Dual Additive Strategy with Quasi-Planar Heterojunction Architecture Assisted in Morphology Optimization for High-Efficiency Organic Solar Cells DOI

Waqar Ali Memon,

Yiwu Zhu, Shilong Xiong

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 5, 2024

Achieving high-performance and stable organic solar cells (OSCs) remains a critical challenge, primarily due to the precise optimization required for active layer morphology. Herein, this work reports dual additive strategy using 3,5-dichlorobromobenzene (DCBB) 1,8-diiodooctane (DIO) optimize morphology of both bulk-heterojunction (BHJ) quasi-planar heterojunction (Q-PHJ) based on donor D18 acceptor BTP-eC9. The systematic results reveal that significantly promotes phase separation while inhibiting excessive aggregation, which, in turn, improves molecular order crystallization. As result, BHJ Q-PHJ OSCs processed with DIO + DCBB achieve impressive power conversion efficiencies 17.77% 18.60%, respectively, highest reported values additive-processed OSCs. superior performance is attributed improved charge transport reduced recombination losses, as evidenced by higher short-circuit current densities (JSC) fill factors (FF). Importantly, either or DCBB, comparison OSCs, exhibit exceptional shelf-stability, maintaining 80% their initial efficiency after 2660 2193 h, respectively. These findings underscore potential strategies advance development stable, high-efficiency suitable large-area fabrication, marking significant step forward renewable energy technology.

Language: Английский

1,5-Diiodocycloctane: a cyclane solvent additive that can extend the exciton diffusion length in thick film organic solar cells DOI

Fengbo Sun,

Xufan Zheng, Tianyu Hu

et al.

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(5), P. 1916 - 1930

Published: Jan. 1, 2024

The addition of cyclane 1,5-diiodocycloctane (DICO) provides critical roles in extending exciton diffusion length within active layer, consequently contributing to the improvement power conversion. efficiency thick film organic solar cells.

Language: Английский

Citations

58
An Efficient and Stable Inverted Structure Organic Solar Cell Using ZnO Modified by 2D ZrSe2 as a Composite Electron Transport Layer DOI
Hongye Li, Bo Yu, Huangzhong Yu

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(37)

Published: April 10, 2024

Abstract As an electron transport layer (ETL) widely used in organic solar cells (OSCs), ZnO has problems with energy level mismatch the active and excessive defects on surface, which can reduce efficiency of OSCs. Here, ZnO/ZrSe 2 composite is fabricated by modifying 2D ZrSe . The XPS first‐principles calculation (FPC) show that obtains electrons from forms interfacial dipoles toward layer, decreases work function ZnO, thus reducing interface barrier favoring collection At same time, after modification, oxygen vacancy density surface decreases, improving conductivity ZnO. More importantly, femtosecond transient absorption (Fs‐TA) shows selectively traps holes prevents entering thereby probability recombination. Finally, as a novel ETL OSCs PBDB‐T: ITIC, PM6:Y6 PM6: L8‐BO layers, obtaining 12.09%, 16.34%, 18.24% efficiency, respectively. This study provides method for modification further investigates role nanosheets modification.

Language: Английский

Citations

28
A benzobisoxazole-based polymer assisting high efficiency polymer solar cells DOI
Hui Sheng, Shizhao Liu, Kang Xiao

et al.

Nano Energy, Journal Year: 2024, Volume and Issue: 126, P. 109648 - 109648

Published: April 21, 2024

Language: Английский

Citations

7
The Critical Isomerization Effect of Core Bromination on Nonfullerene Acceptors in Achieving High‐Performance Organic Solar Cells with Low Energy Loss DOI Open Access
Kerui Liu, Yuanyuan Jiang, Feng Liu

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 30, 2024

Highly efficient nonfullerene acceptors (NFAs) for organic solar cells (OSCs) with low energy loss (E

Language: Английский

Citations

7
Medium‐Bandgap Acceptors for Efficient Ternary Organic Solar Cells Achieved by End‐Group Engineering DOI
Long Chen, Yuanyuan Liu, Huiqiu Deng

et al.

Solar RRL, Journal Year: 2025, Volume and Issue: unknown

Published: March 18, 2025

The ternary strategy has been evidenced as one of the most crucial methods to improve photovoltaic performance organic solar cells. However, selection and design third components are decisive factors facilitating progress cells (TOSCs). In this study, focuses concentrated on D18‐Cl:N3 binary host device by developing a weakly electron‐withdrawing end group synthesizing guest acceptor, BTP‐CM, which holds similar backbone N3. structure resemblance ensures good compatibility molecule with N3, improves charge transport reduces recombination. Thereby, D18‐Cl:N3:BTP‐CM‐based TOSC exhibits an improved power conversion efficiency 18.32%, compared 17.13% device. This work provides effective for acceptors, aims introduce new groups obtain molecules complementary absorptions matched energy levels while preserving molecular acceptor.

Language: Английский

Citations

1
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
High-Crystallinity Polymer-Driven Fiber Network Morphology Optimization for Efficient Ternary All-Polymer Organic Solar Cells DOI
F. Xiao‐Feng Qin, Wenming Li, Chengcheng Xie

et al.

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

Published: May 8, 2025

Language: Английский

Citations

0
Synergistic regulation of the active layer morphology by halogenated methoxybenzene derivative solid additives for high-performance organic solar cells DOI
Wenming Li, Chengcheng Xie, F. Xiao‐Feng Qin

et al.

Materials Today Chemistry, Journal Year: 2025, Volume and Issue: 46, P. 102730 - 102730

Published: May 9, 2025

Language: Английский

Citations

0
Additive-assisted molecular aggregation manipulation towards efficient thick organic solar cells DOI Creative Commons

Xueting Yi,

Zekun Liu,

Mengan Zhao

et al.

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

The additive 1-phenylnaphthalene (PN) with large steric hindrance is used to promote J-aggregation of N3 molecules, which conductive broadening absorption spectra and improving charge transport for high-performance thick OSCs.

Language: Английский

Citations

2
Designing a Highly Crystalline Polymer Donor with Alkylsilyl and Fluorine Substitution to Achieve Efficient Ternary Organic Solar Cells DOI

Zhigang Xu,

Bo Du,

Panpan Zhang

et al.

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

Published: Oct. 23, 2024

Abstract Adopting a ternary strategy is an effective approach to enhance the power conversion efficiency (PCE) in organic solar cells (OSCs). Previous research on highly efficient systems has predominantly focused those based crystalline dual small molecule acceptors. However, limited attention been given utilizing polymer donors. Herein, by incorporating fluorine and alkylsilyl substitution, new donor named PX1 developed, which demonstrates strong crystallinity excellent miscibility with PM6. Moreover, broadens enhances absorption properties of PM6:L8‐BO blends, its molecular orbital energy level situated between PM6 L8‐BO, highlighting suitability as third component. Introducing 20% into system resulted high PCE 18.82%. effectively suppresses charge recombination reduces losses, while also serving morphology modulator that crystallization improves packing order active layer shortening π–π stacking distance extending coherence length. These factors collectively contribute performance improvements devices. This study employing promising for achieving high‐performance OSCs.

Language: Английский

Citations

2