Breaking 20% Efficiency of all‐Polymer Solar Cells via Benzo[1,2‐d:4,5‐d′]Bisthiazole‐Based Terpolymer Donor Strategy for Fine Morphology Optimization DOI Open Access

Wuke Qiu,

Chentong Liao,

Yinfeng Li

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 15, 2025

Abstract Developing high‐performance all‐polymer solar cells (all‐PSCs) remains a challenge due to the difficulty in controlling morphology of polymer blends. In this study, benzo[1,2‐d:4,5‐d′]bisthiazole (BBTz) is incorporated into PM6 main chain create series terpolymer donors, leveraging entropy increase and superior miscibility with acceptors modulate blend morphology. The introduction BBTz broadened absorption range, enhanced film crystallinity, significantly improved donor‐acceptor through its low dipole moment high electrostatic potential. This facilitated formation nanofiber structures active layer, thus optimizing As result, PBZ‐10:PY‐IT‐based device achieved an impressive power conversion efficiency (PCE) 19.06%. Incorporation PBQx‐TF binary can further improve morphology, charge transport, exciton lifetime, dissociation, collection, as well suppressed recombination, finally leading record‐breaking PCE 20.04% for all‐PSCs date. findings demonstrate effectiveness strategy enhancing all‐PSC performance. By molecular design component selection, approach provides viable pathway achieving higher supports advancement renewable energy technologies.

Язык: Английский

Ternary Strategy Enables Non‐Halogenated Solvent‐Processed All‐Polymer Solar Cells with High Efficiency Over 18% DOI
Jiabin Zhang,

Qiuman Zhou,

Juxuan Xie

и другие.

Advanced Functional Materials, Год журнала: 2024, Номер 34(21)

Опубликована: Янв. 31, 2024

Abstract Herein, efficient ternary all‐polymer solar cells (all‐PSCs) are fabricated by employing PDEDTQ that possesses down‐shifted highest occupied molecular orbital (HOMO) level and blue‐shifted absorption with higher maximum coefficients compared the host donor JD40‐BDD20 as a guest into JD40‐BDD20:PA‐5 blend. The enhanced light‐harvesting energy transfer from to can be observed in device, which conduces improving short circuit current density ( J SC ). Additionally, shows relatively weak crystalline well miscibility JD40‐BDD20, meaning morphology tuned using PDEDTQ. Subsequently, more uniform fine‐divided network slightly weakened occurs blend film, implying intermixing domain of donor/acceptor (D/A) interfaces may formed. Thus, JD40‐BDD20:PA‐5, device obtained exciton dissociation charge extraction, reducing recombination loss E Ultimately, addition guaranteeing outstanding fill factor (FF), improve open voltage V OC ) achieved then boosted power conversion efficiency (PCE) 17.39% 18.47%, is one PCEs for all‐PSCs. Overall, this work provides guidance on forming high‐quality distribution D/A strategy, obtaining high‐efficiency all‐PSCs processed non‐halogenated solvent.

Язык: Английский

Процитировано

22
High efficiency and thermally stable ternary all-polymer solar cells achieved by alloyed vinyl-linked polymerized small-molecule acceptors DOI
Jin‐Woo Lee, Jinseck Kim, Trieu Hoang‐Quan Nguyen

и другие.

Nano Energy, Год журнала: 2024, Номер 122, С. 109338 - 109338

Опубликована: Янв. 25, 2024

Язык: Английский

Процитировано

21
18.6% Efficiency All‐Polymer Solar Cells Enabled by a Wide Bandgap Polymer Donor Based on Benzo[1,2‐d:4,5‐d′]bisthiazole DOI Open Access

Peixi Wu,

Yuwei Duan, Yinfeng Li

и другие.

Advanced Materials, Год журнала: 2023, Номер 36(3)

Опубликована: Сен. 28, 2023

The limited selection of wide bandgap polymer donors for all-polymer solar cells (all-PSCs) is a bottleneck problem restricting their further development and remains poorly studied. Herein, new polymer, namely PBBTz-Cl, designed synthesized by bridging the benzobisthiazole acceptor block chlorinated benzodithiophene donor with thiophene units application as an electron in all-PSCs. PBBTz-Cl not only possesses deep energy levels but also displays strong absorption, high-planar structure, good crystallinity, making it promising candidate organic cells. When paired narrow PY-IT, fibril-like morphology forms, which facilitates exciton dissociation charge transport, contributing to power conversion efficiency (PCE) 17.15% corresponding Moreover, when introducing another crystalline BTP-2T2F into PBBTz-Cl:PY-IT host blend, absorption ditch range 600-750 nm filled, blend optimized trap density reducing. As result, ternary all-PSCs achieve significantly improved PCE 18.60%, among highest values date.

Язык: Английский

Процитировано

44
Improving the Stability of Organic Solar Cells: From Materials to Devices DOI Open Access
Yanxun Li, Kai‐Kai Liu, Francis Lin

и другие.

Solar RRL, Год журнала: 2023, Номер 7(20)

Опубликована: Авг. 24, 2023

Organic solar cells (OSCs) are a promising emerging photovoltaic technology for energy conversion. Recently, the power conversion efficiencies of OSCs have been improved to get closer their Schottky–Queisser limit. However, operational stability remains as major challenge ahead deployment practical applications. The main causes OSC instability stem from poor intrinsic materials, metastable morphology multicomponent active layer, unstable interfaces, and sensitivity moisture oxygen. To address these issues, it is necessary comprehensive in‐depth understanding fundamentals develop an integrated solution overcome them. Herein, state‐of‐art strategies used improve aspects material design, device processing, encapsulation techniques, in hope delivering rational solutions, summarized. In end, prospects toward future development efficient stable provided.

Язык: Английский

Процитировано

37
18.1% Ternary All‐Polymer Solar Cells Sequentially Processed from Hydrocarbon Solvent with Enhanced Stability DOI
Chaoyue Zhao, Ruijie Ma,

Yiwen Hou

и другие.

Advanced Energy Materials, Год журнала: 2023, Номер 13(31)

Опубликована: Июль 6, 2023

Abstract All‐polymer solar cells (all‐PSCs) have promising potential for industrial production due to their superior stability. Recently, the widespread application of polymerized small molecule acceptor (PSMA) has led a surge in efficiency all‐PSCs. However, high efficiencies these devices generally rely on use highly volatile solvent, chloroform (CF). Furthermore, molecular weights PSMA are lower than polymer donors, yet crystallinity is weaker typical molecules, making most PSMA‐based all‐PSCs suffer from low electron mobility. To improve device performance and facilitate large scale all‐PSCs, it necessary enhance mobility avoid CF. This paper investigates sequential processing (SqP) active layer preparation using toluene as solvent address issues. work reports 18.1% efficient all‐PSC devices, which highest prepared non‐halogen solvents. systematically compares conventional blend‐casting method with SqP PM6 donor PY‐V‐ γ PJ1‐ acceptors, binary ternary blends both methods. Finally, this measures stability finds that can significantly photostability device.

Язык: Английский

Процитировано

32
Over 18% efficiency ternary all-polymer solar cells with high photocurrent and fill factor DOI Creative Commons

Jiali Song,

Chao Li,

Jiawei Qiao

и другие.

Matter, Год журнала: 2023, Номер 6(5), С. 1542 - 1554

Опубликована: Март 23, 2023

Язык: Английский

Процитировано

29
Polythiophene Derivatives for Efficient All‐Polymer Solar Cells DOI
Mingwei An,

Qingqing Bai,

Sang Young Jeong

и другие.

Advanced Energy Materials, Год журнала: 2023, Номер 13(30)

Опубликована: Июнь 19, 2023

Abstract Polymerized small molecule acceptors have recently greatly facilitated the development of all‐polymer solar cells (All‐PSCs) with respect to power conversion efficiencies (PCEs). However, high‐performance and low‐cost polymer donors for All‐PSCs are still lacking, limiting further large‐scale manufacturing All‐PSCs. Herein, this work designs synthesizes a new thiophene derivative, FETVT, featuring vinyl‐bridged fluorine ester‐substituted monothiophene. Incorporation FETVT into yields polythiophene derivative PFETVT‐T, which exhibits deep‐lying HOMO level, suitable solution pre‐aggregation ability, finely‐tuned crystallinity, appropriate thermodynamic miscibility acceptor L15. As result, binary based on PFETVT‐T achieves record PCE 11.81% agood stability, representing breakthrough polythiophenes their derivatives‐based All‐PSCs, is also significantly higher than that (1.92%) its isomerized analog. Remarkably, an impressive exceeding 16% via implementation ternary blend design. These findings offer hopeful pathway toward attaining high‐performance, stable, cost‐effective PSCs.

Язык: Английский

Процитировано

28
Eco-friendly volatile additive enabling efficient large-area organic photovoltaic module processed with non-halogenated solvent DOI
Ziyan Jia,

Jiannan Pan,

Xu Chen

и другие.

Energy & Environmental Science, Год журнала: 2024, Номер 17(11), С. 3908 - 3916

Опубликована: Янв. 1, 2024

Menthol (MT) can effectively promote ordered molecular arrangement of acceptors in non-halogenated solvent, contributing to the large-area organic photovoltaic modules (19.31 cm 2 ) with a notable power conversion efficiency (PCE) 15.74%.

Язык: Английский

Процитировано

18
Simultaneously Improved Stretchability, Stability, and Output Power in Solar Cells via Entanglement Control DOI
Kangkang Zhou,

Dexia Han,

Kaihu Xian

и другие.

Energy & Environmental Science, Год журнала: 2024, Номер 17(16), С. 5950 - 5961

Опубликована: Янв. 1, 2024

Intrinsically stretchable all-polymer solar cells with exceptional stability, stretchability, mechanical robustness (1000 cycles at 50% strain) and improved output power were developed via entangled polymer additive, which is widely applicable.

Язык: Английский

Процитировано

17
Numerical simulation of a highly efficient perovskite solar cell based on FeSi2 photoactive layer DOI Creative Commons
George G. Njema, Joshua K. Kibet, Nicholas Rono

и другие.

Nano Select, Год журнала: 2024, Номер 5(9)

Опубликована: Май 5, 2024

Abstract The primary aim of this work is to investigate the use iron di‐silicide (FeSi 2 ) as a photoactive layer in order achieve superior performance solar cell architecture—ITO/TiO /FeSi /CuSCN/Ni. optimum thickness absorber was found be 1000 nm, which gave optimal properties proposed cell—a short‐circuit current density ( J sc 51.41 mAm −2 , an open‐circuit voltage V oc 0.93 V, fill factor (FF) 77.99%, and power conversion efficiency (PCE) 37.17%. introduction ultrathin interfacial between electron transport (ETL), perovskite interface, hole (HTL) enhanced electrical output cell. increased 51.86 mAcm rose 0.97 while FF PCE 82.86% 41.84%, respectively. Accordingly, architecture promising can introduced into manufacturing workflow for commercial applications. Moreover, because its exceptional photon absorption capabilities, FeSi potentially excellent material fabrication. detailed findings study have therefore indicated that high‐performance ‐based achieved future.

Язык: Английский

Процитировано

12