Easily Available High‐Performance Organic Solar Cells by Regulating Phenylalkyl Side Groups of Non‐Fused Ring Electron Acceptors DOI
Junjie Wang,

Qingrui Luan,

Pengchao Wang

et al.

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(31)

Published: April 14, 2023

Abstract Although non‐fused ring electron acceptors (NFREAs) have received increasing attention due to their relatively low synthetic costs, the achievement of high efficiencies strongly depends on tedious pre‐ or/and post‐treatments refine active layers, which in turn greatly increase fabrication complexity and expense organic solar cells (OSCs). Nowadays most available as‐cast devices based NFREAs are below 12% efficiencies. Herein, phenylalkyl category side groups (CnPh) employed construct new named BOR‐CnPh (n = 3, 4, 6), exhibit inherently decent molecular aggregation thus exclude additional treatments from device fabrication. The modified alkyl spacers CnPh not only trigger different acceptors, but also regulate interaction conformations donor (D) acceptor (A), D/A interactions. Encouragingly, pristine PBDB‐T:BOR‐C4Ph blend delivers intrinsic fibrous networks with dominating face‐on orientation, yields an optimal efficiency up 13.12%, ranks as highest value among OSCs NFREAs. This research provides a practical strategy control aggregations, interactions, heterojunction morphologies for easily high‐performance photovoltaics.

Language: Английский

Recent progress in organic solar cells (Part I material science) DOI
Yahui Liu, Bowen Liu, Chang‐Qi Ma

et al.

Science China Chemistry, Journal Year: 2021, Volume and Issue: 65(2), P. 224 - 268

Published: Dec. 27, 2021

Language: Английский

Citations

509
Completely non-fused electron acceptor with 3D-interpenetrated crystalline structure enables efficient and stable organic solar cell DOI Creative Commons

Lijiao Ma,

Shaoqing Zhang,

Jincheng Zhu

et al.

Nature Communications, Journal Year: 2021, Volume and Issue: 12(1)

Published: Aug. 24, 2021

Abstract Non-fullerene acceptors (NFAs) based on non-fused conjugated structures have more potential to realize low-cost organic photovoltaic (OPV) cells. However, their power conversion efficiencies (PCEs) are much lower than those of the fused-ring NFAs. Herein, a new bithiophene-based core (TT-P i ) featuring good planarity as well large steric hindrance was designed, which completely NFA, A4T-16, developed. The single-crystal result A4T-16 reveals that three-dimensional interpenetrating network can be formed due compact π–π stacking between adjacent end-capping groups. A high PCE 15.2% is achieved PBDB-TF:A4T-16, highest value for cells Notably, device retains ~84% its initial after 1300 h under simulated AM 1.5 G illumination (100 mW cm −2 ). Overall, this work provides insight into molecule design NFAs from aspect molecular geometry control.

Language: Английский

Citations

294
Advances in organic photovoltaic cells: a comprehensive review of materials, technologies, and performance DOI Creative Commons
Ebru Kondolot Solak, Erdal Irmak

RSC Advances, Journal Year: 2023, Volume and Issue: 13(18), P. 12244 - 12269

Published: Jan. 1, 2023

The paper analyzes the key features, performance, efficiency, and electrical characteristics of organic PV cells to highlight latest trends advancements by using comparative tables a comprehensive SWOT analysis.

Language: Английский

Citations

148
Simple Nonfused‐Ring Electron Acceptors with Noncovalently Conformational Locks for Low‐Cost and High‐Performance Organic Solar Cells Enabled by End‐Group Engineering DOI
Congqi Li, Xin Zhang, Na Yu

et al.

Advanced Functional Materials, Journal Year: 2021, Volume and Issue: 32(5)

Published: Oct. 20, 2021

Abstract The rapid advance of fused‐ring electron acceptors (FREAs) has greatly promoted the leap‐forward development organic solar cells (OSCs). However, synthetic complexity FREAs may be detrimental for future commercial applications. Recently, nonfused‐ring (NREAs) have been developed to a promising candidate maintain rational balance between cost and performance, which cores are composed simple fused rings (NREAs‐I) or nonfused (NREAs‐II). Moreover, “noncovalently conformational locks”, used as an effective strategy enhance rigidity planarity NREAs improve device performance. Herein, novel series NREAs‐II (PhO4T‐1, PhO4T‐2, PhO4T‐3) is constructed valuable platform exploring impact end group engineering on optoelectronic properties, intermolecular packing behaviors, As result, high power conversion efficiency 13.76% achieved PhO4T‐3 based OSCs, much higher than those PhO4T‐1 PhO4T‐2‐based devices. Compared with several representative FREAs, possesses highest figure‐of‐merit value 133.45 cost‐efficiency evaluation. This work demonstrates that simple‐structured candidates low‐cost high‐performance OSCs.

Language: Английский

Citations

121
Recent progress in low‐cost noncovalently fused‐ring electron acceptors for organic solar cells DOI Creative Commons

Qingqing Bai,

Qiming Liang,

Henan Li

et al.

Aggregate, Journal Year: 2022, Volume and Issue: 3(6)

Published: Oct. 13, 2022

Abstract The power conversion efficiencies (PCEs) of organic solar cells (OSCs) have improved considerably in recent years with the development fused‐ring electron acceptors (FREAs). Currently, FREAs‐based OSCs achieved high PCEs over 19% single‐junction OSCs. Whereas relatively synthetic complexity and low yield FREAs typically result production costs, hindering commercial application In contrast, noncovalently (NFREAs) can compensate for shortcomings facilitate large‐scale industrial by virtue simple structure, facile synthesis, yield, cost, reasonable efficiency. At present, based on NFREAs exceeded 15% are expected to reach comparable efficiency as Here, advances this review provide insight into improving performance particular, paper focuses effect chemical structures molecule conformation, aggregation, packing mode. Various molecular design strategies, such core, side‐chain, terminal group engineering, presented. addition, some novel polymer all‐polymer also introduced. end, provides an outlook developing efficient, stable, low‐cost achieving applications.

Language: Английский

Citations

101
Side-chain engineering of nonfullerene small-molecule acceptors for organic solar cells DOI
Zhenghui Luo, Tongle Xu, Cai’e Zhang

et al.

Energy & Environmental Science, Journal Year: 2023, Volume and Issue: 16(7), P. 2732 - 2758

Published: Jan. 1, 2023

This review summarizes the side-chain engineering of nonfullerene small-molecule acceptors (SMAs) in field organic solar cells, discusses key structure–property relationships depth and future directions engineering.

Language: Английский

Citations

77
Recent Developments of Polymer Solar Cells with Photovoltaic Performance over 17% DOI
Jianghao Jin,

Qiao Wang,

Kaige Ma

et al.

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(14)

Published: Jan. 22, 2023

Abstract With the emergence of ADA'DA‐type (Y‐series) non‐fullerene acceptors (NFAs), power conversion efficiencies (PCEs) organic photovoltaic devices have been constantly refreshed and gradually reached 20% in recent years (19% for single junction tandem device). The possess specific design concept, which greatly enrich NFA types excellent compatibility with many donor materials. It is gratifying to note that previously underperforming materials combine these regulated shine again. Nowadays, concept modular widely used research donors, injecting new vitality into field photovoltaics. Furthermore, also promote multicomponent devices, bilayer processing solvent engineering, additive engineering. Herein, latest progresses polymer solar cells efficiency over 17% are briefly reviewed from aspects active material design, interface development, device technology. At last, opportunities challenges commercialization future discussed.

Language: Английский

Citations

74
Benzothiadiazole-based polymer donors DOI

Peiqing Cong,

Zongtao Wang, Yanfang Geng

et al.

Nano Energy, Journal Year: 2022, Volume and Issue: 105, P. 108017 - 108017

Published: Nov. 17, 2022

Language: Английский

Citations

71
What We have Learnt from PM6:Y6 DOI Creative Commons
Safa Shoaee, Hoang Mai Luong, Jiage Song

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(20)

Published: Aug. 25, 2023

Abstract Over the past three years, remarkable advancements in organic solar cells (OSCs) have emerged, propelled by introduction of Y6—an innovative A‐DA'D‐A type small molecule non‐fullerene acceptor (NFA). This review provides a critical discussion current knowledge about structural and physical properties PM6:Y6 material combination relation to its photovoltaic performance. The design principles PM6 Y6 are discussed, covering charge transfer, transport, recombination mechanisms. Then, authors delve into blend morphology degradation mechanisms before considering commercialization. state art is presented, while also discussing unresolved contentious issues, such as energetics, pathways free generation, role triplet states recombination. As such, this aims provide comprehensive understanding potential for further development field cells. By addressing both successes challenges associated with system, contributes ongoing research efforts toward achieving more efficient stable

Language: Английский

Citations

59
Over 18% Efficiency Ternary Organic Solar Cells with 300 nm Thick Active Layer Enabled by an Oligomeric Acceptor DOI Open Access
Yanan Wei,

Yunhao Cai,

Xiaobin Gu

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(2)

Published: Sept. 18, 2023

The development of high-efficiency thickness-insensitive organic solar cells (OSCs) is crucially important for the mass production panels. However, increasing active layer thickness usually induces a substantial loss in efficiency. Herein, ternary strategy which an oligomer DY-TF incorporated into PM6:L8-BO system as guest component adopted to break this dilemma. S···F intramolecular noncovalent interactions backbone endow with high planarity. Upon addition DY-TF, crystallinity blend effectively improved, leading increased charge carrier mobility, highly desirable fabrication thick-film devices. As result, thin-film PM6:L8-BO:DY-TF-based device (110 nm) shows power conversion efficiency (PCE) 19.13%. Impressively, when increases 300 nm, 18.23% (certified 17.8%) achieved, representing highest reported nm thick OSCs thus far. Additionally, blade-coated (300 delivers promising PCE 17.38%. This work brings new insights construction efficient tolerance, showing great potential roll-to-roll printing large-area cells.

Language: Английский

Citations

49