Compromising Charge Generation and Recombination of Organic Photovoltaics with Mixed Diluent Strategy for Certified 19.4% Efficiency DOI
Tianyi Chen, Shuixing Li,

Yaokai Li

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(21)

Published: March 3, 2023

The ternary blend is demonstrated as an effective strategy to promote the device performance of organic photovoltaics (OPVs) due dilution effect. While compromise between charge generation and recombination remains a challenge. Here, mixed diluent for further improving efficiency OPV proposed. Specifically, high-performance system with polymer donor, i.e., PM6, nonfullerene acceptor (NFA), BTP-eC9, diluted by diluents, which involve high bandgap NFA BTP-S17 low BTP-S16 (similar that BTP-eC9). better miscibility BTP-eC9 can dramatically enhance open-circuit voltage (VOC ), while maximizes or short-circuit current density (JSC ). interplay BTP-17 enables recombination, thus leading 19.76% (certified 19.41%), best among single-junction OPVs. Further analysis on carrier dynamics validates efficacy diluents balancing be attributed more diverse energetic landscapes improved morphology. Therefore, this work provides commercialization.

Language: Английский

16.7%-efficiency ternary blended organic photovoltaic cells with PCBM as the acceptor additive to increase the open-circuit voltage and phase purity DOI

Ming-Ao Pan,

Tsz-Ki Lau,

Yabing Tang

et al.

Journal of Materials Chemistry A, Journal Year: 2019, Volume and Issue: 7(36), P. 20713 - 20722

Published: Jan. 1, 2019

Ternary solar cells with an efficiency of 16.7% were enabled through the use PCBM as a higher LUMO-level acceptor additive to concurrently increase Voc, Jsc and FF values.

Language: Английский

Citations

288
Controlling Molecular Mass of Low-Band-Gap Polymer Acceptors for High-Performance All-Polymer Solar Cells DOI Creative Commons
Wei Wang, Qiang Wu, Rui Sun

et al.

Joule, Journal Year: 2020, Volume and Issue: 4(5), P. 1070 - 1086

Published: April 16, 2020

Language: Английский

Citations

287
High-performance conjugated polymer donor materials for polymer solar cells with narrow-bandgap nonfullerene acceptors DOI
Chaohua Cui, Yongfang Li

Energy & Environmental Science, Journal Year: 2019, Volume and Issue: 12(11), P. 3225 - 3246

Published: Jan. 1, 2019

The state-of-the-art conjugated polymer donor materials for high-performance solar cells based on narrow-bandgap nonfullerene acceptors are summarized and discussed.

Language: Английский

Citations

265
16% efficiency all-polymer organic solar cells enabled by a finely tuned morphology via the design of ternary blend DOI Creative Commons
Tao Liu, Tao Yang, Ruijie Ma

et al.

Joule, Journal Year: 2021, Volume and Issue: 5(4), P. 914 - 930

Published: March 7, 2021

Language: Английский

Citations

263
Compromising Charge Generation and Recombination of Organic Photovoltaics with Mixed Diluent Strategy for Certified 19.4% Efficiency DOI
Tianyi Chen, Shuixing Li,

Yaokai Li

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(21)

Published: March 3, 2023

The ternary blend is demonstrated as an effective strategy to promote the device performance of organic photovoltaics (OPVs) due dilution effect. While compromise between charge generation and recombination remains a challenge. Here, mixed diluent for further improving efficiency OPV proposed. Specifically, high-performance system with polymer donor, i.e., PM6, nonfullerene acceptor (NFA), BTP-eC9, diluted by diluents, which involve high bandgap NFA BTP-S17 low BTP-S16 (similar that BTP-eC9). better miscibility BTP-eC9 can dramatically enhance open-circuit voltage (VOC ), while maximizes or short-circuit current density (JSC ). interplay BTP-17 enables recombination, thus leading 19.76% (certified 19.41%), best among single-junction OPVs. Further analysis on carrier dynamics validates efficacy diluents balancing be attributed more diverse energetic landscapes improved morphology. Therefore, this work provides commercialization.

Language: Английский

Citations

259