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Ambipolar Charge Transport in an Organic/Inorganic van der Waals p-n Heterojunction

Abstract

Hybrid two-dimensional (2D) van der Waals (vdW) p-n-junctions are attractive due to the controlled synthesis of the physical performances of organic semiconductors and quantum confinement effects of 2D materials, enabling highly tunable optoelectronic performances as well as their low-cost processability. Here hybrid 2D heterostructures are fabricated with a p-type semiconducting polymer (PDVT-10) and n-type MoS2. Ultra-thin film (~9 nm) of PDVT-10 polymer is formed by Langmuir-Schaefer (LS) technique. Large-scale MoS2 monolayers are prepared by a chemical vapor deposition (CVD) method. The PDVT-10/MoS2 vertical heterojunction devices show ambipolar charge transport properties with p-type maximum field-effect mobility of 0.80 cm2 V-1 s-1 and n-type maximum field-effect mobility of 2.45 cm2 V-1 s-1. In addition, the heterojunctions perform great photoresponse under white light as well as a clear rectifying behavior.

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Publication details

The article was received on 27 Jul 2018, accepted on 07 Nov 2018 and first published on 09 Nov 2018


Article type: Paper
DOI: 10.1039/C8TC03720E
Citation: J. Mater. Chem. C, 2018, Accepted Manuscript
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    Ambipolar Charge Transport in an Organic/Inorganic van der Waals p-n Heterojunction

    J. Yan, Y. Hao, Y. Cui, J. Zhang, Y. Zou, W. Zhang, G. Yu, J. Zheng, W. Xu and D. Zhu, J. Mater. Chem. C, 2018, Accepted Manuscript , DOI: 10.1039/C8TC03720E

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