论文标题
Mose2/WSE2异质结构的周期性潜力下的激子运输
Exciton Transport under Periodic Potential in MoSe2/WSe2 Heterostructures
论文作者
论文摘要
最近在实验中确认，通过堆叠两个晶格不匹配的过渡金属二甲化合物（TMD）单层形成的异质结构中的oir峰超级晶格的预测形成。 TMD异质结构中的这种周期性潜力是影响层间激子的能量传输和动力学（电子和空间浓缩在不同单层中）的扩散屏障。在这种情况下了解激子的运输对于将物质系统建立为下一代设备平台至关重要。在这项工作中，我们通过实验量化了六角形硼化硼（HBN）中层中层激素经历的扩散屏障（HBN），通过在各种温度下研究激子的运输，封装了二拟型硝化硼（HBN）。
The predicted formation of moire superlattices leading to confined excitonic states in heterostructures formed by stacking two lattice mismatched transition metal dichalcogenide (TMD) monolayers was recently experimentally confirmed. Such periodic potential in TMD heterostructure functions as a diffusion barrier that affects the energy transport and dynamics of interlayer excitons (electron and hole spatially concentrated in different monolayers). Understanding the transport of excitons under such condition is essential to establish the material system as a next generation device platform. In this work, we experimentally quantify the diffusion barrier experienced by the interlayer excitons in a hexagonal boron nitride (hBN) encapsulated, molybdenum diselenide tungsten/diselenide (MoSe2/WSe2) heterostructure by studying the exciton transport at various temperatures.
