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Two-dimensional manganese di-telluride based triboelectric nanogenerator

Gowda, CC and Tromer, R and Chandravanshi, D and Pandey, P and Chattopadhyay, K and Galvao, DS and Tiwary, CS (2023) Two-dimensional manganese di-telluride based triboelectric nanogenerator. In: Nano Energy, 117 .

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Official URL: https://doi.org/10.1016/j.nanoen.2023.108833


Low-dimensional transition metal chalcogenides (TMDCs) have gained interest as potential energy harvesters. The structural change during dimensional reduction paves the way for better charge repositories compared to their bulk counterparts. Thin flakes of manganese di-telluride (MnTe2) were used to devise a triboelectric nanogenerator (TENG), and the device was capable of producing a maximum power density of 123 mW cm-2, with a sensitivity of � 408 mV kPa-1. The device also has a high surface potential of 1.02 V and surface charge density (SCD) of 2.204 mC m-2, respectively. The effect of uniaxial and biaxial strains on the two-dimensional (2D) TENG was studied using in-situ Raman spectroscopy. The enhanced outputs in the 2D device were attributed to the Te - di vacancies created during exfoliation in the flakes (DFT calculations). The potential application of the fabricated device is to be used as an energy harvester from air-conditioning (AC) ducts. © 2023 Elsevier Ltd

Item Type: Journal Article
Publication: Nano Energy
Publisher: Elsevier Ltd
Additional Information: The copyright for this article belongs to the Elsevier Ltd.
Keywords: Air conditioning; Manganese compounds; Potential energy; Strain; Tellurium compounds; Transition metals; Triboelectricity, 2d mnte2; DFT simulation; Energy Harvester; Nanogenerators; Raman measurements; Strain based; Strain based raman measurement; Tribo-electricity; Two-dimensional; Two-dimensional materials, Nanogenerators
Department/Centre: Division of Interdisciplinary Sciences > Interdisciplinary Centre for Energy Research
Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 10 Nov 2023 10:10
Last Modified: 10 Nov 2023 10:10
URI: https://eprints.iisc.ac.in/id/eprint/83181

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