A perylene bisimide derivative with a LUMO level of −4.56 eV for non-fullerene solar cells

Yu, Yikai; Yang, Fan; Ji, Yunjing; Wu, Yonggang; Zhang, Andong; Li, Cheng; Li, Weiwei

doi:10.1039/c6tc01045h

Cited by 24 publications

(19 citation statements)

References 29 publications

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“…Their outstanding electron-accepting properties in BHJs and PHJs (in combination with polymeric and smallmolecule donors alike) have led to their widespread use in all types of narrowband photodetector configurations [19,30,31,[80][81][82][83][84][85]. However, their broad absorption tail through the visible has been problematic in some configurations (see section 6.3), and this has recently prompted the development of alternative small-molecule acceptors with narrowband absorption [11,[57][58][59][60][61] or with diverse onsets [42,[86][87][88].…”

Section: Organic Semiconductorsmentioning

confidence: 99%

Efficiency and spectral performance of narrowband organic and perovskite photodetectors: a cross-sectional review

Pecunia

2019

J. Phys. Mater.

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The capability of detecting visible and near infrared light within a narrow wavelength range is in high demand for numerous emerging application areas, including wearable electronics, the Internet of Things, computer vision, artificial vision and biosensing. Organic and perovskite semiconductors possess a set of properties that make them particularly suitable for narrowband photodetection. This has led to rising interest in their use towards such functionality, and has driven remarkable progress in recent years. Through a comparative analysis across an extensive body of literature, this review provides an up-to-date assessment of this rapidly growing research area. The transversal approach adopted here focuses on the identification of: (a) the unifying aspects underlying organic and perovskite narrowband photodetection in the visible and in the near infrared range; and (b) the trends relevant to photoconversion efficiency and spectral width in relation to material, device and processing strategies. A cross-sectional view of organic and perovskite narrowband photodetection is thus delineated, giving fresh insight into the status and prospects of this research area.

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Section: Organic Semiconductorsmentioning

confidence: 99%

Efficiency and spectral performance of narrowband organic and perovskite photodetectors: a cross-sectional review

Pecunia

2019

J. Phys. Mater.

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“…In short, the different donors could be used to well tune the acceptor interactions and the crystallization process, which might affect the film morphology, the charge generation and transportation. Li and co‐workers reported another new nonfullerene small molecule acceptor T8, in which there was a strong electron‐withdrawing unit of cyano‐group at the bay position of each PDI monomer. So it was understandable for T8 to obtain the lowest LUMO energy level about −4.56 eV.…”

Section: Nonfullerene Small Molecule Acceptorsmentioning

confidence: 99%

Recent Advances in Nonfullerene Acceptors for Organic Solar Cells

Liu

Hou

et al. 2017

Macromol. Rapid Commun.

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Recently, research on nonfullerene acceptors in organic solar cells has gradually become a hot topic due to such superior characteristics of light absorption and energy-level-convenient manipulation, multiformity of the photoactive material structures, as well as the extensive area in production compared to the fullerene derivatives. However, the nonfullerene acceptors evolved slowly before 2012 and, as a matter of fact, the power conversion efficiency values could only bear 2.0%. Strikingly, nonfullerene acceptors have developed at a fast pace since 2013, with the best device performance of 13.1% now. In this review, recent research progress on nonfullerene acceptors, including small molecules and polymers, are sorted and summarized on the basis of the different characteristics.

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“…Furthermore, metal–metal cavity photodetectors based on the P3HT:PCBM system as well as on the poly[3‐(5‐(4‐(2‐ethylhexyl)‐4H‐dithieno[3,2‐b:2′,3′‐d]pyrrol‐2‐yl)thiophen‐2‐yl)‐2,5‐bis(2‐hexyldecyl)‐6‐(thiophen‐2‐yl)‐2,5‐dihydropyrrolo[3,4‐c]pyrrole‐1,4‐dione]:1,1′,3,3′,8,8′,10,10′‐octaoxo‐2,2′,9,9′‐tetra(undecan‐6‐yl)‐1,1′,2,2′,3,3′,8,8′,9,9′,10,10′‐dodecahydro‐[5,5′‐bianthra[2,1,9‐def:6,5,10‐d′e′f′]diisoquinoline]‐13,13′‐dicarbonitrile (PDPPTDTPT:SdiCNPBI) blend are fabricated. For the latter, with a low E CT (≈ 0.7 eV), detection wavelengths are easily extended to a remarkable range of 1000–1700 nm (details in Sections SI‐3 and SI‐4, Supporting Information), which is among the longest detection wavelengths reported for organic photodetectors .…”

mentioning

confidence: 99%

Polymer:Fullerene Bimolecular Crystals for Near‐Infrared Spectroscopic Photodetectors

et al. 2017

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Spectroscopic photodetection is a powerful tool in disciplines such as medical diagnosis, industrial process monitoring, or agriculture. However, its application in novel fields, including wearable and bio-integrated electronics is hampered by the use of bulky dispersive optics. Here, we employ solution-processed organic donor-acceptor blends in a resonant optical cavity device architecture for wavelength-tunable photodetection. While conventional photodetectors respond to above-gap excitation, the cavity device exploits weak subgap absorption of intermolecular charge-transfer states of the intercalating Poly[2,5-bis(3-tetradecylthiophen-2-yl)thieno[3,2-b]thiophene] (PBTTT):[6,6]-Phenyl-C61-butyric acid methyl ester (PCBM) bimolecular crystal. This enables a highly wavelength selective, nearinfrared photoresponse with a spectral resolution down to 14 nm, as well as dark currents and detectivities comparable with commercial inorganic photodetectors. A miniaturized spectrophotometer, comprising an array of narrowband photo-detectors is fabricated using blade-coated PBTTT:PCBM thin films with a thickness gradient. As application example, we demonstrate water transmittance spectral measured by this device.

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A perylene bisimide derivative with a LUMO level of −4.56 eV for non-fullerene solar cells

Abstract: Conjugated polymers with LUMO levels of −4.00 eV combined with a newly designed perylene bisimide compound with a LUMO level of −4.56 eV were found to have efficient charge transfer and provide power conversion efficiencies up to 1.4% in solar cells.

Cited by 24 publications

References 29 publications

Efficiency and spectral performance of narrowband organic and perovskite photodetectors: a cross-sectional review

Efficiency and spectral performance of narrowband organic and perovskite photodetectors: a cross-sectional review

Recent Advances in Nonfullerene Acceptors for Organic Solar Cells

Polymer:Fullerene Bimolecular Crystals for Near‐Infrared Spectroscopic Photodetectors

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