Aggregation State Regulation of Molecular Hole Conductors for Light‐Stable Perovskite Photovoltaics DOI
Zheng Zhang, Sijing Wang,

Yuyan Dong

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 2, 2025

Abstract The molecular aggregation state of organic hole conductors greatly influences charge collection perovskite solar cells (PSCs). In this study, we optimize the core/periphery steric Cl‐substituent (W1, W2, W3) and regulate by packing interactions. It is demonstrated that W1 with Cl core‐substituent exhibits enhanced crystallization strong intermolecular interactions in contrast to W2 sidechain‐substituent. Conversely, W3 substituent at both core sidechain results most unfavorable stacking. high mobility reinforced interfacial bonding, achieving a remarkable photovoltaic efficiency 24.7%, outperforming other two (W2's 23.9% W3's 20.3%). Furthermore, W1‐ W2‐PSCs retain 95.3% 87.2% their initial after 1,000 hours maximum power point tracking (MPPT), respectively. This work provides fundamental insights into Cl‐substituent‐induced behavior offers delicate approach for designing high‐performance semiconductors.

Язык: Английский

Aggregation State Regulation of Molecular Hole Conductors for Light‐Stable Perovskite Photovoltaics DOI
Zheng Zhang, Sijing Wang,

Yuyan Dong

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 2, 2025

Abstract The molecular aggregation state of organic hole conductors greatly influences charge collection perovskite solar cells (PSCs). In this study, we optimize the core/periphery steric Cl‐substituent (W1, W2, W3) and regulate by packing interactions. It is demonstrated that W1 with Cl core‐substituent exhibits enhanced crystallization strong intermolecular interactions in contrast to W2 sidechain‐substituent. Conversely, W3 substituent at both core sidechain results most unfavorable stacking. high mobility reinforced interfacial bonding, achieving a remarkable photovoltaic efficiency 24.7%, outperforming other two (W2's 23.9% W3's 20.3%). Furthermore, W1‐ W2‐PSCs retain 95.3% 87.2% their initial after 1,000 hours maximum power point tracking (MPPT), respectively. This work provides fundamental insights into Cl‐substituent‐induced behavior offers delicate approach for designing high‐performance semiconductors.

Язык: Английский

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