Explore Two-Dimensional Electronics from Homo- to Hetero-Structure Channels
Yen-Fu Lin1*
1Physics, National Chung-Hsing University, Taichung, Taiwan
* Presenter:Yen-Fu Lin, email:yenfulin@nchu.edu.tw
The discovery of graphene, an extended honeycomb network of carbon atoms, from graphite by using scotch tape-based cleavage, has gained considerable attention. The peculiar properties in graphene really opens up a new area for researches. However, its fatal weak point in the absence of an intrinsic band gap hinders the amenability to develop of logic designs. Thereby, the pace of progress in other semiconducting layered materials is greatly stimulated. Here, we fabricate several kinds of 2D electronics by using homo- and hetero-structure materials as conducting channels. The electrical properties in both charge transport and contact resistance contributions of these 2D electricians will be addressed. In the first part, I will quickly review our recent developments in the synthesis, thickness identification, electronic properties, and possible applications of layered MoTe2 flakes. [1-6] In the second part, I would like to show the contact-enhanced behaviors in layered PbSnS2 transistors. [7] In the third part, I would like to present the electrical performance and charge mechanism in atomically thin p-n heterostructure transistors.

Reference:
[1]. Jpn. J. Appl. Phys. 55, 1102A1 (2016)
[2]. ACS Appl. Mater. Interfaces 8, 14732 (2016)
[3]. ACS Nano 9, 5976-5983 (2015)
[4]. Adv. Mater. 27, 6612-6619 (2015)
[5]. Adv. Mater. 26, 3263-3269 (2014)
[6]. ACS Nano 8, 3895-3903 (2014)
[7]. 2D Mater. 3, 045015 (2016)


Keywords: layered electronics, charge transport, low-frequency noise, 2D heterostructure