Volume 16, Issue 22 2000420
Communication

Multifunctional MoS2 Transistors with Electrolyte Gel Gating

Binmin Wu

Binmin Wu

State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, 500 Yu Tian Road, Shanghai, 200083 China

School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210 China

University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing, 100049 China

Search for more papers by this author
Xudong Wang

Xudong Wang

State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, 500 Yu Tian Road, Shanghai, 200083 China

Search for more papers by this author
Hongwei Tang

Hongwei Tang

State Key Laboratory of ASIC and System School of Microelectronics, Fudan University, Shanghai, 200433 China

Search for more papers by this author
Wei Jiang

Wei Jiang

State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, 500 Yu Tian Road, Shanghai, 200083 China

University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing, 100049 China

Search for more papers by this author
Yan Chen

Yan Chen

State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, 500 Yu Tian Road, Shanghai, 200083 China

Search for more papers by this author
Zhen Wang

Zhen Wang

State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, 500 Yu Tian Road, Shanghai, 200083 China

University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing, 100049 China

Search for more papers by this author
Zhuangzhuang Cui

Zhuangzhuang Cui

State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, 500 Yu Tian Road, Shanghai, 200083 China

University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing, 100049 China

Search for more papers by this author
Tie Lin

Tie Lin

State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, 500 Yu Tian Road, Shanghai, 200083 China

Search for more papers by this author
Hong Shen

Hong Shen

State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, 500 Yu Tian Road, Shanghai, 200083 China

Search for more papers by this author
Weida Hu

Weida Hu

State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, 500 Yu Tian Road, Shanghai, 200083 China

Search for more papers by this author
Xiangjian Meng

Xiangjian Meng

State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, 500 Yu Tian Road, Shanghai, 200083 China

Search for more papers by this author
Wenzhong Bao

Corresponding Author

Wenzhong Bao

State Key Laboratory of ASIC and System School of Microelectronics, Fudan University, Shanghai, 200433 China

E-mail: [email protected]; [email protected]

Search for more papers by this author
Jianlu Wang

Corresponding Author

Jianlu Wang

State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, 500 Yu Tian Road, Shanghai, 200083 China

E-mail: [email protected]; [email protected]

Search for more papers by this author
Junhao Chu

Junhao Chu

State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, 500 Yu Tian Road, Shanghai, 200083 China

School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210 China

University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing, 100049 China

Search for more papers by this author
First published: 30 April 2020
Citations: 30

Abstract

MoS2, one of the most valued 2D materials beyond graphene, shows potential for future applications in postsilicon digital electronics and optoelectronics. However, achieving hole transport in MoS2, which is dominated by electron transport, is always a challenge. Here, MoS2 transistors gated by electrolyte gel exhibit the characteristics of hole and electron transport, a high on/off ratio over 105, and a low subthreshold swing below 50 mV per decade. Due to the electrolyte gel, the density of electrons and holes in the MoS2 channel reaches ≈9 × 1013 and 8.85 × 1013 cm−2, respectively. The electrolyte gel-assisted MoS2 phototransistor exhibits adjustable positive and negative photoconductive effects. Additionally, the MoS2 p–n homojunction diode affected by electrolyte gel shows high performance and a rectification ratio over 107. These results demonstrate that modifying the conductance of MoS2 through electrolyte gel has great potential in highly integrated electronics and optoelectronic photodetectors.

Conflict of Interest

The authors declare no conflict of interest.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.