Non‐Halogenated Solvent Processed Ternary All‐Polymer Solar Cell with PCE of 18.55% Enabled by Two Compatible Polymer Acceptors† DOI Creative Commons

Rouren Chen,

Tianyi Zhang,

Qiqing Ruan

et al.

Chinese Journal of Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: May 29, 2025

Comprehensive Summary Herein, a theory‐guided ternary construction case on boosting power conversion efficiency (PCE) for all‐polymer solar cell (all‐PSC) is reported, where guest acceptor's characteristics include high miscibility with host polymer acceptor, significantly larger optical bandgap, and improved luminescence. Consequently, only 10 wt% PFFO‐Th (third component) addition, the PCE of binary control promoted to 18.55% from 16.69%, 11.1% relative increase, demonstrating great effectiveness this strategy. Besides, realized at state‐of‐the‐art level all‐PSCs processed by ortho ‐xylene, widely acknowledged green non‐ halogenated solvent field. This study shares new thought designing high‐performance photovoltaic devices reduced energy losses favorable charge dynamics, which would nourish future development all‐PSCs, even other organic electronics.

Language: Английский

Rhodanine Substitution of Asymmetric Nonfullerene Acceptors for High-Performance Organic Solar Cells DOI
Qingbin Li, Yang Bai, Shuai Jiang

et al.

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

Published: Jan. 29, 2025

Asymmetric substitution is acknowledged as a straightforward yet potent approach for the optimization of small molecule acceptors (SMAs), thereby enhancing power conversion efficiency (PCE) organic solar cells (OSCs). In this work, we have successfully engineered and synthesized novel asymmetric SMA, designated Y6-R, which features rhodanine-terminated inner side-chain. devices with PM6 polymer donor, Y6-R demonstrated an impressive PCE 18.62% open-circuit voltage (Voc) 0.863 V, short-circuit current (Jsc) 27.89 mA cm-2, fill factor (FF) 77.35%, much higher than that symmetric SMA Y6-based (16.84%). The superior performance PM6:Y6-R can be attributed to combination factors, including upshifted LUMO energy levels, more desired exciton dissociation, collection, extraction capability, well reduced recombination suppressed Eloss. addition, molecules promote coaggregation behaviors along endowing stronger ordered crystallinity blend films. Our findings underscore effectiveness rhodanine-substitution, representative "A" units, SMAs in fine-tuning behavior efficiency.

Language: Английский

Citations

2
Controlling Morphology and Improving Stability with High-Boiling-Point Additive for Efficient Organic Solar Cells DOI
Shilong Xiong, Yiwu Zhu, Yunpeng Wang

et al.

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

Published: March 17, 2025

The rapid advancement of solar photovoltaic technology underscores the growing significance organic cells (OSCs) in renewable energy solutions. A critical challenge optimizing OSC performance lies achieving precise control over active layer nanomorphology. In this study, we innovatively introduce a high-boiling-point liquid additive, 1,2,4-trichlorobenzene (1,2,4-TCB), as superior alternative to conventional additive 1,8-diiodooctane (DIO). Compared DIO, 1,2,4-TCB significantly enhances molecular ordering acceptors and improves miscibility between donor (D18) acceptor (Y6) materials, leading notable increase power conversion efficiency (PCE) from 17.56% 18.80%. It has been revealed that promotes packing, particularly for molecules grazing incidence wide-angle X-ray scattering. contact angle measurements further demonstrate improved donor–acceptor miscibility, resulting an optimized bicontinuous interpenetrating network morphology. This morphology effectively exciton separation, facilitates charge transport, minimizes recombination losses. addition improvements, 1,2,4-TCB-based devices exhibit exceptional photostability (T80 = 981 h) storage stability 2708 h), outperforming their DIO-based counterparts. These findings not only establish potential additives like boosting but also provide promising strategy advance commercial viability technology.

Language: Английский

Citations

0
Transparent and flexible organic bulk heterojunction photonic synapse for neuromorphic computing and reflex arc behavior DOI Creative Commons
Hong Lian, Shuanglong Wang,

Zhitao Qin

et al.

Device, Journal Year: 2025, Volume and Issue: unknown, P. 100749 - 100749

Published: March 1, 2025

Language: Английский

Citations

0
Impact of Symmetric vs Asymmetric Conjugated Extensions in Acceptors on the Photovoltaic Performance of Organic Solar Cells DOI
Jie Wang, Xin Chen, Wenkai Zhao

et al.

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 111028 - 111028

Published: April 1, 2025

Language: Английский

Citations

0
Lowering Toxicity of Solvent in Organic Solar Cells Manufacturing for 20% Efficiency DOI

Rui Zeng,

Qianqian Zhang, Wenkai Zhong

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 23, 2025

Abstract Thin film organic photovoltaics (OPVs) aim to harness solar energy environmentally friendly, highly efficient, and cost‐effective means, thereby offering a sustainable solution for production ecological preservation. Efforts are undertook optimize engineering preparation technology OPV devices mini‐modules, through the development of low‐ecological‐impact solvent processing method. A newly developed strategy employing benign o ‐xylene (OXY) with synergistic dual additives (DIM DIB) achieved an optimal power conversion efficiency (PCE) 20.0% ( J SC 26.6 mA cm −2 , V OC 0.935 V, FF 80.3%) alongside exceptional stability metrics (82%–1500h). The mini‐module processed optimized TCE:OXY (1:3 v/v) demonstrated scalable performance reaching 17.6% (18.4 2 ), representing highest in safe based OPVs. Suitable microscale patterns contributed broader range receiving angles, enabling more flexible installation geometries building‐integrated applications.

Language: Английский

Citations

0
High Efficiency Non‐Halogenated Solvent Processed Organic Solar Cells Through Synergistic Effects of Layer‐by‐Layer and Solid Additive DOI
Hui Li, Longfei Liu,

Jiangkai Yu

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 24, 2025

Abstract In the field of organic solar cells (OSCs), bulk heterojunction (BHJ) structure is most widely used. On contrary, layer‐by‐layer (LBL) gives a p‐i‐n separation where donor close to transparent electrode while acceptor reflective electrode, which shows be an ideal for OSCs. this work, volatile solid additives 2,5‐dibromoprazine (DBP) and 2‐bromine‐5‐iodopyrazine (BIP) are introduced regulate morphology LBL active layers. Comprehensive analysis reveals that DBP BIP can promote stronger molecular packing crystallinity BTP‐eC9, resulting in higher charge mobility, more efficient separation, suppressed bimolecular recombination significantly improve device filling factor (FF), especially devices. Consequently, by combining engineering additive BIP, outstanding power conversion efficiency (PCE) 19.63% based on PM1/BTP‐eC9 achieved further applied PM1/BTP‐eC9:eC9‐2Cl ternary system, PCE exceeded 20%. The results provide comprehensive insights into synergistic effect high‐performance photovoltaics.

Language: Английский

Citations

0
Conjugated Side‐Chains Optimize Giant Acceptor Compatibility with Low‐Cost Polymer Donor to Overcome the Cost‐Efficiency‐Stability Trilemma in Polymer Solar Cells DOI
Qi Chen, Qingyuan Wang,

Shixin Meng

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 7, 2025

Abstract Polymer solar cells (PSCs) rely on blends of small‐molecule acceptors (SMAs) and polymer donors, but the thermodynamic relaxation SMAs requires an oligomeric approach to enhance operational stability. However, high‐efficiency devices often depend expensive synthesis costly posing a significant barrier achieving sustainable renewable energy. Here, challenge is addressed through thermodynamically derived compatibility giant with low‐cost donor PTQ10. This achieved by strategically employing conjugated side chains modulate dimerize acceptors, thereby precisely tuning their properties optimize compatibility. Our synthetic route avoids toxic reagents, halogenated solvents, harsh conditions. The dimer (DYBT) incorporating n ‐type linker enhances crystallinity, absorption, intramolecular superexchange coupling compared its p counterpart, achieves device efficiency 19.53%. Considering efficiency, stability, material cost, potential cost per kilowatt for PTQ10:DYBT 0.10 $ kW −1 , while most systems exceed 10 . These findings offer valuable insights cost‐effective well pair donors reduce overall photo‐active layer durable

Language: Английский

Citations

0
Organic solar cells: beyond 20% DOI
Ruijie Ma, Zhenghui Luo,

Youdi Zhang

et al.

Science China Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 30, 2025

Language: Английский

Citations

0
Synthesis of Ether-Bonded Perylene Diimide Oligomers without Noble-Metal Catalysts for Organic Solar Cells DOI

Zhu Wang,

Yinuo Wang,

Fengbo Sun

et al.

Dyes and Pigments, Journal Year: 2025, Volume and Issue: unknown, P. 112892 - 112892

Published: May 1, 2025

Language: Английский

Citations

0
Non‐Halogenated Solvent Processed Ternary All‐Polymer Solar Cell with PCE of 18.55% Enabled by Two Compatible Polymer Acceptors† DOI Creative Commons

Rouren Chen,

Tianyi Zhang,

Qiqing Ruan

et al.

Chinese Journal of Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: May 29, 2025

Comprehensive Summary Herein, a theory‐guided ternary construction case on boosting power conversion efficiency (PCE) for all‐polymer solar cell (all‐PSC) is reported, where guest acceptor's characteristics include high miscibility with host polymer acceptor, significantly larger optical bandgap, and improved luminescence. Consequently, only 10 wt% PFFO‐Th (third component) addition, the PCE of binary control promoted to 18.55% from 16.69%, 11.1% relative increase, demonstrating great effectiveness this strategy. Besides, realized at state‐of‐the‐art level all‐PSCs processed by ortho ‐xylene, widely acknowledged green non‐ halogenated solvent field. This study shares new thought designing high‐performance photovoltaic devices reduced energy losses favorable charge dynamics, which would nourish future development all‐PSCs, even other organic electronics.

Language: Английский

Citations

0