MoSe2 Enhanced Raindrop Triboelectric Nanogenerators and Its Energy Conversion Analysis
Yang Zheng,
Xing Li,
Mingli Zheng
et al.
Abstract:Triboelectric nanogenerators (TENGs) are considered one of the most effective methods for harvesting irregular and low‐frequency raindrop energy. In this work, molybdenum selenide (MoSe2) nanosheets act as intermediate layers for improving droplet‐based TENG performance. Consequently, without surface etching process, the short‐circuit current (Isc) and open‐circuit voltage (Voc) of the TENG can reach as high as 1.2 mA and 120 V, respectively. Furthermore, precise energy analysis based on an optimization model … Show more
“…They also proposed an input energy calculation model to analyze the energy conversion efficiency of water droplets with different volumes and release heights. 18 Despite the promising performance of various DEGs in water droplet energy harvesting, the highest voltage output achieved so far is still below 300 V, limiting its potential applications. Therefore, there is an urgent need to explore new methods to improve the output performance of DEGs.…”
“…They also proposed an input energy calculation model to analyze the energy conversion efficiency of water droplets with different volumes and release heights. 18 Despite the promising performance of various DEGs in water droplet energy harvesting, the highest voltage output achieved so far is still below 300 V, limiting its potential applications. Therefore, there is an urgent need to explore new methods to improve the output performance of DEGs.…”
The droplet electricity generator (DEG) is a solid‐liquid triboelectric nanogenerator (TENG) with transistor‐inspired bulk effect, which is regarded as an effective strategy for raindrop energy harvesting. However, further enhancement of DEG output voltage is necessary to enable its widespread applications. In this work, high‐entropy ceramics are integrated into the design of DEG intermediate layer for the first time, achieving a high output voltage of 525 V. High‐entropy ceramics have colossal dielectric constant, which can help to reduce the triboelectric charge decay for DEG. Furthermore, we extensively analyze the effect of factors on DEG output performance when employing high‐entropy ceramics as the intermediate layer, and explore the underlying mechanisms and mathematical models. Lastly, the enhanced output voltage of DEG not only facilitates faster energy harvesting but also enables a novel method for rapid bacterial detection. This work successfully integrates high‐entropy ceramics into DEG design, significantly enhances the output voltage and offers a novel direction for DEG development.This article is protected by copyright. All rights reserved
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