Fluorination effects on bithiophene unit in benzodithiophene-4,8-dione based D–A type alternating copolymers for highly efficient polymer solar cells

Chen, Yunxiang; Chen, Fang

doi:10.1039/d2ra05925h

Cited by 2 publications

(1 citation statement)

References 30 publications

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“…These include benzo [1,2-b:4,5-b ′ ]dithiophene (BDT) [44], carbazole [45], thiophene [46,47], and benzo [1,2-b:4,5-b ′ ]difuran [48,49]. As for the A units, the most frequently employed materials are benzothiadiazole [50][51][52], benzotriazole [53], and benzodithiophene-4,8-dione (BDD) [54]. Researchers have experimented with several structural modifications to enhance the photovoltaic performance of these copolymers.…”

Section: Novel Materials For Semi-transparent Oscsmentioning

confidence: 99%

Novel Materials for Semi-Transparent Organic Solar Cells

Ansari,

Ciampi,

Sibilio

2024

Energies

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The rapid development of photovoltaic technology has driven the search for novel materials that can improve the cost-effectiveness and efficiency of solar cells. Organic semiconductors offer unique optical tunability and transparency, allowing customization for the absorption of specific optical spectra like near-infrared radiation. Through the molecular engineering of electron donors and acceptors, these materials can be optimized for targeted optical selectivity. This adaptability enables the development of efficient energy-harvesting devices tailored for specific spectral regions. Consequently, organic semiconductors present a promising avenue for specialized applications such as semi-transparent organic solar cells. This review offers a detailed summary of the latest developments in novel organic semiconductor materials, focusing on design principles and synthesis of materials in the context of semi-transparent organic solar cells. Optimization of molecular architecture, photovoltaic performance, and the optoelectronic properties of these materials has been explored, highlighting their potential for next-generation solar energy conversion.

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Section: Novel Materials For Semi-transparent Oscsmentioning

confidence: 99%

Novel Materials for Semi-Transparent Organic Solar Cells

Ansari,

Ciampi,

Sibilio

2024

Energies

View full text Add to dashboard Cite

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Fluorinated Polymer Donors for Nonfullerene Organic Solar Cells

Li,

Wang,

Chen

et al. 2024

Chemistry A European J

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The rapid development of narrow‐bandgap non‐fullerene acceptors (NFAs) has boosted the efficiency of organic solar cells over 19%. The new features of high‐performance NFAs, such as visible‐NIR light absorption, moderate HOMO, and high crystallinity, require polymer donors with matching physical properties. This emphasizes the importance of methods that can effectively tune the physical properties of polymers. Owning to very small atom size and strongest electronegativity, the fluorination has been proved the most efficient strategy to regulate the physical properties of polymer donors, including frontier energy level, absorption coefficient, dielectric constant, crystallinity and charge transport. Owing to the success of fluorination strategy, the vast majority of high‐performance polymer donors possess one or more fluorine atoms. In this review, the fluorination synthetic methods, the synthetic route of well‐known fluorinated building blocks, the fluorinated polymers which are categorized by the type of donor or acceptor units, and the relationships between the polymer structures, properties, and photovoltaic performances are comprehensively surveyed. We hope this review could provide the readers a deeper insight into fluorination strategy and lay a strong foundation for future innovation of fluorinated polymers.

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Fluorination effects on bithiophene unit in benzodithiophene-4,8-dione based D–A type alternating copolymers for highly efficient polymer solar cells

Abstract: In this work, two D–A polymers PDTB and PDFTB were synthesized and studied systematically to reveal the fluorination effect on the polymer backbone.

Cited by 2 publications

References 30 publications

Novel Materials for Semi-Transparent Organic Solar Cells

Novel Materials for Semi-Transparent Organic Solar Cells

Fluorinated Polymer Donors for Nonfullerene Organic Solar Cells

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