Wireless portable light-weight self-charging power packs by perovskite-organic tandem solar cells integrated with solid-state asymmetric supercapacitors

Zhu, Tao; Yang, Yu‐Shun; Liu, Yanghe; Lopez-Hallman, Raymond; Ma, Zhihao; Liu, Lei; Gong, Xiong

doi:10.1016/j.nanoen.2020.105397

Cited by 42 publications

(24 citation statements)

References 73 publications

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“…O6T‐4F is chosen as electron acceptor since it displays high electron mobility, which we anticipate to contribute to balanced charge transport and to facilitate exciton dissociation within the ternary composites. [ 37–41 ] Remarkably, we find that the electron mobility upon formation of the ternary system is enhanced ≈10 times (Figures S6 and S7; Table S1, Supporting Information) and results in much better balanced charge transport (μ e /μ h = 0.86). Also, as shown in Figure A, O6T‐4F possesses a strong absorption band extending from 550 to 1000 nm, which is complementary to that of the 2D:3D mixed perovskite composite.…”

Section: Ternary Perovskite–organic Composite Thin Filmsmentioning

confidence: 82%

High‐Performance Ternary Perovskite–Organic Solar Cells

et al. 2022

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Perovskite solar cells in which 2D perovskites are incorporated within a 3D perovskite network exhibit improved stability with respect to purely 3D systems, but lower record power conversion efficiencies (PCEs). Here, a breakthrough is reported in achieving enhanced PCEs, increased stability, and suppressed photocurrent hysteresis by incorporating n‐type, low‐optical‐gap conjugated organic molecules into 2D:3D mixed perovskite composites. The resulting ternary perovskite–organic composites display extended absorption in the near‐infrared region, improved film morphology, enlarged crystallinity, balanced charge transport, efficient photoinduced charge transfer, and suppressed counter‐ion movement. As a result, the ternary perovskite–organic solar cells exhibit PCEs over 23%, which are among the best PCEs for perovskite solar cells with p–i–n device structure. Moreover, the ternary perovskite–organic solar cells possess dramatically enhanced stability and diminished photocurrent hysteresis. All these results demonstrate that the strategy of exploiting ternary perovskite–organic composite thin films provides a facile way to realize high‐performance perovskite solar cells.

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Section: Ternary Perovskite–organic Composite Thin Filmsmentioning

confidence: 82%

High‐Performance Ternary Perovskite–Organic Solar Cells

et al. 2022

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“…Generally, the charge storage mechanisms of supercapacitors depend either on ionic electrosorption at the electrode/electrolyte interfaces (called electrical double layer capacitance, EDLC) or rapid redox reactions occurring on (or near) electrode surfaces (called pseudocapacitance). [ 87 ] Although their energy densities are often lower than those of batteries, supercapacitors can be used as energy storage modules to be integrated with other energy‐harvesting devices to provide fast energy storage, such as solar cells [ 88 ] and energy harvesters. [ 89 ] In addition, conventional supercapacitors are generally rigid and heavy, and the electrolyte used is unstable, requiring complex and rigid encapsulation before usage, which is unsuitable for implantable bioelectronics.…”

Section: Energy Storage Devicesmentioning

confidence: 99%

Recent Advances of Energy Solutions for Implantable Bioelectronics

Sheng

Zhang

Liang

et al. 2021

Adv Healthcare Materials

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The emerging field of implantable bioelectronics has attracted widespread attention in modern society because it can improve treatment outcomes, reduce healthcare costs, and lead to an improvement in the quality of life. However, their continuous operation is often limited by conventional bulky and rigid batteries with a limited lifespan, which must be surgically removed after completing their missions and/or replaced after being exhausted. Herein, this paper gives a comprehensive review of recent advances in nonconventional energy solutions for implantable bioelectronics, emphasizing the miniaturized, flexible, biocompatible, and biodegradable power devices. According to their source of energy, the promising alternative energy solutions are sorted into three main categories, including energy storage devices (batteries and supercapacitors), internal energy‐harvesting devices (including biofuel cells, piezoelectric/triboelectric energy harvesters, thermoelectric and biopotential power generators), and external wireless power transmission technologies (including inductive coupling/radiofrequency, ultrasound‐induced, and photovoltaic devices). Their fundamentals, materials strategies, structural design, output performances, animal experiments, and typical biomedical applications are also discussed. It is expected to offer complementary power sources to extend the battery lifetime of bioelectronics while acting as an independent power supply. Thereafter, the existing challenges and perspectives associated with these powering devices are also outlined, with a focus on implantable bioelectronics.

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“…Gong and co‐workers used solution treatment series solar cells combining perovskite solar cells (PSCs) and ternar organic solar cells (OSCs), and then integrate PSCs—OSCs series solar cells with solid-state asymmetric ultracapactors through solution treatment conducting polymer film to build a wireless portable solution treatment self-charging power pack. Upon exposed to light, the power conversion efficiency and energy storage efficiency were calculated to be 17.16 and 72.4%, respectively ( Zhu et al, 2020b ).…”

Section: Application Of Micro-supercapacitorsmentioning

confidence: 99%

Perspective on Micro-Supercapacitors

et al. 2022

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The rapid development of portable, wearable, and implantable electronic devices greatly stimulated the urgent demand for modern society for multifunctional and miniaturized electrochemical energy storage devices and their integrated microsystems. This article reviews material design and manufacturing technology in different micro-supercapacitors (MSCs) along with devices integrate to achieve the targets of their various applications in recent years. Finally, We also critically prospect the future development directions and challenges of MSCs.

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Wireless portable light-weight self-charging power packs by perovskite-organic tandem solar cells integrated with solid-state asymmetric supercapacitors

Cited by 42 publications

References 73 publications

High‐Performance Ternary Perovskite–Organic Solar Cells

High‐Performance Ternary Perovskite–Organic Solar Cells

Recent Advances of Energy Solutions for Implantable Bioelectronics

Perspective on Micro-Supercapacitors

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