2021
DOI: 10.1002/adfm.202110139
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Lead Leakage Preventable Fullerene‐Porphyrin Dyad for Efficient and Stable Perovskite Solar Cells

Abstract: Designing functional fullerenes with roles beyond defect passivation and electron‐transporting for perovskite solar cells (PSCs) is essential to the development of fullerenes and PSCs. Here, the authors design and synthesize a functional fullerene, FPD, composed of a C60 cage, a porphyrin ring, and three pentafluorophenyl groups. The structure features of FPD enable it can form chemical interactions with the perovskite lattices. These interactions enhance the defect passivation effect and prevent the decomposi… Show more

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Cited by 82 publications
(89 citation statements)
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“…Meanwhile, the anchoring effects of CPTA on ETLs allowed CPTA to place at the bottom region of perovskite layers, enlarging interfacial contact and thereby strengthening the chemical linkage between perovskite and inorganic ETLs. Moreover, a multifunctional fullerene additive in perovskite, FPD (Figure 4d), consisting of a C 60 cage, a porphyrin ring and three pentafluorophenyl groups was reported by Wei et al, and enabled enhanced defect passivation via the fullerene body and Pb-leakage prevention through the porphyrin tentacle, resulting in a PCE over 23% with light-soaking stability exceeding 1500 h. [66] Besides, fullerene bis-adducts, whose chemical structures are displayed in Figure 4b, can not only significantly improve the co-solubility of fullerenes with perovskite precursor, but also offer more chemical interacting sites on fullerene cages. Zhu et al incorporated ICBA into perovskite precursor solutions, which showed better solubility than the PCBM.…”
Section: Fullerene Additives For the Perovskite Active Layermentioning
confidence: 79%
See 1 more Smart Citation
“…Meanwhile, the anchoring effects of CPTA on ETLs allowed CPTA to place at the bottom region of perovskite layers, enlarging interfacial contact and thereby strengthening the chemical linkage between perovskite and inorganic ETLs. Moreover, a multifunctional fullerene additive in perovskite, FPD (Figure 4d), consisting of a C 60 cage, a porphyrin ring and three pentafluorophenyl groups was reported by Wei et al, and enabled enhanced defect passivation via the fullerene body and Pb-leakage prevention through the porphyrin tentacle, resulting in a PCE over 23% with light-soaking stability exceeding 1500 h. [66] Besides, fullerene bis-adducts, whose chemical structures are displayed in Figure 4b, can not only significantly improve the co-solubility of fullerenes with perovskite precursor, but also offer more chemical interacting sites on fullerene cages. Zhu et al incorporated ICBA into perovskite precursor solutions, which showed better solubility than the PCBM.…”
Section: Fullerene Additives For the Perovskite Active Layermentioning
confidence: 79%
“…Meanwhile, the anchoring effects of CPTA on ETLs allowed CPTA to place at the bottom region of perovskite layers, enlarging interfacial contact and thereby strengthening the chemical linkage between perovskite and inorganic ETLs. Moreover, a multifunctional fullerene additive in perovskite, FPD (Figure 4d), consisting of a C 60 cage, a porphyrin ring and three pentafluorophenyl groups was reported by Wei et al, and enabled enhanced defect passivation via the fullerene body and Pb‐leakage prevention through the porphyrin tentacle, resulting in a PCE over 23% with light‐soaking stability exceeding 1500 h. [ 66 ]…”
Section: Functionalized Fullerenes For Regular Structure Pscsmentioning
confidence: 97%
“…Recently, the issue of lead leakage has been investigated in perovskite solar cell. [109][110][111][112][113][114] For example, integrating cation-exchange resins with carbon electrodes and layering them on the glass surface of perovskite modules can reduce lead leakage by 62-fold to 14.3 ppb in water. [109] Lead-absorbing encapsulants on both sides of perovskite solar modules by using sulfonated graphene aerogels mixed with polydimethylsiloxane are able to capture over 99% Pb 2+ from the degraded devices.…”
Section: Perspectivementioning
confidence: 99%
“…Therefore, as the major ETLs in TPSCs, fullerene derivatives deserve more attention and research. Although many studies are devoted to exploring novel fullerene derivatives, such as ETLs [ 14 , 15 , 16 , 17 , 18 , 19 , 20 ], dopants [ 21 , 22 , 23 , 24 , 25 ], or modified layers [ 26 , 27 , 28 ] to enhance the performance of lead-based perovskite solar cells (LPSCs), few studies have explored the application of new fullerene materials in TPSCs.…”
Section: Introductionmentioning
confidence: 99%