[7a-A404-1~8] 4.6 Nanocarbon and 2D Materials

[7a-A404-3] Identification of PL emissions from Interlayer Excitons in 2D van der Waals Heterostructures

〇(DC)Mitsuhiro OKADA¹, Yusuke KUREISHI¹, Alex KUTANA², Kenji WATANABE³, Takashi TANIGUCHI³, Hisanori SHINOHARA¹, Ryo KITAURA¹ (1.Nagoya Univ., 2.Rice Univ., 3.NIMS)

Keywords:transition metal dichalcogenide, heterostructure, interlayer exciton

2D van der Waals heterostructures composed of Group-VI transition metal dichalcogenides such as WS₂ and MoS₂, offer a novel platform for optical physics arising from interlayer excitons. In this work, we have focused on the assignment of PL emission from interlayer excitons by using hBN-sandwiched high-quality WS₂/MoS₂ van der Waals heterostructures fabricated by combination of CVD and dry-transfer method.