Triboiontronic Transistor of MoS2

• Published in: Advanced materials (Weinheim) Vol. 31; no. 7; pp. e1806905 - n/a
• Main Authors: Gao, Guoyun, Yu, Jinran, Yang, Xixi, Pang, Yaokun, Zhao, Jing, Pan, Caofeng, Sun, Qijun, Wang, Zhong Lin
• Format: Journal Article
• Language: English
• Published: Weinheim Wiley Subscription Services, Inc 15.02.2019
• Subjects: Current carriers; Electric bridges; Electric double layer; Electric fields; electrical double layers; Field effect transistors; Interdisciplinary studies; Ion migration; ion‐gel‐gated MoS2 transistors; Materials science; Molybdenum disulfide; Power consumption; Semiconductor devices; Transistors; triboelectric nanogenerators; triboiontronic logic inverters; triboiontronic transistors; Wearable technology
• ISSN: 0935-9648; 1521-4095
• DOI: 10.1002/adma.201806905

Electric double layers (EDLs) formed in electrolyte‐gated field‐effect transistors (FETs) induce an extremely large local electric field that gives a highly efficient charge carrier control in the semiconductor channel. To achieve highly efficient triboelectric potential gating on the FET and explore diversified applications of electric double layer FETs (EDL‐FETs), a triboiontronic transistor is proposed to bridge triboelectric potential modulation and ion‐controlled semiconductor devices. Utilizing the triboelectric potential instead of applying an external gate voltage, the triboiontronic MoS2 transistor is efficiently operated owing to the formation of EDLs in the ion‐gel dielectric layer. The operation mechanism of the triboiontronic transistor is proposed, and high current on/off ratio over 107, low threshold value (75 μm), and steep switching properties (20 µm dec−1) are achieved. A triboiontronic logic inverter with desirable gain (8.3 V mm−1), low power consumption, and high stability is also demonstrated. This work presents a low‐power‐consuming, active, and a general approach to efficiently modulate semiconductor devices through mechanical instructions, which has great potential in human–machine interaction, electronic skin, and intelligent wearable devices. The proposed triboiontronics utilize ion migration and arrangement triggered by mechanical stimuli to control electronic properties, which are ready to deliver new interdisciplinary research directions. A triboiontronic field‐effect transistor of molybdenum disulfide is proposed to bridge triboelectric potential modulation and ion‐controlled semiconductor devices. The operation mechanism of the triboiontronic transistor is investigated and high current on/off ratio (>107), low threshold value (75 µm), and steep switching properties (20 µm dec−1) are achieved.