Interfacial properties of two-dimensional graphene/ZrS2 and ScS2/ZrS2 contacts
Interfacial properties of two-dimensional graphene/ZrS2 and ScS2/ZrS2 contacts
复制标题
二维石墨烯/ZrS2和ScS2/ZrS2接触的界面特性
DOI:
10.1016/j.apsusc.2019.01.165
复制
发表时间:
2019-05
期刊:
影响因子:
--
通讯作者:
Tang Weihua
中科院分区:
文献类型:
--
作者:
Wang Xiaolong;Quhe Ruge;Liu Zeng;Zhi Yusong;Tang Yanan;Dai Xianqi;Wu Zhenping;Tang Weihua
The two dimensional device is a promising candidate for preparation of ‘More than Moore’ device. However, two dimensional device always exhibits relative weak on-current. In this work, graphene and monolayer ScS2are used as metal electrode to contact with monolayer ZrS2. Using the first principle calculation, we analyze the electronic structures of the different types of metal/ZrS2contact and figure out how the orbital coupling and charge transfer influence the interface barrier. The Ohmic contact can be obtained in vertical graphene/ZrS2and in-plane ScS2/ZrS2contacts, implying high carrier injection efficiency can be achieved in the contacts. The tunneling probability is larger than 97% in all the contacts. Moreover, the strain can modulate the interfacial dipole moment and the mutual transformation of Schottky contact and Ohmic contact. In particular, compressive strain is conducive to improve the carrier injection efficiency. In addition, a low resistance junction is designed based on ScS2/ZrS2/graphene contact and the multifunction of the junction may be achieved with electrostatic doping. The results provide guidelines for designing low-resistance two dimensional ZrS2device.
登录
查看更多内容
影响因子:
2.1
作者:
Li Wei;Wang Xinlian;Dai Xianqi
通讯作者:
Dai Xianqi
影响因子:
3
作者:
Grimme, Stefan
通讯作者:
Grimme, Stefan
影响因子:
10.9
作者:
Li, Qiuhui;Yang, Jie;Lu, Jing
通讯作者:
Lu, Jing
影响因子:
3.7
作者:
Caizhi Xu;Y. Chan;Peng Chen;Xiaoxiong Wang;David Flototto;J. Hlevyack;G. Bian;S. Mo;M. Chou;T. Chiang
通讯作者:
Caizhi Xu;Y. Chan;Peng Chen;Xiaoxiong Wang;David Flototto;J. Hlevyack;G. Bian;S. Mo;M. Chou;T. Chiang
影响因子:
13.3
作者:
Jongwon Yoon;Woojin Park;Ga-Yeong Bae;Yonghun Kim;Hun Soo Jang;Yujun Hyun;S. Lim;Y. H. Kahng
通讯作者:
Jongwon Yoon;Woojin Park;Ga-Yeong Bae;Yonghun Kim;Hun Soo Jang;Yujun Hyun;S. Lim;Y. H. Kahng