A perylene diimide dimer-based electron transporting material with an A–D–A structure for efficient inverted perovskite solar cells

Fan, Yunhao; Wu, Fei; Liu, Fan; Han, Mengmeng; Chang, Kai; Zhu, Linna; Li, Qianqian; Li, Zhen

doi:10.1039/d1tc04176b

Cited by 17 publications

(15 citation statements)

References 64 publications

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“…Fullerenes are known to have a high EA (i.e., LUMO) and well aligned with perovskites' CB. [32,49,101] Also, fullerenes have relatively high electron mobility that is sufficient enough when implemented as thin layer in PSCs to achieve high PCE. [32,101,102] Additionally, it has a small reorganization energy and a strong electron-accepting ability that facilitates electron extraction and transfer.…”

Section: Summary Of Most Important Advantages and Disadvantages Of Fu...mentioning

confidence: 99%

“…[32,49,101] Also, fullerenes have relatively high electron mobility that is sufficient enough when implemented as thin layer in PSCs to achieve high PCE. [32,101,102] Additionally, it has a small reorganization energy and a strong electron-accepting ability that facilitates electron extraction and transfer. [32,103] It is worthy to mention here that C 60 cage plays a major role in accelerating the electron extraction and transport.…”

Section: Summary Of Most Important Advantages and Disadvantages Of Fu...mentioning

confidence: 99%

“…Due to interlayer penetration of this graphene with decreasing contact resistance, it shows a PCE better than PCBM-based PSCs. [101,107] Azaacene-based ETMs are another nonfullerene small molecules used as ETL. [108] These are another alternative material of fullerene.…”

Section: Nonfullerene Etmsmentioning

confidence: 99%

“…[ 32 ] Fullerene derivatives can easily be tuned to have better solution processability, such as PCBM compared to C 60 . [ 101 ] Additionally, PCBM is known for suppression of ions’ migration and passivation of iodine defects in perovskites, which lead to a reduction of the built‐in field and the interfacial barriers. [ 58 ] The side chains attached to the C 60 cage also can further help in improving the stability of the PSCs by improving the quality of the perovskites as well as reducing the oxidation of the perovskites.…”

Section: Summary Of Most Important Advantages and Disadvantages Of Fu...mentioning

confidence: 99%

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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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Section: Summary Of Most Important Advantages and Disadvantages Of Fu...mentioning

confidence: 99%

Section: Summary Of Most Important Advantages and Disadvantages Of Fu...mentioning

confidence: 99%

Section: Nonfullerene Etmsmentioning

confidence: 99%

Section: Summary Of Most Important Advantages and Disadvantages Of Fu...mentioning

confidence: 99%

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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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“…[14][15][16] Perylene derivatives have the advantage of tunability of their optoelectronic properties through simple structural modications, alongside easy and low-cost synthesis and purication with high yields and reproducibility, making them suitable substitutes for expensive and unstable fullerenes. 17,18 Previous studies have shown the potential of PDIs as ETMs through the use of different functional groups attached to alkyl chains in the imide position, [19][20][21][22] Click or tap here to enter text.as dimers or assembles of higher dimensionality [23][24][25][26][27] or as buffer layer or additive either through solution 28,29 or evaporation techniques. 30 In this study, three highly soluble perylene diimide electron acceptor molecules (Fig.…”

Section: Introductionmentioning

confidence: 99%

Solution-processable perylene diimide-based electron transport materials as non-fullerene alternatives for inverted perovskite solar cells

et al. 2022

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Over 18.2%‐Efficiency Organic Solar Cells with Exceptional Device Stability Enabled by Bay‐Area Benzamide‐Functionalized Perylene Diimide Interlayer

Huyen

Jeong

Kim

et al. 2023

Adv Funct Materials

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A simultaneous further increase in the power conversion efficiency (PCE) and device stability of organic solar cells (OSCs) over the current levels needs to be overcome for their commercial viability. Herein, a bay‐area benzamide‐functionalized perylene diimide‐based electron transport layer, namely H75 is developed, to obtain the aforementioned characteristics. The advantages of H75‐employed OSCs include a notable PCE up to 18.26% and outstanding device stabilities under conditions of varying severity (>95% PCE retention after 1500 h upon long‐term aging and exceptional T80 lifetimes (the time required to reach 80% of initial performance) of over 1000 h in light‐soaking, 500 h in thermal stress at 85 °C, 72 h in 85% high relative humidity, and 100 h in atmospheric‐air conditions without encapsulation in conventional architecture). The excellent performance of H75‐employed OSC can be attributed to its various beneficial features derived from the bay‐area benzamide functionalities (e.g., excellent film‐forming ability, suitable energy level, reduced aggregation, and intrinsic high structural stability). The findings of this work provide further insights into the molecular design of electron transport layers for realizing more efficient and stable OSCs.

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A perylene diimide dimer-based electron transporting material with an A–D–A structure for efficient inverted perovskite solar cells

Abstract: Through the introduction of two Perylene Diimide(PDI) moieties to triphenylamine (TPA) as the twisted core, a PDI dimer-based electron transporting material (ETM) has been synthesized with (electron acceptor)A-D(electron donor)-A structure....

Cited by 17 publications

References 64 publications

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

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

Solution-processable perylene diimide-based electron transport materials as non-fullerene alternatives for inverted perovskite solar cells

Over 18.2%‐Efficiency Organic Solar Cells with Exceptional Device Stability Enabled by Bay‐Area Benzamide‐Functionalized Perylene Diimide Interlayer

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