Advancing all-polymer solar cells with solid additives DOI Creative Commons
Xiaobai Ma, Qiang Fu, Jinwei Chen

et al.

Science China Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 4, 2024

Abstract All-polymer solar cells (all-PSCs) have attracted significant research attention in recent years, primarily due to their advantages of outstanding photo-thermal stability and excellent mechanical flexibility. However, all-PSCs typically exhibit complex morphologies during the film formation blend films, tendency become entangled polymer chains, negatively impacting fill factor (FF) morphology stability. Therefore, optimization co-mingled heterojunction is crucial for improving device performance. Recent studies reveal that solid additives (SAs) can realize regulation molecular aggregation state, packing, domain size active layer, which not only improves exciton dissociation, charge transport collection process but also ultimately realizes enhancement efficiency. this review provides an in-depth insight into different mechanisms all-PSCs, offering a comprehensive discussion on progress optimizing enhancing Finally, we present outlook further structural modification strategies towards better bulk paving way achieving stability, superior flexibility, high-efficiency all-PSCs.

Language: Английский

Narrowband Organic Photodetectors: From Fundamentals to Prospects DOI

Xingchao Zhao,

Jian Wang, Ming Liu

et al.

Advanced Optical Materials, Journal Year: 2024, Volume and Issue: 12(31)

Published: Aug. 27, 2024

Abstract Organic photodetectors (OPDs) have achieved rapid development due to the emergence of organic semiconducting materials with high absorption coefficient and tunable optical bandgap, as well progress in device physics engineering. The working mechanism fundamental parameters OPDs are briefly introduced. Some smart strategies for realizing performance photovoltaic type narrowband (PV‐NB‐OPDs) photomultiplication (PM‐NB‐OPDs) comprehensively reviewed. recent PV‐NB‐OPDs PM‐NB‐OPDs is systematically introduced from fundamentals prospects, exhibiting colorful application potential full‐color imaging, spectroscopic photodetection, medical monitoring, communication, which may promote their applications.

Language: Английский

Citations

27
Cascaded Energy and Charge Transfer Synergistically Prompting 18.7% Efficiency of Layered Organic Solar Cells with 1.48 eV Bandgap DOI Open Access
Lu Zhang, Hang Zhou, Yongchao Xie

et al.

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

Published: Jan. 2, 2025

Abstract Series of layer‐by‐layer organic solar cells (LOSCs) are constructed by sequentially spin‐coating donor layer and acceptor layers. A champion power conversion efficiency (PCE) 18.79% is achieved from the LOSCs with PBQx‐TCl/ITIC/PY‐DT as active layers, which should be one top values among OSCs optical bandgap over 1.48 eV. The middle material ITIC has a complementary photon harvesting range PBQx‐TCl PY‐DT, leading to enhanced Meanwhile, can play vital role in energy charge transfer relay increase exciton utilization transport, confirmed varied FFs normal or inverted ITIC/PY‐DT PY‐DT/ITIC Over 7% PCE improvement employing form cascaded This work may provide an efficient strategy for improving performance LOSCs.

Language: Английский

Citations

9
Over 19.2% Efficiency of Layer‐By‐Layer Organic Photovoltaics by Ameliorating Exciton Dissociation and Charge Transport DOI Open Access

Hongyue Tian,

Hang Zhou, Lu Zhang

et al.

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

Published: Jan. 26, 2025

Abstract Layer‐by‐layer (LbL) organic photovoltaics (OPVs) are fabricated with polymer PM1 as donor and small molecule L8‐BO acceptor by employing sequential spin‐coating technology. The BTP‐eC9 PTAA deliberately selected for individually incorporating into layer layer, resulting in the power conversion efficiency (PCE) increased from 18.22% to 19.23%. improvement of performance is attributed synergistically short circuit current density ( J SC ) 27.78 mA cm −2 fill factor (FF) 78.23%. introduction can promote photogenerated exciton dissociation, especially excitons near anode. Meanwhile, molecular crystallinity also enhanced appropriate layer. incorporation provide hole transport channels effectively improve holes generated self‐dissociation L8‐BO, FFs 77.40% synergistic effects layers result a 19.23% PCE optimized LbL‐OPVs. This work demonstrates that there great room hierarchically optimize achieving highly efficient

Language: Английский

Citations

3
The Phase Separation Control in All‐Polymer Solar Cells DOI Creative Commons
Qiuju Liang, Zongcheng Miao, Xingpeng Liu

et al.

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

Published: March 17, 2025

ABSTRACT All‐polymer solar cells (all‐PSCs) are of interest owing to their unique advantages, including remarkably improved device stability and exceptional mechanical stretchability. Over recent years, there has been a notable increase in the power conversion efficiency (PCE) all‐PSCs, largely attributed advancements morphology control active layer. Notably, domain size is paramount importance as it impacts critical factors such exciton dissociation, charge transport, collection. However, low glass transition temperature conjugated polymers, coupled with minimal change mixing entropy, often results an excessive degree phase separation. Consequently, essential comprehend evolution separation develop strategies regulate size. In this review, we elucidate key parameters that contribute enhancement present qualitative quantitative characterization techniques for Building on foundation, introduce principles regulating sizes, encompassing crystallinity, miscibility, molecular conformation from thermodynamic perspective, well film‐forming kinetics crystallization sequence kinetic perspective. Lastly, offer insights into current challenges potential future prospects all‐PSCs.

Language: Английский

Citations

3
Layered All‐Polymer Solar Cells with Efficiency of 18.34% by Employing Alloyed Polymer Donors DOI Open Access
Hang Zhou, Lu Zhang,

Hongyue Tian

et al.

Small, Journal Year: 2025, Volume and Issue: 21(11)

Published: Feb. 7, 2025

Abstract A series of layered all‐polymer solar cells (LA‐PSCs) with the normal or inverted structure are prepared by employing a sequential spin‐coating method PBQx‐TCl, PM1 as polymer donor, and PY‐DT acceptor. The power conversion efficiency (PCE) LA‐PSCs can be improved from 17.20% to 18.34% incorporating 30 wt.% into PBQx‐TCl layer, resulting simultaneously increased J SC 25.35 mA cm −2 , V OC 0.971 FF 74.49%. PCE improvement also achieved PBQx‐TCl:PM1 donor layers. mixed prefer form alloyed states in LA‐PSCs, which confirmed gradually s more content Meanwhile, photogenerated excitons layers dissociated at interface between PM1, especially for located near ITO electrode. exciton dissociation provide an additional channel improving utilization efficiency, positive external quantum spectral difference (∆EQE) values Over 6.6% realized using layer.

Language: Английский

Citations

2
Leveraging Compatible Iridium(III) Complexes to Boost Performance of Green Solvent‐Processed Non‐Fullerene Organic Solar Cells DOI Creative Commons
Xia Hao, Miao Zhang,

Huaxi Wang

et al.

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

Published: July 18, 2024

Abstract In organic solar cells (OSCs), the short exciton lifetime poses a significant limitation to diffusion and dissociation. Extending suppressing recombination are crucial strategies for improving OSC performance. Herein, an effective approach is proposed by introducing phosphorescent emitter, tris(2‐(4‐(tert‐butyl)phenyl)‐5‐fluoropyridine)Iridium(III), with long‐lived triplet in OSCs. This research reveals that steric structure of fac ‐Ir(tBufppy) 3 exhibits excellent compatibility both donor PM6 acceptor BTP‐eC9, maintaining efficiencies over 90% even 30% third component loading. Moreover, 10% addition mitigates excessive aggregation optimizing active layer morphology fill factor. Transient absorption spectroscopy transient photoluminescence measurements demonstrate introduction significantly extends lifetimes suppresses recombination, which increases short‐circuit current ( J SC ). Ultimately, employing non‐halogenated solvent o‐xylene processing, impressive power conversion efficiency (PCE) 18.54% achieved devices based on PM6:10% :BTP‐eC9, surpassing binary PM6:BTP‐eC9 (17.41%). work provides promising further improve PCEs OSCs iridium(III) complex as component.

Language: Английский

Citations

7
Dual-Donor-Induced Crystallinity Modulation Enables 19.23% Efficiency Organic Solar Cells DOI Creative Commons

Anhai Liang,

Yuqing Sun, Sein Chung

et al.

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 17(1)

Published: Nov. 27, 2024

Abstract Trap-assisted charge recombination is one of the primary limitations restricting performance organic solar cells. However, effectively reducing presence traps in photoactive layer remains challenging. Herein, wide bandgap polymer donor PTzBI-dF demonstrated as an effective modulator for enhancing crystallinity bulk heterojunction active layers composed D18 derivatives blended with Y6, leading to dense and ordered molecular packings, thus, improves photoluminescence quenching properties. As a result, photovoltaic devices exhibit reduced trap-assisted losses, achieving optimized power conversion efficiency over 19%. Besides enhancement, comprised third component simultaneously attain decreased current leakage, improved carrier mobilities, suppressed bimolecular recombination, energy losses. The advanced crystalline structures induced by its characteristics, such well-aligned level, complementary absorption spectra, are ascribed promising improvements. Our findings suggest that phase engineering feasible approach tuning packings layer, providing guidelines designing morphology modulators high-performance

Language: Английский

Citations

6
Design and virtual screening of donor and non-fullerene acceptor for organic solar cells using long short-term memory model DOI

Long-Fei Lv,

Cai‐Rong Zhang, Rui Cao

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(35), P. 23859 - 23871

Published: Jan. 1, 2024

In this study, we trained long short-term memory models to predict photovoltaic performance parameters. Additionally, cleaved and reorganized molecules obtain novel high-performance donor–acceptor pairs.

Language: Английский

Citations

5
Steric modulation of tetradentate platinum(II) bis-carbene complex enables over 18.4% efficiency of layer-by-layer all-polymer solar cells DOI
Yingjie Sun, Lu Zhang, Miao Zhang

et al.

Nano Energy, Journal Year: 2024, Volume and Issue: 130, P. 110174 - 110174

Published: Aug. 23, 2024

Language: Английский

Citations

4
An Arginine-Doped Cathode Interlayer Enables Enhanced Efficiency in Organic Solar Cells DOI

Yuanjian Chen,

Zhengli Zhang, Ruirui Cui

et al.

Energy & Fuels, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 15, 2025

The appearance of the cathode interlayer (CIL), a transition bridge between and organic photoactive layer (OPL), provides new pathway for performance improvement solar cells (OSCs). PFN-Br is widely employed in many optoelectronic devices, including nonfullerene OSCs, to transport electrons improve charge injection at interface. However, due relatively low conductivity PFN-Br, thickness CIL prepared with usually less than 10 nm, which evidently contradicts requirements large-scale roll-to-roll manufacturing. Herein, strategy using N-α-carbobenzyloxy-d-Arginine (NA) as doping material proposed PFN-Br. homogeneous distribution NA can modify work function (WF) facilitate an interface dipole arrangement that favorable transfer, resulting binary CILs tunable WF increased conductivity. To verify this method, series devices were PBDB-T:IT-M or PM6:Y6 OPL different proportions CIL. use PFN-Br:NA (0.75:0.06, weight%) helps morphology, making it exhibit trend fiber network structure, leading higher fill factor short circuit current density. Consequently, optimal power conversion efficiency (PCE) based on from 10.5% 11.1% 15.4% 16.0%, respectively. In addition, NA-doped device exhibits better nitrogen stability after 360 h dark storage compared control. discovery these modification approaches insight into hybrid interlayers required efficient reliable OSCs.

Language: Английский

Citations

0