Joule, Journal Year: 2023, Volume and Issue: 8(1), P. 204 - 223
Published: Dec. 1, 2023
Language: Английский
Chemical Reviews, Journal Year: 2022, Volume and Issue: 122(18), P. 14180 - 14274
Published: Aug. 5, 2022
Organic photovoltaics (OPVs) have progressed steadily through three stages of photoactive materials development: (i) use poly(3-hexylthiophene) and fullerene-based acceptors (FAs) for optimizing bulk heterojunctions; (ii) development new donors to better match with FAs; (iii) non-fullerene (NFAs). The application NFAs an A–D–A configuration (where A = acceptor D donor) has enabled devices efficient charge generation small energy losses (Eloss < 0.6 eV), resulting in substantially higher power conversion efficiencies (PCEs) than FA-based devices. discovery Y6-type (Y6 2,2′-((2Z,2′Z)-((12,13-bis(2-ethylhexyl)-3,9-diundecyl-12,13-dihydro-[1,2,5]-thiadiazolo[3,4-e]-thieno[2″,3″:4′,5′]thieno-[2′,3′:4,5]pyrrolo-[3,2-g]thieno-[2′,3′:4,5]thieno-[3,2-b]indole-2,10-diyl)bis(methanylylidene))bis(5,6-difluoro-3-oxo-2,3-dihydro-1H-indene-2,1-diylidene))dimalononitrile) A–DA′ D–A further propelled the PCEs go beyond 15% due smaller Eloss values (∼0.5 eV) external quantum efficiencies. Subsequently, Y6-series single-junction increased >19% may soon approach 20%. This review provides update recent progress OPV following aspects: developments novel donors, understanding structure–property relationships underlying mechanisms state-of-the-art OPVs, tasks underpinning commercialization such as device stability, module development, potential applications, high-throughput manufacturing. Finally, outlook prospects section summarizes remaining challenges technology.
Language: Английский
Citations
661
Advanced Materials, Journal Year: 2021, Volume and Issue: 34(46)
Published: Nov. 19, 2021
Ternary blend organic solar cells (TB-OSCs) incorporating multiple donor and/or acceptor materials into the active layer have emerged as a promising strategy to simultaneously improve overall device parameters for realizing higher performances than binary devices. Whereas introducing also results in more complicated morphology their counterparts. Understanding is crucially important further improving performance of TB-OSC. This review introduces solubility and miscibility that affect ternary blends. Then, this summarizes recent processes study on blends from aspects molecular crystallinity, packing orientation, domain size purity, directly observation morphology, vertical phase separation well morphological stability. Finally, summary prospects TB-OSCs are concluded.
Language: Английский
Citations
195
Energy & Environmental Science, Journal Year: 2023, Volume and Issue: 16(7), P. 3119 - 3127
Published: Jan. 1, 2023
Isomeric non-fullerene acceptor guest with large π-conjugation skeleton is used to construct stable organic solar cells efficiencies over 19%.
Language: Английский
Citations
166
Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 32(35)
Published: July 5, 2022
Abstract Symmetric conjugated molecules can be broken through suitable synthetic strategies to construct novel asymmetric molecules, which largely broaden the material library. In field of organic solar cells, fused‐ring electron acceptors (FREAs) with A‐DA'D‐A type backbone structure have attracted much attention and enabled power conversion efficiencies (PCE) exceeding 18%. Among them, Y6 is one most classic FREAs that derive many symmetric exhibit unique optoelectronic properties. Thus, in this review, focus on recent progress Y6‐derived containing a dipyrrolobenzothiadiazole segment, classified as following three categories: end group, central core side chain. The relationship molecular structure, properties, device performance discussed detail. Finally, future design directions challenges faced by kind photovoltaic materials are given.
Language: Английский
Citations
163
Advanced Materials, Journal Year: 2021, Volume and Issue: 33(49)
Published: Oct. 11, 2021
Top-performance organic solar cells (OSCs) consisting of conjugated polymer donors and nonfullerene small molecule acceptors (NF-SMAs) deliver rapid increases in efficiencies. Nevertheless, many the exhibit high stiffness are very brittle, which limit their applications wearable devices. Here, a simple effective strategy is reported to improve stretchability reduce high-efficiency polymer:NF-SMA blends simultaneously maintain efficiency by incorporating low-cost commercial thermoplastic elastomer, polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene (SEBS). The microstructure, mechanical properties, photovoltaic performance PM6:N3 with varied SEBS contents molecular weight dependence on microstructure properties thoroughly characterized. This for improvement exhibits excellent applicability some other OSC blend systems, e.g., PBQx-TF:eC9-2Cl PBDB-T:ITIC. More crucially, elastic modulus such complex ternary can be nicely predicted model. Therefore, elastomers widely applicable cost-effective OSCs beyond.
Language: Английский
Citations
160
Advanced Science, Journal Year: 2022, Volume and Issue: 9(30)
Published: Aug. 23, 2022
The large energy loss (Eloss ) is one of the main obstacles to further improve photovoltaic performance organic solar cells (OSCs), which closely related charge transfer (CT) state. Herein, ternary donor alloy strategy used precisely tune CT state (ECT and thus Eloss for boosting efficiency OSCs. elevated ECT in OSCs reduce generation (ΔECT ), promote hybridization between localized excitation nonradiative (ΔEnonrad ). Together with optimal morphology, afford an impressive power conversion 19.22% a significantly improved open-circuit voltage (Voc 0.910 V without sacrificing short-cicuit density (Jsc fill factor (FF) comparison binary ones. This contribution reveals that tuning via efficient way minimize
Language: Английский
Citations
152
Energy & Environmental Science, Journal Year: 2022, Volume and Issue: 15(4), P. 1563 - 1572
Published: Jan. 1, 2022
The addition of ZY-4Cl into the host PM6:BTP-eC9 can result in reduced density trap states and suppressed non-radiative recombination, thus enabling ternary device with an obviously lower voltage loss than either binary devices.
Language: Английский
Citations
134
Angewandte Chemie International Edition, Journal Year: 2021, Volume and Issue: 61(19)
Published: Dec. 28, 2021
Semitransparent organic solar cells (ST-OSCs) are considered as one of the most valuable applications OSCs and a strong contender in market. However, optical band gap current high-performance ST-OSCs is still not low enough to achieve optimal balance between power conversion efficiency (PCE) average visible transmittance (AVT). An N-substituted asymmetric nonfullerene acceptor SN with over 40 nm bathochromically shifted absorption compared Y6 was designed synthesized, based on which device PM6 donor obtained PCE 14.3 %, accompanied nonradiative voltage loss 0.15 eV. Meanwhile, ternary devices addition into : can 17.5 % an unchanged open-circuit improved short-circuit current. Benefiting from extended NIR lowered loss, were fabricated optimized demonstrated 14.0 at AVT 20.2 highest 20 %.
Language: Английский
Citations
131
Energy & Environmental Science, Journal Year: 2022, Volume and Issue: 15(6), P. 2479 - 2488
Published: Jan. 1, 2022
High efficiencies for organic solar cells are achieved. Two different morphology change paths revealed with both in situ and ex measurements.
Language: Английский
Citations
122
Energy & Environmental Science, Journal Year: 2022, Volume and Issue: 15(4), P. 1585 - 1593
Published: Jan. 1, 2022
An asymmetric wide-bandgap acceptor, namely AITC, is synthesized. The large dipole moment of AITC reinforces the molecular packing in ternary blends. Single-junction and tandem OSCs yielded a remarkable PCE 18.8% 19.4%, respectively.
Language: Английский
Citations
118