Surface Engineered MoS2-Based Novel Vertical Triboelectric Nanogenerator (V-TENG) for Wireless Information Processing

IF 13 2区 材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Small Pub Date : 2025-01-29 DOI:10.1002/smll.202410608
Mukul Biswas, Didhiti Bhattacharya, Rahul Mondal, Ritamay Bhunia, Ashish Garg, Avijit Chowdhury
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引用次数: 0

Abstract

Self-sustaining mechanical energy harvesting devices are pivotal for developing durable energy-efficient systems, providing scalable and adaptable solutions to wearable technology. Triboelectric nanogenerators (TENGs) efficaciously convert ambient mechanical energy into usable electrical power to sustainably drive modern electronics. Surface and structural engineering is an avenue to boost TENGs’ energy harvesting through modulating contact interfaces and charge transfer interactions between the constituent layers. This study explores dielectric engineering incorporating an additional transition layer, such as Polyethylene Terephthalate (PET), alongside kapton to store accumulated charges. The surface of molybdenum sulfide (MoS2) is modified with different aromatic carboxylic acids to boost the vertical TENG's performance. The anchoring of aromatic carboxylic acid [4,4′-Oxybis (Benzoic acid)] modifies the work function and surface charge density of MoS2-based TENG and enhances the output performance. The output open-circuit voltage (VOC) and short-circuit current (ISC) for “PET-Kapton@4,4′-MoS2” TENG increase from 6 to 30 V and 65 to 202nA, respectively. The maximum power density obtained after inserting the transition layer and modifying the MoS2 surface is 399 mW m2. The “PET-Kapton@4,4′-MoS2” TENG can power up to 6 LEDs, run a calculator, and generate International Morse code. A microcontroller unit successfully decodes the Morse code and transmits it wirelessly to a smartphone via Wi-Fi.

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来源期刊
Small
Small 工程技术-材料科学:综合
CiteScore
17.70
自引率
3.80%
发文量
1830
审稿时长
2.1 months
期刊介绍: Small serves as an exceptional platform for both experimental and theoretical studies in fundamental and applied interdisciplinary research at the nano- and microscale. The journal offers a compelling mix of peer-reviewed Research Articles, Reviews, Perspectives, and Comments. With a remarkable 2022 Journal Impact Factor of 13.3 (Journal Citation Reports from Clarivate Analytics, 2023), Small remains among the top multidisciplinary journals, covering a wide range of topics at the interface of materials science, chemistry, physics, engineering, medicine, and biology. Small's readership includes biochemists, biologists, biomedical scientists, chemists, engineers, information technologists, materials scientists, physicists, and theoreticians alike.
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