Cyclododecane-based high-intactness and clean transfer method for fabricating suspended two-dimensional materials.

ABSTRACT: The high-intactness and ultraclean fabrication of suspended 2D materials has always been a challenge due to their atomically thin nature. Here, we present a universal polymer-free transfer approach for fabricating suspended 2D materials by using volatile micro-molecule cyclododecane as the transfer medium, thus ensuring the ultraclean and intact surface of suspended 2D materials. For the fabricated monolayer suspended graphene, the intactness reaches 99% for size below 10 µm and suspended size reaches 36 µm. Owing to the advantages of ultra-cleanness and large size, the thermal conductivity reaches 4914 Wm-1K-1 at 338 K. Moreover, this strategy can also realize efficient batch transfer of suspended graphene and is applicable for fabricating other 2D suspended materials such as MoS₂

SUBMITTER: Wang Z 

PROVIDER: S-EPMC11322315 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature