Effect of Halogen/Chalcogen Substitution on the Dielectric Constant of Asymmetric Acceptor Alloys to Improve the Efficiency and Stability of Inverted Organic Photovoltaics

Yanbo Wang; Yung‐Jing Xue; Chieh‐Ming Hung; Kuo-Hsiu Huang; Bing‐Huang Jiang; Chia‐Lin Tsai; Yu‐Chi Huang; Hong‐Yi Chen; Shang‐Da Yang; Su‐Ying Chien; Chih‐Ping Chen; Pi‐Tai Chou; Yen‐Ju Cheng

doi:10.1039/d5sc04976h

January 1, 2025Chemical ScienceOpen Access

Effect of Halogen/Chalcogen Substitution on the Dielectric Constant of Asymmetric Acceptor Alloys to Improve the Efficiency and Stability of Inverted Organic Photovoltaics

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Key Points

The dielectric constant significantly influences exciton dissociation and charge recombination dynamics, improving efficiency and stability.
Substituting bromine in these alloys enhances the dielectric properties, leading to more effective solar energy conversion processes.
Analysis of non-fullerene acceptors reveals how structural modifications affect their performance in organic solar cells.
Improving dielectric constants has potential implications for the future development and commercialization of efficient organic photovoltaic technologies.

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Implication

Observational analysis shows that modifying dielectric constant improves efficiency in organic photovoltaics, suggesting enhanced stability in energy conversion.

Abstract

The dielectric constant (εᵣ) of non-fullerene acceptors is a key parameter in organic solar cells, significantly influencing exciton dissociation efficiency and charge recombination dynamics. Substituting bromine, characterized by moderate electronegativity...

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Wang et al. (2025) studied this question.

synapsesocial.com/papers/68af5d69ad7bf08b1eae0d33 https://doi.org/10.1039/d5sc04976h

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Effect of Halogen/Chalcogen Substitution on the Dielectric Constant of Asymmetric Acceptor Alloys to Improve the Efficiency and Stability of Inverted Organic Photovoltaics

Key Points

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Implication

Abstract

Discussion

Cite This Study

Effect of Halogen/Chalcogen Substitution on the Dielectric Constant of Asymmetric Acceptor Alloys to Improve the Efficiency and Stability of Inverted Organic Photovoltaics

Key Points

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Implication

Abstract

Discussion

Cite This Study

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