Semitransparent polymer solar cells with 12.37% efficiency and 18.6% average visible transmittance

Hu, Zhenghao; Wang, Zhi; An, Qiaoshi; Zhang, Fujun

doi:10.1016/j.scib.2019.09.016

Cited by 167 publications

(52 citation statements)

References 61 publications

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“…The more efficient charge transport in the optimized ternary active layers can be further confirmed from the well-balanced charge mobility dependence on MF1 content. The exciton dissociation efficiency (g d ) or charge transport and collection efficiency (g c ) can be estimated by the J ph /J sat values under short circuit conditions and maximum power output conditions, respectively [50][51][52][53]. The g d of the optimized ternary PSCs is 95.18% and slightly larger than 94.50% of Y6 based binary PSCs, suggesting that phase separation can be well optimized by incorporating appropriate MF1 for efficient exciton dissociation.…”

Section: Resultsmentioning

confidence: 99%

Alloy-like ternary polymer solar cells with over 17.2% efficiency

et al. 2020

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Section: Resultsmentioning

confidence: 99%

Alloy-like ternary polymer solar cells with over 17.2% efficiency

et al. 2020

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“…And state‐of‐the‐art PCEs of over 16% have been achieved with single‐junction solar cells based on Y6 and its derivatives . Besides, semitransparent polymer solar cells based on PM6:Y6 with PCE of over 12% and AVT of over 18% have also been demonstrated . Lee et al prepared low‐bandgap small molecules COTIC‐4F and SiOTIC‐4F that are based on the A‐D′‐D‐D′‐A structure using cyclopentadithiophene (or dithienosilole) and alkoxythienyl as donor units and 2‐(5,6‐difluoro‐3‐oxo‐2,3‐dihydro‐1 H ‐inden‐1‐ylidene) malononitrile as acceptor unit .…”

Section: Nir Photoelectric Materials For Opvsmentioning

confidence: 99%

Near‐infrared organic photoelectric materials for light‐harvesting systems: Organic photovoltaics and organic photodiodes

Xie

Chen

Ying

et al. 2019

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The inherent advantages of organic optoelectronic materials endow lightharvesting systems, including organic photovoltaics (OPVs) and organic photodiodes (OPDs), with multiple advantages, such as low-cost manufacturing, light weight, flexibility, and applicability to large-area fabrication, make them promising competitors with their inorganic counterparts. Among them, nearinfrared (NIR) organic optoelectronic materials occupy a special position and have become the subject of extensive research in both academia and industry.The introduction of NIR materials into OPVs extends the absorption spectrum range, thereby enhancing the photon-harvesting ability of the devices, due to which they have been widely used for the construction of semitransparent solar cells with single-junction or tandem architectures. NIR photodiodes have tremendous potential in industrial, military, and scientific applications, such as remote control of smart electronic devices, chemical/biological sensing, environmental monitoring, optical communication, and so forth. These practical and potential applications have stimulated the development of NIR photoelectric materials, which in turn has given impetus to innovation in light-harvesting systems. In this review, we summarize the common molecular design strategies of NIR photoelectric materials and enumerate their applications in OPVs and OPDs. K E Y W O R D Snear infrared, organic optoelectronic materials, organic photodiodes, organic photovoltaics

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“…The small-molecule acceptor Y6 is a sensational achievement for pioneering in breaking the PCE bottleneck of 15% for binary PSCs. Therefore, plenty of work related to this innovative system has been carried out together with extraordinary PCE surpassing 16% [54][55][56][57][58][59]. Since PM6:Y6-based devices have a relatively low V OC compared with other binary PSCs, PCE can be boosted by increasing the V OC [60][61][62][63][64].…”

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Improving open-circuit voltage by a chlorinated polymer donor endows binary organic solar cells efficiencies over 17%

et al. 2020

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Power conversion efficiency (PCE) of single-junction polymer solar cells (PSCs) has made a remarkable breakthrough recently. Plenty of work was reported to achieve PCEs higher than 16% derived from the PM6:Y6 binary system. To further increase the PCEs of binary OSCs incorporating small molecular acceptor (SMA) Y6, we substituted PM6 with PM7 due to the deeper highest occupied molecular orbital (HOMO) of PM7. Consequently, the PM7:Y6 has achieved PCEs as high as 17.0% by the hotcast method, due to the improved open-circuit voltage (V OC ). Compared with PM6, the lower HOMO of PM7 increases the gap between E LUMO-donor and E HOMO-acceptor , which is proportional to V OC . This research provides a high PCE for single-junction binary PSCs, which is meaningful for device fabrication related to PM7 and commercialization of PSCs.

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Semitransparent polymer solar cells with 12.37% efficiency and 18.6% average visible transmittance

Cited by 167 publications

References 61 publications

Alloy-like ternary polymer solar cells with over 17.2% efficiency

Alloy-like ternary polymer solar cells with over 17.2% efficiency

Near‐infrared organic photoelectric materials for light‐harvesting systems: Organic photovoltaics and organic photodiodes

Improving open-circuit voltage by a chlorinated polymer donor endows binary organic solar cells efficiencies over 17%

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