[H-3] Characterization II: Low Dimensional Devices and Materials

[H-3-02] Experimental Study on Suspended Trapezoid Graphene for Thermal Rectification

〇Fayong Liu¹, Jiayu Guo¹, Yoshiki Ozono¹, Shinichi Ogawa², Yukinori Morita², Manoharan Muruganathan¹, Hiroshi Mizuta¹ (1. Japan Advanced Institute of Science and Technology (Japan), 2. National Institute of Advanced Industrial Science and Technology (Japan))

Presentation style: Online

https://doi.org/10.7567/SSDM.2022.H-3-02

We report on successful fabrication of a series of sus-pended trapezoid graphene devices and observation of the thermal rectification phenomenon at low temperatures. The trapezoid graphene channel is patterned by electron beam lithography (EBL) followed by reactive ion etching (RIE). From the experimental results, we find that heat transport is strongly related to the heat injection length from the hot region to the graphene channel.