Science China Chemistry, Journal Year: 2023, Volume and Issue: 66(9), P. 2513 - 2531
Published: July 27, 2023
Language: Английский
Science China Chemistry, Journal Year: 2023, Volume and Issue: 66(9), P. 2513 - 2531
Published: July 27, 2023
Language: Английский
Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)
Published: July 12, 2023
Abstract Distributed photovoltaics in living environment harvest the sunlight different incident angles throughout day. The development of planer solar cells with large light-receiving angle can reduce requirements installation form factor and is therefore urgently required. Here, thin film organic nano-sized phase separation integrated micro-sized surface topology demonstrated as an ideal solution to proposed applications. All-polymer cells, by means a newly developed sequential processing, show magnitude hierarchical morphology facilitated exciton-to-carrier conversion. nano fibrilar donor-acceptor network micron-scale optical field trapping structure combination contributes efficiency 19.06% (certified 18.59%), which highest value date for all-polymer cells. Furthermore, micron-sized also angle. A 30% improvement power gain achieved comparing flat-morphology devices. These inspiring results that cell features are particularly suitable commercial applications distributed due its low requirement.
Language: Английский
Citations
203Advanced Materials, Journal Year: 2023, Volume and Issue: 36(15)
Published: July 7, 2023
Abstract Using two structurally similar polymer acceptors in constructing high‐efficiency ternary all‐polymer solar cells is a widely acknowledged strategy; however, the focus thus far has not been on how acceptor(s) would tune aggregation of donors, and furthermore film morphology device performance (efficiency stability). Herein, it reported that matching celebrity acceptor PY‐IT donor PBQx‐TCl results enhanced H ‐ PBQx‐TCl, which can be finely tuned by controlling amount second PY‐IV. Consequently, efficiency‐optimized PY‐IV weight ratio (0.2/1.2) leads to state‐of‐the‐art power conversion efficiency 18.81%, wherein light‐illuminated operational stability also along with well‐protected thermal stability. Such enhancements stabilities attributed optimization desired glass transition temperature target active layer based comprehensive characterization. In addition being high‐power case for cells, these are successful attempt using combined toward optimal morphology, provides theoretical basis construction other types organic photovoltaics beyond cells.
Language: Английский
Citations
65Advanced Materials, Journal Year: 2023, Volume and Issue: 35(49)
Published: Oct. 12, 2023
Laboratory-scale all-polymer solar cells (all-PSCs) have exhibited remarkable power conversion efficiencies (PCEs) exceeding 19%. However, the utilization of hazardous solvents and nonvolatile liquid additives poses challenges for eco-friendly commercialization, resulting in trade-off between device efficiency operation stability. Herein, an innovative approach based on isomerized solid additive engineering is proposed, employing volatile dithienothiophene (DTT) isomers to modulate intermolecular interactions facilitate molecular stacking within photoactive layers. Through elucidating underlying principles DTT-induced polymer assembly level, a PCE 18.72% achieved devices processed with environmentally benign solvents, ranking it among highest record values all-PSCs. Significantly, such superiorities DTT-isomerized strategy afford excellent compatibility large-area blade-coating techniques, offering promising pathway industrial-scale manufacturing Moreover, these demonstrate enhanced thermal stability extrapolated T80 lifetime 14 000 h, further bolstering their potential sustainable technological advancement.
Language: Английский
Citations
56Chem, Journal Year: 2023, Volume and Issue: 9(7), P. 1702 - 1767
Published: June 21, 2023
Language: Английский
Citations
50Energy & Environmental Science, Journal Year: 2023, Volume and Issue: 16(11), P. 5052 - 5064
Published: Jan. 1, 2023
The established miscibility–function relationships are helpful to predict mechanical properties and stability in organic photovoltaic devices based on multicomponent systems.
Language: Английский
Citations
47Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(9), P. 4674 - 4706
Published: Jan. 1, 2024
This review summarizes the recent progress, key design principles and prospects of dimer multimer acceptors for developing polymer solar cells (PSCs) with high efficiency long-term stability.
Language: Английский
Citations
45Advanced Materials, Journal Year: 2024, Volume and Issue: unknown
Published: July 16, 2024
Double-fibril network morphology (DFNM), in which the donor and acceptor can self-assemble into a double-fibril structure, is beneficial for exciton dissociation charge transport organic solar cells. Herein, it demonstrated that such DFNM be constructed optimized all-polymer cells (all-PSCs) with assistance of 2-alkoxynaphthalene volatile solid additives. It revealed incorporation induce stepwise regulation aggregation molecules during film casting thermal annealing processes. Through altering alkoxy additives, both intermolecular interactions molecular miscibility host materials precisely tuned, allows optimization process facilitation self-assembly, thus leading to reinforced packing DFNM. As result, an unprecedented efficiency 19.50% (certified as 19.1%) obtained 2-ethoxynaphthalene-processed PM6:PY-DT-X all-PSCs excellent photostability (T
Language: Английский
Citations
35Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(14), P. 5191 - 5199
Published: Jan. 1, 2024
All-polymer solar cells with low voltage loss for efficient outdoor and indoor photovoltaics.
Language: Английский
Citations
29Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)
Published: Oct. 15, 2024
The high non-radiative energy loss is a bottleneck issue that impedes the improvement of organic solar cells. formation triplet exciton thought to be main source large loss. Decreasing rate back charge transfer considered as an effective approach alleviate relaxation charge-transfer state and generation. Herein, we develops efficient ternary system based on D18:N3-BO:F-BTA3 by regulating disorder blend. With addition F-BTA3, well-defined morphology with more condensed molecular packing obtained. Moreover, reduced demonstrated in blend, which decreases well formation, therefore hinders recombination pathways. Consequently, D18:N3-BO:F-BTA3-based device produces low 0.183 eV record-high efficiency 20.25%. This work not only points towards significant role suppression loss, but also provides valuable insight for enhancing performance OSCs. Here, authors regulate through system, achieving
Language: Английский
Citations
27Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(9)
Published: Jan. 3, 2024
Abstract Morphological control of all‐polymer blends is quintessential yet challenging in fabricating high‐performance organic solar cells. Recently, solid additives (SAs) have been approved to be capable tuning the morphology polymer: small‐molecule improving performance and stability devices. Herein, three perhalogenated thiophenes, which are 3,4‐dibromo‐2,5‐diiodothiophene (SA‐T1), 2,5‐dibromo‐3,4‐diiodothiophene (SA‐T2), 2,3‐dibromo‐4,5‐diiodothiophene (SA‐T3), were adopted as SAs optimize cells (APSCs). For blend PM6 PY‐IT, benefitting from intermolecular interactions between thiophenes polymers, molecular packing properties could finely regulated after introducing these SAs. In situ UV/Vis measurement revealed that assist morphological character evolution blend, leading their optimal morphologies. Compared as‐cast device : all SA‐treated binary devices displayed enhanced power conversion efficiencies 17.4–18.3 % with obviously elevated short‐circuit current densities fill factors. To our knowledge, PCE 18.3 for SA‐T1‐treated ranks highest among APSCs date. Meanwhile, universality SA‐T1 other demonstrated unanimously improved performance. This work provide a new pathway realizing APSCs.
Language: Английский
Citations
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