Abstract:
:Transition metal dichalcogenides (TMDCs) are promising materials for sensing applications, due to their exceptional high performance in nano-electronics. Inherentely, the chemical and thermal responses of TMDCs are highly stable, hence, they pave way for real time sensor applications. This article proposes inceptively a stable and superfast humidity sensor using two-dimensional (2D) Molybdenum diselenide (MoSe2) through printed technlogies. The 2D MoSe2 ink is synthesized through wet grinding to achieve few-layered nano-flakes. Inter digital electrodes (IDEs) are fabricated via screen-printing on Polyethylene terephthalate (PET) substrate and thin film of MoSe2 nano-flakes is fabricated through spin coating. The impedance and capacitance response are recorded at 1 kHz between temperature levels ranging from 20-30 °C. The impedance and capacitance hysteresis results are recorded <1.98% and <2.36%, respectively, ensuring very good repeatability during humidification and dehumidification. The stability of impedance and capacitance response are recorded with maximum error rate of ~ 0.162% and ~ 0.183%, respectively. The proposed sensor shows fast impedance response time (Tres) of ~ 0.96 s, and recovery time (Trec) of ~ 1.03 s, which has Tres of ~ 1.87 s, and Trec of ~ 2.13 s for capacitance. It is aimed to develop a high performance and stable humidity sensor for various monitoring applications.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Awais M,Khan MU,Hassan A,Bae J,Chattha TEdoi
10.1038/s41598-020-62397-xsubject
Has Abstractpub_date
2020-03-26 00:00:00pages
5509issue
1issn
2045-2322pii
10.1038/s41598-020-62397-xjournal_volume
10pub_type
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