Lattice-Reconstruction-Driven Modulation in Nonlinear Optical Responses of Small-Twist-Angle Bilayer MoS2
收藏科学数据银行2023-10-08 更新2026-04-23 收录
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资源简介：
We meticulously engineered a homogeneous bilayer structure featuring precisely defined interlayer twist angles by stacking monolayer single-crystal MoS2 in a controlled, layer-by-layer manner. Our research explores the intricate relationship between lattice reconstruction and linear and nonlinear spectroscopy by combining scanning tunneling microscopy (STM) and optical techniques. Twisted bilayer MoS2 samples with twist angles ranging from 1° to 4° were precisely prepared using the pick-up transfer method, and the resulting structures were thoroughly characterized. We revealed unexpected lattice reconstruction at twist angles of ≤ 2° and demonstrated its profound influence on the optical properties of the material.
提供机构：
Hunan University; Shanghai Institute of Optics and Fine Mechanics
创建时间：
2023-09-22
