Correlating miscibility, mechanical parameters, and stability of ternary polymer blends for high-performance solar cells

Zhou, Kangkang; Xian, Kaihu; Ma, Ruijie; Liu, Junwei; Gao, Mengyuan; Li, Saimeng; Liu, Tao; Chen, Yu; Geng, Yanhou; Ye, Long

doi:10.1039/d3ee01683h

Cited by 32 publications

(8 citation statements)

References 65 publications

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“…Later, the morphology of the ES‐coated FEP film was investigated, specifically through the analysis of atomic force microscopy (AFM) images and grazing incidence wide‐angle X‐ray scattering (GIWAXS) [ 32–34 ] patterns. From the height imaged ( Figure a), the root mean square roughness values of the FEP film were around 4.2 nm.…”

Section: Resultsmentioning

confidence: 99%

Electrostatically Sprayed Flexible Encapsulation for High‐Performance III–V Solar Cells

Zhang,

Xiong,

Gao

et al. 2023

Solar RRL

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Multijunction solar cells that employ III–V semiconductors are highly efficient, lightweight, and flexible, rendering them excellent candidates for use in automobiles, satellites, or flexible electronics. To improve the operational stability of these high‐efficiency solar cells for practical applications, herein an innovative method for encapsulating high‐performance flexible III–V solar cells is proposed, which enables solar cell with a photoelectric conversion efficiency of 32.72% to maintain an efficiency of 31.67% after packaging under the AM1.5 global spectrum. The module remains the same efficiency of ≈29.7% under AM0 after encapsulation. The key to this approach is electrostatically spraying and curing fluorinated ethylene propylene materials to create a flexible, cost‐effective, and efficient encapsulation layer for III–V solar cells. The proposed encapsulation method demonstrates excellent adhesion, barrier properties, easy scalability, and long‐term stability, enabling enhanced performance, extended lifetimes, and improved reliability of III–V solar cells.

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Section: Resultsmentioning

confidence: 99%

Electrostatically Sprayed Flexible Encapsulation for High‐Performance III–V Solar Cells

Zhang,

Xiong,

Gao

et al. 2023

Solar RRL

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“…Introducing polymer HTLs can further enhance the mechanical properties of QD optoelectronic devices. It is highly desirable to develop mechanically flexible QD/polymer solar cells and photodetectors to broaden their applications in wearable electronics. ,,− …”

Section: Discussionmentioning

confidence: 97%

“…(1) Development of flexible optoelectronic devices. Although the performance has been rapidly enhanced, few studies have been devoted to developing QD solar cells and photodetectors on flexible substrates. − This significantly precludes their applications in flexible/wearable electronics. In fact, QD materials generally present high flexibility compared to bulk photovoltaic materials .…”

Section: Discussionmentioning

confidence: 99%

Tuning the Aggregated Structure of Polymer Interlayers for High-Performance Quantum Dot Solar Cells and Photodetectors

Han,

Yang,

Liu

et al. 2024

ACS Appl. Polym. Mater.

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Due to their unique optoelectronic properties and potential for high efficiency, quantum dot (QD) solar cells and photodetectors have gained tremendous attention. Achieving efficient charge transport and extraction in these devices is crucial for enhancing their performance. Polymer interlayers play a vital role in facilitating charge transport and improving the device stability. This Spotlight on Applications paper focuses on the effective strategies employed to tune the microstructure of polymer interlayers in QD solar cells and photodetectors to achieve high efficiency by bringing together the recent literature. With the use of advanced synchrotron radiation scattering and microscopic characterizations, we elucidate the impact of polymer properties, casting solvents, and physical blending methods on the microstructures of polymer interlayers in quantum dot solar cells and photodetectors. Furthermore, we take a detailed look at some facile strategies such as aggregation-suppressed blending and polymer synergy that have enabled precise control over the microstructure of polymer interlayers. Finally, we provide perspectives on future research directions and obstacles in the field.

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“…At the next stage, the solution aggregation structure of the dual-polythiophene blends and the alikes need to be thoroughly explored via SANS and complementary tools. [45][46][47][48]…”

Section: Discussionmentioning

confidence: 99%

A Dual‐Polythiophene Blending Strategy to Reduce the Efficiency‐Stability‐Cost Gap of Solar Cells

Qi,

Wang,

Gao

et al. 2023

Small

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Benefiting from the photovoltaic material innovation and delicate device optimization, high‐efficiency solar cells employing polymeric materials are thriving. Reducing the gap of cost, efficiency, and stability is the critical challenge faced by the emerging solar cells such as organics, quantum dots and perovskites. Poly(3‐alkylthiophene) demonstrates great potential in organic solar cells and quantum dot solar cells as the active layer or the hole transport layer due to its large scalability, excellent photoelectric performance, and favorable hydrophobicity. The present low efficiency and insufficient stability, restrict its commercial application. In this work, a facile strategy of blending two simple polythiophenes is put forward to manipulate the film microstructure and enhance the device efficiency and thermal stability of solar cells. The introduction of P3PT can improve the power conversion efficiency (PCE) of a benchmark cost‐effective blend P3HT:O‐IDTBR to 7.41%, and the developed ternary solar cells also exhibit increased thermal stability. More strikingly, the quantum dot solar cells with the dual‐polythiophene hole transport layer achieve the highest PCE of 10.51%, which is among the topmost efficiencies for quantum dots/polythiophene solar cells. Together, this work provides an effective route to simultaneously optimize the device efficiency and thermal stability of solar cells.

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Correlating miscibility, mechanical parameters, and stability of ternary polymer blends for high-performance solar cells

Abstract: The established miscibility–function relationships are helpful to predict mechanical properties and stability in organic photovoltaic devices based on multicomponent systems.

Cited by 32 publications

References 65 publications

Electrostatically Sprayed Flexible Encapsulation for High‐Performance III–V Solar Cells

Electrostatically Sprayed Flexible Encapsulation for High‐Performance III–V Solar Cells

Tuning the Aggregated Structure of Polymer Interlayers for High-Performance Quantum Dot Solar Cells and Photodetectors

A Dual‐Polythiophene Blending Strategy to Reduce the Efficiency‐Stability‐Cost Gap of Solar Cells

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