Time-Dependent Mechanical Properties of Bulk Heterojunction Films in Organic Solar Cells DOI
Shiqi Hu, Zezhou Liang, Tian Zhong

et al.

Macromolecules, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 8, 2024

The mechanical properties of bulk heterojunction (BHJ) films play critical roles in the operational stability organic solar cells (OSCs) real-world applications. While existing literature extensively explores static characteristics BHJ films, time-dependent are largely overlooked despite their significance addressing temporal stresses encountered during practical use. To address this gap, representative prepared, and reported. It is demonstrated that regardless whether they subjected to tensile or compressive stress, based on PC71BM, Y6, PYF-T-o decreases gradually, all-polymer-based have lower durability than small molecule fullerene acceptors. Furthermore, impacts continuous tension acceptor aggregation stacking meticulously studied, evidencing stress modifies degree through a relative displacement molecules within films. Additionally, carrier dynamics studies show lifetimes carriers extended following application tension. This work raises awareness OSCs provides important insights into development novel flexible OSC materials device fabrication processes.

Language: Английский

Numerical study of charge transport layers in inverted ternary organic photovoltaic cells DOI Creative Commons
Vincent Magnin, Kekeli N’Konou

EPJ Photovoltaics, Journal Year: 2024, Volume and Issue: 15, P. 29 - 29

Published: Jan. 1, 2024

This study investigates the crucial role of charge transport layers in enhancing performance inverted organic photovoltaic cells (OPVs) through advanced numerical simulations using OghmaNano software. OPVs offer distinct advantages, including lightweight, flexibility, and potential cost-effectiveness compared to traditional silicon-based counterparts, making them pivotal for sustainable energy solutions. We evaluate efficiency (iOPVs) employing binary (PM6:L8-BO) ternary (PM6:D18:L8-BO) active layers, utilizing electron (ETLs) ZnO, TiO 2 , SnO hole (HTLs) such as MoO 3 PEDOT, WO . Results highlight ZnO with a 15 nm-thick layer combined HTL achieving an impressive 18.89% devices, demonstrating effectiveness materials blends. The demonstrates that or ETLs can compete effectively ETLs, particularly when used at thinner thicknesses, offers alternative fabrication methods. It suggests thin ETL (15 ± nm) could significantly enhance iOPV devices. Simulations are optimizing device configurations enabling rapid prototyping cost-effective exploration material combinations architectures. These play critical balancing carrier generation efficiency, collectively maximizing performance. Overall, underscores optimized thicknesses advancing OPV technology by refining manufacturing processes accelerating adoption

Language: Английский

Citations

0

Side-chain cyclization enhancing molecular rigidity and π-π stacking yields as-cast binary organic solar cells with 19.1% efficiency DOI
Lang Li, Wei Gao, Ruijie Ma

et al.

Science China Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 14, 2024

Language: Английский

Citations

0

Time-Dependent Mechanical Properties of Bulk Heterojunction Films in Organic Solar Cells DOI
Shiqi Hu, Zezhou Liang, Tian Zhong

et al.

Macromolecules, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 8, 2024

The mechanical properties of bulk heterojunction (BHJ) films play critical roles in the operational stability organic solar cells (OSCs) real-world applications. While existing literature extensively explores static characteristics BHJ films, time-dependent are largely overlooked despite their significance addressing temporal stresses encountered during practical use. To address this gap, representative prepared, and reported. It is demonstrated that regardless whether they subjected to tensile or compressive stress, based on PC71BM, Y6, PYF-T-o decreases gradually, all-polymer-based have lower durability than small molecule fullerene acceptors. Furthermore, impacts continuous tension acceptor aggregation stacking meticulously studied, evidencing stress modifies degree through a relative displacement molecules within films. Additionally, carrier dynamics studies show lifetimes carriers extended following application tension. This work raises awareness OSCs provides important insights into development novel flexible OSC materials device fabrication processes.

Language: Английский

Citations

0