Two cyclohexanofullerenes used as electron transport materials in perovskite solar cells

Dai, Shuhui; Deng, Lin‐Long; Zhang, Meilin; Chen, Weiyi; Pei, Zhu; Wang, Xin; Liu, Cong; Tan, Zhan’ao; Xie, Su‐Yuan; Huang, Rong‐Bin; Zheng, Lan‐Sun

doi:10.1016/j.ica.2017.05.056

Cited by 11 publications

(5 citation statements)

References 49 publications

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“…The reason might come from the roughness of the surface of each material. AFM measurements confirmed that the roughness of BDNC layer was larger than that of EDNC layer, leading to the improper contact between the ETL and electrode, and then the reduced efficiency …”

Section: Fullerene and Fullerene Derivatives (C60 C70 And Pcbm) As mentioning

confidence: 86%

Recent Progress in Organic Electron Transport Materials in Inverted Perovskite Solar Cells

Said

Xie

Zhang

2019

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224

172

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Organic n‐type materials (e.g., fullerene derivatives, naphthalene diimides (NDIs), perylene diimides (PDIs), azaacene‐based molecules, and n‐type conjugated polymers) are demonstrated as promising electron transport layers (ETLs) in inverted perovskite solar cells (p–i–n PSCs), because these materials have several advantages such as easy synthesis and purification, tunable frontier molecular orbitals, decent electron mobility, low cost, good solubility in different organic solvents, and reasonable chemical/thermal stability. Considering these positive factors, approaches toward achieving effective p–i–n PSCs with these organic materials as ETLs are highlighted in this Review. Moreover, organic structures, electron transport properties, working function of electrodes caused by ETLs, and key relevant parameters (PCE and stability) of p–i–n PSCs are presented. Hopefully, this Review will provide fundamental guidance for future development of new organic n‐type materials as ETLs for more efficient p–i–n PSCs.

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Section: Fullerene and Fullerene Derivatives (C60 C70 And Pcbm) As mentioning

confidence: 86%

Recent Progress in Organic Electron Transport Materials in Inverted Perovskite Solar Cells

Said

Xie

Zhang

2019

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224

172

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“…Xie and co-workers further investigated the effects of charge-transporting, and film-forming properties of fullerene-based ETLs on the resulting photovoltaic performance. [64] Three C60 derivatives, EDNC, BDNC, and PC61BM (Figure 3) were introduced into p-i-n PSCs as ETLs. Because of better surface morphology, the EDNCbased device exhibited higher PCE (12.64%) than that of BDNC-based device (7.36%) despite of their similar LUMO energy level, electron mobility, and optical properties.…”

Section: Fullerene Electron Transport Layer For the P-i-n Structurementioning

confidence: 99%

Fullerene‐Based Materials for Photovoltaic Applications: Toward Efficient, Hysteresis‐Free, and Stable Perovskite Solar Cells

Deng

Xie

Gao

2017

Adv Elect Materials

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106

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Perovskite solar cells are promising candidates for next-generation photovoltaics.Fullerenes and their derivatives can act as efficient electron transport layers, interfacial modification layers and/or trap state passivators in perovskite solar cells, which play an important role in increasing efficiency, reducing current hysteresis, and enhancing device stability. Herein, recent progresses of fullerenes and their derivatives used in perovskite solar cells are reviewed, with a particular emphasis on fullerene chemical structures that affect performance of the devices. Potential candidates of fullerenes that could further improve device performance and stability are also discussed.

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“…[ 77 ] Besides, Xie et al synthesized two fullerenes, 2‐(3‐ethoxycarbonylpropyloxy)‐(5, 8)‐dihydronaphthyl‐(6, 7)‐[6,6]‐C 60 (EDNC) and 2‐benzyloxy‐(5, 8)‐dihydronaphthyl‐(6, 7)‐[6,6]‐C 60 (BDNC) by substituting indene with a five‐membered ring to naphthalene with six‐membered ring (Figure 5m). [ 78 ] Thanks to the better solubility, the EDNC enabled a higher photovoltaic performance of PSCs showed higher photovoltaic performance, with larger short‐circuit current density ( J sc ) and FF, than the BDNC‐based PSCs. Similarly, Yang et al investigated another naphthalene‐adducted fullerene with hydrophobic and electron‐donating oxygen alkyl chains, C5‐NCMA, which simultaneously exhibited a high PCE of 17.6% as well as enhanced moisture stability.…”

Section: Functionalized Fullerenes For the Inverted Structure Pscsmentioning

confidence: 99%

Targeted Molecular Design of Functionalized Fullerenes for High‐Performance and Stable Perovskite Solar Cells

Zhou

Yang

2022

Small Structures

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Perovskite solar cell (PSC) is a potential next-generation photovoltaic technology alternative to the conventional competitors including polycrystalline silicon, cadmium telluride, and copper indium gallium diselenide solar cells. Particularly, functionalized fullerenes play crucial roles as charge transport layers, interfacial layers, and additives in perovskite photovoltaics, dramatically contributing to the promotion of power conversion efficiency (PCE) and stability. As the field advances rapidly, the importance to rationally design fullerenes against a particular category of those functions has been increasingly recognized. Herein, recent progress in the application of functionalized fullerenes toward highperformance and stable perovskite solar cells is reviewed, placing special emphasis on the importance of the targeted molecular design of fullerene structures for different application scenarios to meet diverse functional requirements in specific device structures.

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Two cyclohexanofullerenes used as electron transport materials in perovskite solar cells

Cited by 11 publications

References 49 publications

Recent Progress in Organic Electron Transport Materials in Inverted Perovskite Solar Cells

Recent Progress in Organic Electron Transport Materials in Inverted Perovskite Solar Cells

Fullerene‐Based Materials for Photovoltaic Applications: Toward Efficient, Hysteresis‐Free, and Stable Perovskite Solar Cells

Targeted Molecular Design of Functionalized Fullerenes for High‐Performance and Stable Perovskite Solar Cells

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