Autonomous self-healing hybrid energy harvester based on the combination of triboelectric nanogenerator and quantum dot solar cell

Xiao, Tianxiao; Tu, Suo; Tian, Ting; Chen, Wei; Cao, Wei; Liang, Suzhe; Guo, Renjun; Liu, Liangzhen; Li, Yanan; Guan, Tianfu; Liu, Haochen; Wang, Kai; Schwartzkopf, Matthias; Fischer, Roland A.; Roth, Stephan V.; Müller-Buschbaum, Peter

doi:10.1016/j.nanoen.2024.109555

Cited by 7 publications

(1 citation statement)

References 55 publications

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“…This type of energy has attracted widespread attention due to its sustainable, green, and clean characteristics. The main energies that can be utilized from the environment include mechanical energy [1], solar energy [2], tidal energy [3]. However, solar energy and tidal energy are mostly limited by time and space and cannot achieve continuous energy collection, which has great limitations.…”

Section: Introductionmentioning

confidence: 99%

A piezoelectric-electromagnetic hybrid energy harvester for rotational motion driven by magnetic repulsion

Wang,

Lv,

Liu

et al. 2024

Smart Mater. Struct.

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Harvesting energy from rotational motion is an efficient and widely used technology that provides power support for various electronic devices and systems by converting mechanical kinetic energy into electrical energy. This energy harvesting method shows great potential and advantages in industrial automation, transportation, wind power generation, and smart homes. This study proposes a piezoelectric-electromagnetic hybrid energy harvester (HEH) for rotational motion driven by magnetic repulsion. HEH comprises of two parts: a piezoelectric energy harvester (PEH) and an electromagnetic harvester (EMH). HEH utilizes the magnetic drive reciprocating motion to enhance the energy collection efficiency of PEH and EMH. Additionally, by adding the magnetic effect to the ends of bimorph piezoelectric sheets, the spectrum of energy harvesting is expanded. Its parameters are analyzed using theoretical analysis and simulation, and an experimental testbed is established to explore the influence of HEH output performance. The results indicate that the output power reaches its maximum when there are 2 circular magnets on the rotor, the gap distance of magnets is 15mm, and 2 mass blocks at the end of the bimorph piezoelectric sheet. The PEH and EMH outputs are 173.36V and 4.81V, respectively. The maximum output power of HEH is 53.45mW. The power density can reach 6.818mW/cm3. Compared with PEH and EMH, the output performance is improved by 46.94% and 174.95%, respectively. When the rotation speed is 500r/min, HEH can effortlessly light up 80 LEDs. The experimental results all demonstrate the potential of HEH to power low-power sensors.

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Section: Introductionmentioning

confidence: 99%

A piezoelectric-electromagnetic hybrid energy harvester for rotational motion driven by magnetic repulsion

Wang,

Lv,

Liu

et al. 2024

Smart Mater. Struct.

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Comparative Analysis of Excitonic and Biexcitonic Effects on the Power Conversion Efficiency of a CdSe/CdTe/ZnTe Quantum Dot Solar Cell

Unluler,

Koc

2024

Advcd Theory and Sims

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In this study, the power conversion efficiency (PCE) of a CdSe/CdTe/ZnTe quantum dot solar cell (QDSC) is investigated considering the influence of internal parameters such as CdSe core radius and CdTe and ZnTe shell thickness along with external parameters such as temperature and hydrostatic pressure. A comparative analysis is performed using both the original detailed balance model (ODBM) and the modified detailed balance model (MDBM). The main focus of the research is to investigate the effects of excitonic and biexcitonic effective gap energies, as well as the biexciton bound state, on the PCE in the presence of multiple exciton generation (MEG). Calculations using both ODBM and MDBM indicate that the distinct excitonic and biexcitonic effective bandgap energies, resulting from strong confinement effects in quantum dot (QD) structures, significantly affect the PCE in the presence of MEG. In addition, MDBM calculations considering the biexciton bound state show that this bound state critically affects the PCE. The discrepancy between the theoretically predicted maximum PCE and the considerably lower PCE observed in practical applications of QDSCs is also examined, along with the potential reasons for this phenomenon.

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Solar cell performance enhancement using nanostructures

Tumram,

Nafdey,

Kautkar

et al. 2024

Materials Science and Engineering: B

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Autonomous self-healing hybrid energy harvester based on the combination of triboelectric nanogenerator and quantum dot solar cell

Cited by 7 publications

References 55 publications

A piezoelectric-electromagnetic hybrid energy harvester for rotational motion driven by magnetic repulsion

A piezoelectric-electromagnetic hybrid energy harvester for rotational motion driven by magnetic repulsion

Comparative Analysis of Excitonic and Biexcitonic Effects on the Power Conversion Efficiency of a CdSe/CdTe/ZnTe Quantum Dot Solar Cell

Solar cell performance enhancement using nanostructures

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