@article{Piatti:2021:10.1038/s41928-021-00684-9,
author = {Piatti, E and Arbab, A and Galanti, F and Carey, T and Anzi, L and Spurling, D and Roy, A and Zhussupbekova, A and Patel, K and Kim, JM and Daghero, D and Sordan, R and Nicolosi, V and Gonnelli, R and Torrisi, F},
doi = {10.1038/s41928-021-00684-9},
journal = {Nature Electronics},
pages = {893--905},
title = {Charge transport mechanisms in inkjet-printed thin-film transistors based on two-dimensional materials},
url = {http://dx.doi.org/10.1038/s41928-021-00684-9},
volume = {4},
year = {2021}
}

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TY  - JOUR
AB  - Printed electronics using inks based on graphene and other two-dimensional materials can be used to create large-scale, flexible, and wearable devices. However, the complexity of the ink formulations, and the polycrystalline nature of the resulting thin films, have made it difficult to examine charge transport in such devices. Here we report the charge transport mechanisms of surfactant- and solvent-free inkjet-printed thin-film devices based on few-layer graphene (semi-metal), molybdenum disulfide (MoS2, semiconductor) and titanium carbide MXene (Ti3C2, metal) by investigating the temperature, gate and magnetic field dependencies of their electrical conductivity. We find that charge transport in printed few-layer MXene and MoS2 devices is dominated by the intrinsic transport mechanism of the constituent flakes: MXene exhibits a weakly-localized 2D metallic behaviour at any temperature, whereas MoS2 behaves as an insulator with a crossover from 3D-Mott variable-range hopping to nearest-neighbour hopping around 200 K. Charge transport in printed few-layer graphene devices is dominated by the transport mechanism between different flakes, which exhibit 3D-Mott variable range hopping conduction at any temperature.
AU  - Piatti,E
AU  - Arbab,A
AU  - Galanti,F
AU  - Carey,T
AU  - Anzi,L
AU  - Spurling,D
AU  - Roy,A
AU  - Zhussupbekova,A
AU  - Patel,K
AU  - Kim,JM
AU  - Daghero,D
AU  - Sordan,R
AU  - Nicolosi,V
AU  - Gonnelli,R
AU  - Torrisi,F
DO  - 10.1038/s41928-021-00684-9
EP  - 905
PY  - 2021///
SN  - 2520-1131
SP  - 893
TI  - Charge transport mechanisms in inkjet-printed thin-film transistors based on two-dimensional materials
T2  - Nature Electronics
UR  - http://dx.doi.org/10.1038/s41928-021-00684-9
UR  - https://www.nature.com/articles/s41928-021-00684-9
UR  - http://hdl.handle.net/10044/1/92676
VL  - 4
ER  - 

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