Journal
NANOTECHNOLOGY
Volume 27, Issue 43, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/27/43/435501
Keywords
molybdenum disulfide flake; electrohydrodynamic printing; liquid exfoliation; gas sensor
Funding
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT & Future Planning [NRF-2013R1A1A1004986]
- INHA UNIVERSITY Research Grant
- Basic Science Research Program of the National Research Foundation of Korea (NRF) - Ministry of Science, ICT & Future Planning [NRF-2014R1A1A1036139]
- Fundamental Research Program of the Korean Institute of Materials Science (KIMS) [PNK4580]
- National Research Council of Science & Technology (NST), Republic of Korea [PNK4580] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [31Z20130012940, 2013R1A1A1004986, 2014R1A1A1036139] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Scalable sub-micrometer molybdenum disulfide (MoS2) flake films with highly uniform coverage were created using a systematic approach. An electrohydrodynamic (EHD) printing process realized a remarkably uniform distribution of exfoliated MoS2 flakes on desired substrates. In combination with a fast evaporating dispersion medium and an optimal choice of operating parameters, the EHD printing can produce a film rapidly on a substrate without excessive agglomeration or cluster formation, which can be problems in previously reported liquid-based continuous film methods. The printing of exfoliated MoS2 flakes enabled the fabrication of a gas sensor with high performance and reproducibility for NO2 and NH3.
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