Enhancing efficiency and stability of inverted structure perovskite solar cells with fullerene C60 doped PC61BM electron transport layer

Younes, Enas M.; Gurung, Ashim; Bahrami, Behzad; El-Maghraby, E.M.; Qiao, Quinn

doi:10.1016/j.carbon.2021.05.008

Cited by 23 publications

(21 citation statements)

References 46 publications

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“…Doping of C 60 films with the introduction of small organic molecules to the surface allows for a Fermi level shifting, a local increase of the conductivity, [14] and enhances the charge extraction in thin-film solar cells. [15][16][17] However, such a strategy requires complex and expensive processes to synthesize dopants. C 60-based materials are not stable enough to mitigate ion defects from a perovskite absorber to a metal electrode.…”

Section: Introductionmentioning

confidence: 99%

Photo Stabilization of p‐i‐n Perovskite Solar Cells with Bathocuproine: MXene

Yakusheva

Saranin

Muratov

et al. 2022

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Interface engineering is one of the promising strategies for the long‐term stabilization of perovskite solar cells (PSCs), preventing chemical decomposition induced by external agents and promoting fast charge transfer. Recently, MXenes–2D structured transition metal carbides and nitrides with various functionalization (O, ‐F, ‐OH) have demonstrated high potential for mastering the work function in halide perovskite absorbers and have significantly improved the n‐type charge collection in solar cells. This work demonstrates that MXenes allow for efficient stabilization of PSCs besides improving their performances. A mixed composite bathocuproine:MXene, that is, (BCP:MXene) interlayer, is introduced at the interface between an electron‐transport layer (ETL) and a metal cathode in the p‐i‐n device structure. The investigation demonstrates that the use of BCP:MXene interlayer slightly increases the power conversation efficiency (PCE) for PSCs (from 16.5 for reference to 17.5%) but dramatically improves the out of Glove‐Box stability. Under ISOS‐L‐2 light soaking stress at 63 ± 1.5 °C, the T80 (time needed to reduce efficiency down to 80% of the initial one) period increases from 460 to > 2300 hours (h).

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Section: Introductionmentioning

confidence: 99%

Photo Stabilization of p‐i‐n Perovskite Solar Cells with Bathocuproine: MXene

Yakusheva

Saranin

Muratov

et al. 2022

Small

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“…[81] Doping with fullerene in the PCBM layer facilitates the charge transport and reduces the recombination by the effect on the morphology of the layer and increasing the electrical conductivity. [79] When polystyrene (PS) is added to the PC 61 BM solution, a soft and homogenous ETL is formed, V OC is improved, PCE is increased about 10% and so improvement in total device performance was achieved. [75] Younes et al [79] doped PCBM with C 60 in inverted PSC and compared it with undoped one.…”

Section: Fullerene As Etlmentioning

confidence: 99%

“…[79] When polystyrene (PS) is added to the PC 61 BM solution, a soft and homogenous ETL is formed, V OC is improved, PCE is increased about 10% and so improvement in total device performance was achieved. [75] Younes et al [79] doped PCBM with C 60 in inverted PSC and compared it with undoped one. By using atomic force microscope (AFM), the image of the surface morphology for the doped and undoped cells showed improved roughness and morphology of the layer surface compared with the doping percentage (Figure 8b-d,f).…”

Section: Fullerene As Etlmentioning

confidence: 99%

“…Thus, increase V OC , FF, and current density by increasing the electrical conductivity of the ETL and so encourages the photogenerated separation (Figure 8f). [79] A new class of C 60 derivatives with modified structures is synthesized and used as the ETLs in PSCs: diphenyl-C 61 (DPC) with two phenyl groups, (dimethylamino)phenyl]-C 61 (DMAPC), (diethylamino)phenyl]-C 61 (DEAPC) with amino group, [6,6]-Phenyl-C 61 -propylbenzene (PCPB) with lengthening alkyl chains, [6,6]-4-Fluorophenyl-C 61 -buryric acid methyl ester (FPCBM), and [6,6]-2,3,4,5-tetrafluorophenyl-C 61 -acetic acid ethyl ester (F4PCEE). [82] All of these fullerenebased ETLs have matched the energy levels with perovskite layers' CB, allowing interfacial electron transport.…”

Section: Wwwadvmatinterfacesdementioning

confidence: 99%

“…AFM images of perovskite/PC61BM:C 60 of different volume ratios of PC61BM:C 60 of b) 1:0, c) 1:0.05, d) 1:0.07, and e) 1:0.1. f) Free charge generation process ratio in the case of PCBM versus PCBM with C 60 . b-f) Reproduced with permission [79]. Copyright 2021, Elsevier.…”

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Fullerene‐Based Inverted Perovskite Solar Cell: A Key to Achieve Promising, Stable, and Efficient Photovoltaics

Zahran

Hawash

2022

Adv Materials Inter

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Fullerene is one of the most critical materials that are widely used to improve and examine the inverted perovskite solar cells (PSCs, p‐i‐n structure). Fullerenes are known to improve the stability, lower the hysteresis, and increase the power conversion efficiency of the PSCs. Fullerene and its derivatives are often used in constructing effective PSCs. Several properties and performance of fullerenes are the key bases for testing and making effective alternatives that can improve the performance of PSCs. This review summarizes some of the most important fullerenes (i.e., fullerene and its derivatives) that are employed in inverted (p‐i‐n) PSCs and their physical properties that can overcome the well‐known shortcomings in perovskite materials. The current density–voltage hysteresis in PSC and the fullerenes role in lowering the hysteresis are discussed. Moreover, fullerenes are also reviewed as electron transport layer, cathode buffer layer, and additives for perovskites. Enhanced stability by using fullerene derivatives is illustrated. Additionally, fullerenes in flexible and tandem PSCs as well as advantages and disadvantages of fullerenes are briefly discussed. Finally, an overview of the fullerene future in PSCs is discussed with alternative nonfullerene materials used in PSC.

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Recent Advances in Functionalized Fullerenes in Perovskite Solar Cells^†

Chen

Yang

2023

Chin. J. Chem.

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Comprehensive SummaryEfficient charge transport and defect passivation are essential for high efficiency of organic–inorganic hybrid perovskite solar cells (PSCs). Functionalized fullerenes featuring high electron affinity and mobility as well as small reorganization energy have been extensively applied in PSCs toward facilitated electron transport and passivated trap states, leading to improvements of both device efficiency and stability. Herein, we summarize the recent advances, especially in the last three years, in applications of functionalized fullerenes including fullerene derivatives and endohedral metallofullerenes in PSCs. Their functions in trap state passivation, electron transport promotion, crystalline modulation, water/oxygen erosion inhibition, and so on, are discussed in details. In particular, we emphasize novel functions of fullerenes beyond trap state passivation, as well as the synergy of multifunction of fullerenes in improving PSC device performance and stability. Finally, we present an outlook on designing novel multifunctionalized fullerenes toward highly efficient and stable PSC devices.

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Enhancing efficiency and stability of inverted structure perovskite solar cells with fullerene C60 doped PC61BM electron transport layer

Cited by 23 publications

References 46 publications

Photo Stabilization of p‐i‐n Perovskite Solar Cells with Bathocuproine: MXene

Photo Stabilization of p‐i‐n Perovskite Solar Cells with Bathocuproine: MXene

Fullerene‐Based Inverted Perovskite Solar Cell: A Key to Achieve Promising, Stable, and Efficient Photovoltaics

Recent Advances in Functionalized Fullerenes in Perovskite Solar Cells^†

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Enhancing efficiency and stability of inverted structure perovskite solar cells with fullerene C60 doped PC61BM electron transport layer

Cited by 23 publications

References 46 publications

Photo Stabilization of p‐i‐n Perovskite Solar Cells with Bathocuproine: MXene

Photo Stabilization of p‐i‐n Perovskite Solar Cells with Bathocuproine: MXene

Fullerene‐Based Inverted Perovskite Solar Cell: A Key to Achieve Promising, Stable, and Efficient Photovoltaics

Recent Advances in Functionalized Fullerenes in Perovskite Solar Cells†

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Recent Advances in Functionalized Fullerenes in Perovskite Solar Cells^†