2022
DOI: 10.1002/aenm.202200877
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Homogeneously Miscible Fullerene inducing Vertical Gradient in Perovskite Thin‐Film toward Highly Efficient Solar Cells

Abstract: Fullerene-based n-type charge-collecting materials have emerged as a solution for high-performance perovskite solar cells. However, their application to perovskite solar cells is limited in the device architecture and only a small amount of fullerene additives have been introduced to the device system, because of the immiscibility of the fullerene species with polar solvents. To overcome this, triethylene glycol monomethyl ether chain-attached fullerene derivatives are synthesized and applied to normal-type pe… Show more

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Cited by 35 publications
(25 citation statements)
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References 75 publications
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“…Such configurations lead to excellent physical properties, such as high mechanical and chemical stability as well as a high DC-to-optical carrier mobility. While 0D fullerene has played vital roles in various types of photovoltaics as effective charge transporters, [1][2][3][4] graphene and CNTs are regarded as prominent materials that can replace conventional materials with auxiliary functionalities or be used as additives to enhance the performance of optoelectronic devices. [5][6][7] Graphene is a single-layer sheet with a honeycomb structure connected by sp 2 -hybridised carbon.…”
Section: Introductionmentioning
confidence: 99%
“…Such configurations lead to excellent physical properties, such as high mechanical and chemical stability as well as a high DC-to-optical carrier mobility. While 0D fullerene has played vital roles in various types of photovoltaics as effective charge transporters, [1][2][3][4] graphene and CNTs are regarded as prominent materials that can replace conventional materials with auxiliary functionalities or be used as additives to enhance the performance of optoelectronic devices. [5][6][7] Graphene is a single-layer sheet with a honeycomb structure connected by sp 2 -hybridised carbon.…”
Section: Introductionmentioning
confidence: 99%
“…3b describes the Tauc plots for all samples prepared with and without CdCl 2 additives. The value of E g can be evaluated by extrapolating the variation between photo energy (hn) and (ahn) 2 . 45 The values of E g were found to be 1.59 eV, which is similar to the values reported in the literature.…”
Section: Resultsmentioning
confidence: 99%
“…Due to their exceptional photoelectric performance and easy fabrication processes, hybrid perovskite solar cells (HPSCs) have attracted considerable attention as a promising candidate for new-generation photovoltaic (PV) devices. [1][2][3] This could be related to the high absorption coefficient, high charge transfer phenomenon, and adjustable bandgap along with high charge diffusion length, which are all important requirements. [4][5][6] The efficiency of HPSCs has substantially increased from a low of 3.8% (in 2009) 7 to a veried 25.2% (in 2021), 8 which has encouraged researchers in the HPSC's future development.…”
Section: Introductionmentioning
confidence: 99%
“…7,8 Grain boundaries (GBs), pinholes, and impurities present in bulk or at interfacial sites, in particular, can accelerate ion migration and operate as photocarrier recombination centers, resulting in energy loss and device deterioration. 9–11…”
Section: Introductionmentioning
confidence: 99%
“…7,8 Grain boundaries (GBs), pinholes, and impurities present in bulk or at interfacial sites, in particular, can accelerate ion migration and operate as photocarrier recombination centers, resulting in energy loss and device deterioration. [9][10][11] Researchers have looked at the problem of moisture sensitivity in 3D perovskites in a number of different ways. A HTL/ perovskite interface modifier could effectively mitigate the mechanical or chemical deterioration of the interface.…”
Section: Introductionmentioning
confidence: 99%