Moiré superlattices are formed by a lattice mismatch or twist angle in two-dimensional materials, which can generate periodical moiré potentials leading to strong changes in the band structure, resulting in new quantum phenomena. However, the experimental engineering of in-situ deformation of moiré heterostructures remains deficient. Here, we demonstrate a dynamic local deformation of the twisted heterostructures using a diamond anvil cell (DAC), enabling in-situ dynamic modulation of moiré potential in twisted WS₂—WSe₂ heterostructures at room temperature. Deformation of the twisted heterostructure increases the moiré potential, causing a red shift of the moiré exciton resonance, and observed the red shift of the intralayer exciton resonance up to 16.3 meV (less than 1.1 GPa). The blue shift of the interlayer excitons of twisted WS₂—WSe₂ heterostructures shows an evident transition of the pressure sensitive exciton, induced by the dominant effect of modifying the band structure on optical properties. Combined with the spectral changes of pressurized Raman, which further demonstrated that the DAC can efficiently regulate the interlayer coupling. Our results offer an effective strategy for in-situ dynamic modulation of moiré potential, providing a promising platform for the development of novel quantum devices.

莫尔超晶格是由二维材料中的晶格失配或扭曲角形成的，会产生周期性的莫尔势，导致能带结构发生强烈变化，从而产生新的量子现象。然而，莫尔异质结构原位变形的实验工程仍然不足。在这里，我们使用金刚石砧单元 (DAC) 演示了扭曲异质结构的动态局部变形，从而能够在扭曲的 WS ₂ -WSe _{2中实现莫尔电位}的原位动态调制室温下的异质结构。扭曲异质结构的变形增加了莫尔电位，导致莫尔激子共振红移，观察到层内激子共振红移高达16.3 meV（小于1.1 GPa）。_{扭曲的WS 2} -WSe ₂异质结构的层间激子的蓝移显示了压敏激子的明显转变，这是由改变能带结构对光学性质的主要影响引起的。结合加压拉曼光谱的变化，进一步证明了DAC可以有效调节层间耦合。我们的结果为现场提供了有效的策略莫尔电位的动态调制，为新型量子器件的开发提供了一个有前景的平台。