level anticrossing and oscillator strength redistribution under a vertical electric field. They also exhibit doping-dependent renormalization and hybridization that are sensitive to the electronic correlation effects. Our findings have important implications for emerging many-body states in two-dimensional semiconductors, such as exciton condensates²¹ and Bose–Hubbard models²², and optoelectronic applications of these materials.

莫尔超晶格为量子粒子^{1,2,3,4,5,6,7,8,9,10,11}及其与电磁场的耦合^{12,13,14,15,16,17}之间的相互作用提供了前所未有的机会^，18。强的超晶格势能产生激子^{16、17、18的}莫尔条纹微带，这些电子和空穴对成对存在于单层（层内激子）或两个单独的层（层间激子）中。扭转角控制的层间电子杂交也可以将这两种类型的激子混合起来以结合它们的强度^13,19,20。在这里，我们报告了在角度对准的WSe ₂ / WS ₂和MoSe ₂ / WS中层混合莫尔激子的直接观察通过光反射光谱法测定_2个超晶格。这些激子在WSe ₂ / WS _2中表现出强耦合的标志性特征，即在垂直电场下的能级反交叉和振荡器强度重新分布。它们还表现出对电子相关效应敏感的依赖于掺杂的重归一化和杂交。我们的发现对二维半导体中新兴的多体态具有重要意义，例如激子冷凝物²¹和Bose-Hubbard模型²²以及这些材料的光电应用。