19.34  cm<sup>2</sup> large-area quaternary organic photovoltaic module with 12.36% certified efficiency

Jia, Ziyan; Xu, Chunxiang; Yao, Jianguo; Yan, Bicheng; Sheng, Rui; Zhu, Haiming; Yang, Yang

doi:10.1364/prj.416229

Cited by 21 publications

(16 citation statements)

References 39 publications

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“…However, an inverted architecture may be better suited to future commercialization, as modules with this architecture are generally more stable than those with a regular architecture (see section ). Third, the fact that the three best OPV modules were all structured by laser ablation to yield GFFs of greater than 95% emphasizes the importance of high GFF values and an appropriate structuring technique for achieving high-efficiency modules. , …”

Section: Module Development Based On High-performance Oscsmentioning

confidence: 99%

Renewed Prospects for Organic Photovoltaics

et al. 2022

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Organic photovoltaics (OPVs) have progressed steadily through three stages of photoactive materials development: (i) use of poly(3-hexylthiophene) and fullerene-based acceptors (FAs) for optimizing bulk heterojunctions; (ii) development of new donors to better match with FAs; (iii) development of non-fullerene acceptors (NFAs). The development and application of NFAs with an A–D–A configuration (where A = acceptor and D = donor) has enabled devices to have efficient charge generation and small energy losses (E loss < 0.6 eV), resulting in substantially higher power conversion efficiencies (PCEs) than FA-based devices. The discovery of Y6-type acceptors (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) with an A–DA′ D–A configuration has further propelled the PCEs to go beyond 15% due to smaller E loss values (∼0.5 eV) and higher external quantum efficiencies. Subsequently, the PCEs of Y6-series single-junction devices have increased to >19% and may soon approach 20%. This review provides an update of recent progress of OPV in the following aspects: developments of novel NFAs and donors, understanding of the structure–property relationships and underlying mechanisms of state-of-the-art OPVs, and tasks underpinning the commercialization of OPVs, such as device stability, module development, potential applications, and high-throughput manufacturing. Finally, an outlook and prospects section summarizes the remaining challenges for the further development of OPV technology.

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Section: Module Development Based On High-performance Oscsmentioning

confidence: 99%

Renewed Prospects for Organic Photovoltaics

et al. 2022

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“…[8][9][10][11] However, scaling up the efficient OSCs into large areas through doctor-blade and slot-die coating is still challenging. [12][13][14][15][16] Processing window plays a crucial role in obtaining uniform large-area films and controlling the surface morphology.…”

Section: Introductionmentioning

confidence: 99%

Large‐Area Organic Solar Modules with Efficiency Over 14%

Dong

Jiang

Sun

et al. 2021

Adv Funct Materials

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It is still challenging to fabricate efficient large-area organic solar modules by solution processing. Processing window is important to obtain optimal aggregation of an active layer in large area for high efficiency. The star active layer of PM6:Y6 is processed from chloroform (for high efficiency) that has a narrow processing window due to the low boiling point of the solvent. In this work, the correlation between chemical structure (side chains) and processing solvents is investigated to obtain high efficiency and long processing windows. It is found that large side chains on the pyrrole ring are the key factor influencing the aggregation of active layer films. Short side chain (in Y6 and Y6-1O) will cause excess aggregation when processed from high-boiling-point solvent (chlorobenzene, CB), while long side-chain (in BTP-BO-4F, BTP-BO-4Cl, and BTP-eC9) can inhibit such aggregation and maintain high photovoltaic performance when processed from CB with wide processing window. In the end, over 25 cm 2 organic solar module via doctor blading based on PM6:BTP-eC9 active layer has been fabricated with a PCE of 14.07%.

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“…The 1 cm 2 monolithic photovoltaic module is fabricated with the same device structure and film formation method, two sub cells were serially connected, and the series connections were made through the typical P1−P3 laser scrupling technique. 32 Film and Device Characterization. X-ray photoelectron spectroscopy (XPS) measurements were carried out on an Omicron ESCA Probe XPS spectrometer (Thermo Scientific ESCALAB 250Xi) using 150 eV pass energy and 1 eV step size for survey scans and 20 eV pass energy and 0.01 eV step size for fine scans.…”

Section: ■ Methodsmentioning

confidence: 99%

“…Each prepared device has the active area of 0.0481 cm t (determined by the photo mask aperture area, which is measured by Newport PV lab). The 1 cm 2 monolithic photovoltaic module is fabricated with the same device structure and film formation method, two sub cells were serially connected, and the series connections were made through the typical P1–P3 laser scrupling technique …”

Section: Methodsmentioning

confidence: 99%

Characterizations and Understanding of Additives Induced Passivation Effects in Narrow-Bandgap Sn–Pb Alloyed Perovskite Solar Cells

et al. 2021

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Narrow-bandgap Sn–Pb alloyed perovskite solar cells have higher SQ limits than the widely studied lead based perovskites, but they often suffer from more severe energy losses. Pb(SCN)2 and SnF2 additives were widely used in those narrow-bandgap perovskite solar cells, but the underlying mechanisms were not much understood yet. Here, we employed spatially and time-resolved spectroscopies to investigate the additive effects. We find the SnF2 additive mainly works as morphology modifiers, while Pb(SCN)2 plays little roles in film formation but significantly alters the charge carriers dynamic especially at grain boundaries and eliminates the density of defect states. A small device with power conversion efficiency (PCE) of 18.1% and fill factor as high as 82.4% were realized by the synergetic effects of SnF2 and Pb(SCN)2 additives, and a large area mini module device with 15.5% PCE was also successfully demonstrated.

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19.34 cm² large-area quaternary organic photovoltaic module with 12.36% certified efficiency

Cited by 21 publications

References 39 publications

Renewed Prospects for Organic Photovoltaics

Renewed Prospects for Organic Photovoltaics

Large‐Area Organic Solar Modules with Efficiency Over 14%

Characterizations and Understanding of Additives Induced Passivation Effects in Narrow-Bandgap Sn–Pb Alloyed Perovskite Solar Cells

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19.34 cm2 large-area quaternary organic photovoltaic module with 12.36% certified efficiency

Cited by 21 publications

References 39 publications

Renewed Prospects for Organic Photovoltaics

Renewed Prospects for Organic Photovoltaics

Large‐Area Organic Solar Modules with Efficiency Over 14%

Characterizations and Understanding of Additives Induced Passivation Effects in Narrow-Bandgap Sn–Pb Alloyed Perovskite Solar Cells

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19.34 cm² large-area quaternary organic photovoltaic module with 12.36% certified efficiency