期刊
ACS NANO
卷 11, 期 8, 页码 8356-8363出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.7b03657
关键词
monolayer MoS2; electron-acceptor; triboelectric nanogenerator; liquid exfoliation; triboelectric enhancement; nanocomposite
类别
资金
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology [2016R1A2A1A05005502]
- Korea Research Fellowship (KRF) Program through the National Research Foundation of Korea - Ministry of Science, ICT, and Future Planning [2015H1D3A1062276]
- National Research Foundation of Korea [2015H1D3A1062276] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
As one of their major goals, researchers attempting to harvest mechanical energy efficiently have continuously sought ways to integrate mature technologies with cutting-edge designs to enhance the performances of triboelectric nanogenerators (TENGs). In this research, we introduced monolayer molybdenum-disulfide (MoS2) into the friction layer of a TENG as the triboelectric electron-acceptor layer in an attempt to dramatically enhance its output performance. As a proof of the concept, we fabricated a vertical contact-separation mode TENG containing monolayer MoS2 as an electron-acceptor layer and found that the TENG exhibited a peak power density as large as 25.7 W/m(2), which is 120 times larger than that of the device without monolayer MoS2. The mechanisms behind the performance enhancement, which are related to the highly efficient capture of triboelectric electrons in monolayer MoS2, are discussed in detail. This study indicates that monolayer MoS2 can be used as a functional material for efficient energy harvesting.
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