Modulating Aggregation Behavior by Ternary Strategies for Efficient and Stable Thick‐Film Organic Solar Cells DOI
Jie Xu, Lei Wang, Seonghun Jeong

et al.

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

Published: Oct. 12, 2024

Abstract Functional third components targeted to improve a specific property of organic solar cells is an effective strategy. However, introducing component simultaneously efficiency and stability achieve good performance in thick‐film devices has rarely been reported. Herein, low diffusion IDCN ID2CN are reported power conversion (PCE) 18.08% high short‐circuit current ( J SC ) 27.82 mA cm −2 , one the highest values based on PM6:Y6. They increase light harvesting range 400–500 nm while enhancing energy transfer via Förster resonance (FRET). A tightly ordered molecular arrangement achieved by modulating preaggregation film formation kinetics Y6, which enhance exciton dissociation charge transport. Moreover, low‐diffusion can effectively restrict Y6 morphology stability, T 90 lifetime increased from 689 1545 h. In 300 devices, PM6:ID2CN:Y6 achieves PCE 15.01%, much higher than PM6:Y6's 12.83%, demonstrating great potential devices.

Language: Английский

Preparation of Dual-Asymmetric Acceptors via Selenium Substitution Combined with Terminal Group Optimization Strategy for High Efficiency Organic Solar Cells DOI
Haoran Yin, Yongjie Cui, Dong Chen

et al.

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 25, 2025

Improving both the open-circuit voltage (VOC) and short-circuit current density (JSC) through development of photovoltaic materials to achieve high power conversion efficiency (PCE) is critical a significant challenge for organic solar cells (OSCs). Here, we designed novel dual-asymmetric acceptors A-SSe-TCF A-SSe-LSF by simultaneously asymmetrically regulating backbone terminal groups investigated their synergistic effects on performance in comparison with monoasymmetric acceptor A-SSe-4F. The exhibit broader spectral absorption larger half-molecule dipole moment differences, which favored enhancement JSC reduction energy loss (Eloss). Among binary blends, PM6:A-SSe-TCF exhibits superior phase separation, vertical distribution morphology, more ordered π-π stacking compared PM6:A-SSe-LSF PM6:A-SSe-4F. As result, OSCs based achieved higher PCE 18.53% VOC due suppressed nonradiative recombination enhanced charge extraction capabilities. Furthermore, incorporating as third component, PM6:L8-BO:A-SSe-TCF-based device achieves champion 19.73% without account decrement Eloss. strategy provides new insights into molecular design improvement OSCs.

Language: Английский

Citations

1
Volatile Imide Additives with Large Dipole and Special Film Formation Kinetics Enable High‐Performance Organic Solar Cells DOI Open Access

Shuangshuang Xia,

Jie Xu, Zongtao Wang

et al.

Angewandte Chemie International Edition, Journal Year: 2025, Volume and Issue: unknown

Published: March 6, 2025

Large dipole moment additives have strong interactions with the host materials, which can optimize morphology and improve photovoltaic performance of organic solar cells (OSCs). However, these are difficult to remove due their intermolecular interactions, may impair stability. Developing volatile large moments is challenging. Herein, we first report imide that could effectively OSCs through modification. Three N-(o-chlorophenyl)phthalimide (oClPA), N-(m-chlorophenyl)phthalimide (mClPA), N-(p-chlorophenyl)phthalimide (pClPA) were screened investigate effort positional isomerization on molecular configuration interaction. These (ClPAs) larger (2.0664 Debye for oClPA, 4.2361 mClPA, 4.7896 pClPA) compared reported solid additives. In contrast traditional simultaneous nucleation crystal growth, ClPAs induce acceptor nucleate then grow, contributes forming high-quality domains better crystallinity. To our knowledge, this unique film formation kinetics was first. The power conversion efficiency (PCE) based PM6:BTP-eC9 treated pClPA improved from 16.13 % 18.58 %. Additive also performed well in PM6:L8-BO, PM6:Y6, D18:L8-BO systems, a high PCE 19.04 achieved. Our results indicate using unit construct simple effective strategy, halogen atom has effect performance.

Language: Английский

Citations

1
Volatile Imide Additives with Large Dipole and Special Film Formation Kinetics Enable High‐Performance Organic Solar Cells DOI Open Access

Shuangshuang Xia,

Jie Xu, Zongtao Wang

et al.

Angewandte Chemie, Journal Year: 2025, Volume and Issue: unknown

Published: March 6, 2025

Abstract Large dipole moment additives have strong interactions with the host materials, which can optimize morphology and improve photovoltaic performance of organic solar cells (OSCs). However, these are difficult to remove due their intermolecular interactions, may impair stability. Developing volatile large moments is challenging. Herein, we first report imide that could effectively OSCs through modification. Three N ‐( o ‐chlorophenyl)phthalimide ( ClPA), m p ClPA) were screened investigate effort positional isomerization on molecular configuration interaction. These (ClPAs) larger (2.0664 Debye for ClPA, 4.2361 4.7896 compared reported solid additives. In contrast traditional simultaneous nucleation crystal growth, ClPAs induce acceptor nucleate then grow, contributes forming high‐quality domains better crystallinity. To our knowledge, this unique film formation kinetics was first. The power conversion efficiency (PCE) based PM6:BTP‐eC9 treated ClPA improved from 16.13 % 18.58 %. Additive also performed well in PM6:L8‐BO, PM6:Y6, D18:L8‐BO systems, a high PCE 19.04 achieved. Our results indicate using unit construct simple effective strategy, halogen atom has effect performance.

Language: Английский

Citations

0
High-performance and scalable large-area organic solar cells enabled by alloy-like composite-induced optimized morphology processed from non-halogenated solvent in air DOI

Muhammad Jahankhan,

Du Hyeon Ryu, Dongchan Lee

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161811 - 161811

Published: March 1, 2025

Language: Английский

Citations

0
Ternary Blend Organic Photovoltaics with High Efficiency and Stability Through Energy Transfer and Molecular Packing Induced by an A‐D‐A Small Molecule DOI Creative Commons
Bin Chang,

Chung‐Hao Chen,

Atsushi Yabushita

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: April 21, 2025

Abstract A novel A‐D‐A type small molecule (DTP‐2EH‐IO2Cl) incorporating dithiophenepyrrole (DTP) core with indene‐dione (IO2Cl) side chain an intermediate band gap and rigid structure is incorporated into polymer donor PM6 one of the three A−DA′D−A acceptor—L8‐BO, BTP‐eC9 or Y6—for ternary‐blend organic photovoltaics (OPVs). The third component DTP‐2EH‐IO2Cl induces not only energy transfer but also stronger molecular packing acceptors, resulting in a larger coherence length enhanced absorption that enhances devices’ power conversion efficiencies (PCE) thermal stability. PCE values champion devices PM6:L8‐BO, PM6:BTP‐eC9, PM6:Y6 are 19.2, 18.3, 17.6%, respectively, versus 16.5, 15.8, 15.4% for their corresponding binary blend devices, displaying relative increases from 14 to 16%. stability (T 80 ) PM6:L8‐BO: ternary device dramatically 568 h 57 PM6:L8‐BO device. These enhancements can be attributed effectiveness as increasing light through inducing intermolecular providing effective way tune morphology boost both OPVs.

Language: Английский

Citations

0
Benzo[b]thiophene-Series Solid Additives for Improving the Morphology and Photovoltaic Performance of Organic Solar Cells DOI
Zhenjun Shan, Xiao Li, Zhimin Zhang

et al.

ACS Applied Polymer Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 20, 2025

Language: Английский

Citations

0
Crystallization-driven effect enables organic solar cells with efficiency exceeding 19.4 % DOI

Tengfei Han,

Jie Chi, Ran Dong

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 164137 - 164137

Published: May 1, 2025

Language: Английский

Citations

0
Modulating Aggregation Behavior by Ternary Strategies for Efficient and Stable Thick‐Film Organic Solar Cells DOI
Jie Xu, Lei Wang, Seonghun Jeong

et al.

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

Published: Oct. 12, 2024

Abstract Functional third components targeted to improve a specific property of organic solar cells is an effective strategy. However, introducing component simultaneously efficiency and stability achieve good performance in thick‐film devices has rarely been reported. Herein, low diffusion IDCN ID2CN are reported power conversion (PCE) 18.08% high short‐circuit current ( J SC ) 27.82 mA cm −2 , one the highest values based on PM6:Y6. They increase light harvesting range 400–500 nm while enhancing energy transfer via Förster resonance (FRET). A tightly ordered molecular arrangement achieved by modulating preaggregation film formation kinetics Y6, which enhance exciton dissociation charge transport. Moreover, low‐diffusion can effectively restrict Y6 morphology stability, T 90 lifetime increased from 689 1545 h. In 300 devices, PM6:ID2CN:Y6 achieves PCE 15.01%, much higher than PM6:Y6's 12.83%, demonstrating great potential devices.

Language: Английский

Citations

3