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Liquid metal-based synthesis of high performance monolayer SnS piezoelectric nanogenerators

Version 3 2024-06-18, 21:45
Version 2 2024-06-05, 09:30
Version 1 2022-11-16, 06:08
journal contribution
posted on 2024-06-18, 21:45 authored by H Khan, N Mahmood, A Zavabeti, A Elbourne, MA Rahman, BY Zhang, V Krishnamurthi, P Atkin, MB Ghasemian, J Yang, G Zheng, AR Ravindran, S Walia, L Wang, SP Russo, T Daeneke, Y Li, K Kalantar-Zadeh
AbstractThe predicted strong piezoelectricity for monolayers of group IV monochalcogenides, together with their inherent flexibility, makes them likely candidates for developing flexible nanogenerators. Within this group, SnS is a potential choice for such nanogenerators due to its favourable semiconducting properties. To date, access to large-area and highly crystalline monolayer SnS has been challenging due to the presence of strong inter-layer interactions by the lone-pair electrons of S. Here we report single crystal across-the-plane and large-area monolayer SnS synthesis using a liquid metal-based technique. The characterisations confirm the formation of atomically thin SnS with a remarkable carrier mobility of ~35 cm2 V−1 s−1 and piezoelectric coefficient of ~26 pm V−1. Piezoelectric nanogenerators fabricated using the SnS monolayers demonstrate a peak output voltage of ~150 mV at 0.7% strain. The stable and flexible monolayer SnS can be implemented into a variety of systems for efficient energy harvesting.

History

Journal

Nature Communications

Volume

11

Article number

ARTN 3449

Pagination

1-8

Location

London, Eng.

ISSN

2041-1723

eISSN

2041-1723

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Publisher

Nature Portfolio

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