Energy Conversion Analysis of Multilayered Triboelectric Nanogenerators for Synergistic Rain and Solar Energy Harvesting

Yang, Zheng; Liu, Tong; Wu, Jianrong; Xu, Tiantian; Wang, Xiandi; Han, Xun; Cui, Hongzhi; Xu, Xiaofeng; Pan, Caofeng; Li, Xiaohua

doi:10.1002/adma.202202238

Cited by 94 publications

(45 citation statements)

References 58 publications

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“…Moreover, there are recently emerging research areas employing these organic semiconductor blends or thin film solar cells for extended application, e.g., hydrogen evolution, [24] photoelectrochemical cell, [25,26] or integrated solar cell with raindrop energy harvesting nanogenerator. [27] The device employed in these applications could have direct contact with water or be exposed to a high humidity environment. Considering these possible advantages and trends, it is therefore worth investigating underwater applications for OPVs.…”

Section: Introductionmentioning

confidence: 99%

Water‐Insensitive Electron Transport and Photoactive Layers for Improved Underwater Stability of Organic Photovoltaics

Lin

Hsieh

Macdonald

et al. 2022

Adv Funct Materials

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Water ingress is one of the major environmental stresses to cause the degradation of device performance in organic photovoltaic (OPVs) and is one of the major barriers impeding their commercialization. This work demonstrates that combining the use of a nanoparticle titanium dioxide (np-TiO 2 ) electron transporting layer (ETL) and an all-polymer bulk heterojunction (BHJ) photoactive layer can endow the derived OPV with a much better water resistivity than the commonly employed zinc oxide (ZnO) ETL or polymer:small molecule BHJ blends. Polymer donors/acceptors are first shown to possess better water-immersion than the small molecule counterparts. Hence, the all-polymer blend exhibits the lowest absorbance losses after water immersion among the studied BHJ systems. Furthermore, the result reveals that tailoring the structure of the TiO 2 ETL from planar to nanoparticles effectively strengthens the adhesion at the ETL/BHJ interface to prevent physical delamination. Finally, the np-TiO 2 /all-polymer blend (half-cell) is demonstrated to have superior stability under water immersion, i.e., unchanged morphology and charge carrier transfer, as well as no efficiency changes in the complete cells. This work demonstrates the great potential of the all-polymer blends and np-TiO 2 ETL for improving the durability of unencapsulated OPVs under high humidity environments and even water immersion.

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Section: Introductionmentioning

confidence: 99%

Water‐Insensitive Electron Transport and Photoactive Layers for Improved Underwater Stability of Organic Photovoltaics

Lin

Hsieh

Macdonald

et al. 2022

Adv Funct Materials

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“…The output power density of a TENG is proportional to the square of its triboelectric surface charge density since the open-circuit voltage and short-circuit current are proportional to it at the same time [ 27 , 28 ]. In 2022, Zheng et al [ 29 ]. improved the electrical output performance by studying the quantitative energy conversion analysis of triboelectric nanogenerators and also promoted the development of energy conversion efficiency theory.…”

Section: Introductionmentioning

confidence: 99%

Research on Wave Energy Harvesting Technology of Annular Triboelectric Nanogenerator Based on Multi-Electrode Structure

Wang

Fan

et al. 2022

Micromachines

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Triboelectric nanogenerators can convert wave energy into the electrical energy required by ocean sensors, but the problem of the low electrical output performance of triboelectric nanogenerators has always been a concern. In this paper, an annular triboelectric nanogenerator (A-TENG) composed of an annular outer shell and an inner ball is proposed to improve the electrical output performance of the triboelectric nanogenerator by optimizing the structural parameters and wave parameters. Using the control variables, the effects of structural parameters (structure size, number of electrodes, electrode spacing, inner ball diameter, and number of inner balls) and wave parameters (wave frequency and wave amplitude) on the electrical output performance of the A-TENG were studied by combining COMSOL simulation and experimental research. The experimental results show that increasing the diameter and number of inner spheres can improve the open-circuit voltage between electrodes; the multi-electrode structure can improve the electron transfer rate and efficiently collect wave energy in all directions; and within the range of fixed sea conditions, there is an optimal annular size, which has the advantages of good electrical output performance and small size. The electrical output performance of the A-TENG can be greatly improved by optimizing the structural parameters. There are optimal wave parameters, such that the A-TENG can maximize the ocean wave energy conversion. This low-cost, long-life, efficient, and reliable energy harvesting system is ideal for powering ocean sensors.

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“…Under low‐light conditions such as rainy weather and cloudy day, the solar panel generates relatively low or even no power output, which significantly restricts the applications for photovoltaic technology. [ 4–7 ] Being one of the most abundant sources on the Earth, hydrodynamic energy is sustainable and independent of season, climate, and weather conditions. [ 8 ] Especially the energy stored in water droplets, taking rainfalls, for example, the worldwide annual water precipitation is around 5.05 × 10 5 km 3 , which has an output power potential of around 0.5 TW if the hydrodynamic energy in the raindrops can be fully converted into electrical energy.…”

Section: Introductionmentioning

confidence: 99%

Smart Solar‐Panel Umbrella toward High‐Efficient Hybrid Solar and Rain Energy Harvesting

et al. 2022

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Solar photovoltaic power generation technology is the top priority of the global energy development strategy. Although the photoelectric conversion efficiency of crystalline silicon solar cells is as high as 33.7%, the power generation efficiency is relatively low or even unable to generate power normally under low‐light environments such as rainy weather and a cloudy day. Herein, a smart solar panel umbrella system with an auto open and close function is realized by integrating a polysilicon solar cell module and an interdigitated electrode structure triboelectric nanogenerator (IDE–TENG) toward hybrid solar and rain energy harvesting. The output performances of the IDE–TENG are systematically investigated and optimized by regulating the dielectric thickness, inclination angle of IDE–TENG, and various drip types. On this basis, combined with the solar module, the function of auto open and close for the smart solar panel system is realized by a 32‐bit microcontroller and a raindrop sensor, which can be automatically switched as the weather changes and maintain high power conversion efficiency of 19.61% of the solar cell. This smart solar panel umbrella system can be used as a self‐powered supply for all‐weather landscape lighting to save the utilization of fossil energy and contribute in the realization of carbon neutrality.

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Energy Conversion Analysis of Multilayered Triboelectric Nanogenerators for Synergistic Rain and Solar Energy Harvesting

Cited by 94 publications

References 58 publications

Water‐Insensitive Electron Transport and Photoactive Layers for Improved Underwater Stability of Organic Photovoltaics

Water‐Insensitive Electron Transport and Photoactive Layers for Improved Underwater Stability of Organic Photovoltaics

Research on Wave Energy Harvesting Technology of Annular Triboelectric Nanogenerator Based on Multi-Electrode Structure

Smart Solar‐Panel Umbrella toward High‐Efficient Hybrid Solar and Rain Energy Harvesting

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