An Azaacene Derivative as Promising Electron‐Transport Layer for Inverted Perovskite Solar Cells

Gu, Peiyang; Wang, Ning; Wu, Anyang; Wang, Zilong; Tian, Miaomiao; Fu, Zhisheng; Sun, Xiao Wei; Zhang, Qichun

doi:10.1002/asia.201600856

Cited by 150 publications

(69 citation statements)

References 63 publications

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“…This knowledge makes us believed that azaacenes should be an excellent replacement of PCBM as ETLs in p–i–n PCSs. Employing a new azaacene derivative (QCAPZ), whose LUMO of QCAPZ was −3.7 eV slightly higher than the conduction band of the perovskite layer, a decent efficiency (10.26%) was obtained. After recognizing the importance of sulfur–Pb interaction as well as sulfur's passivation of surface trap of perovskite layer, another new azaacene‐based derivative (HATNT) with the mobility of 1.73 × 10 −2 cm V −1 s −1 has been synthesized.…”

Section: Nonfullerene Acceptors As Etls In Inverted Pscsmentioning

confidence: 99%

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

Said

Xie

Zhang

2019

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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: Nonfullerene Acceptors As Etls In Inverted Pscsmentioning

confidence: 99%

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

Said

Xie

Zhang

2019

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“…Moreover, recent years have witnessed the broad prospects of applying organic‐inorganic hybrid perovskites (OIPs) into various fields such as solar cells, photodetectors, light‐emitting diodes, flexible memristors, and so on 71,207‐214 . OIPs own a chemical formula ABX 3 , in which A stands for an organic cation (eg, methylammonium MA + and formamidinium FA + ), while B represents a metal cation (eg, Pb 2+ and Sn 2+ ), and X is a halide counter‐ion (eg, Cl − , Br − , and I − ).…”

Section: Organic‐inorganic Hybrid Materials For Resistive Memorymentioning

confidence: 99%

Recent advances in organic‐based materials for resistive memory applications

Qian

Zhu

et al. 2020

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With the rapid development of data‐driven human interaction, advanced data‐storage technologies with lower power consumption, larger storage capacity, faster switching speed, and higher integration density have become the goals of future memory electronics. Nevertheless, the physical limitations of conventional Si‐based binary storage systems lag far behind the ultrahigh‐density requirements of post‐Moore information storage. In this regard, the pursuit of alternatives and/or supplements to the existing storage technology has come to the forefront. Recently, organic‐based resistive memory materials have emerged as promising candidates for next‐generation information storage applications, which provide new possibilities of realizing high‐performance organic electronics. Herein, the memory device structure, switching types, mechanisms, and recent advances in organic resistive memory materials are reviewed. In particular, their potential of fulfilling multilevel storage is summarized. Besides, the present challenges and future prospects confronted by organic resistive memory materials and devices are discussed.

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“…1,4,9,16‐Tetrakis((triisopropylsilyl)ethynyl)quinoxalino[2″′,3″′:4″,5″]cyclopenta[1″,2″,3″:5′,6′]acenaphtho[1′,2′:5,6]pyrazino[2,3‐b]phenazine (QCAPZ) was employed as the ETL material in inverted PSCs, and a PCE of 10.26% was obtained . 10,14‐Bis(5‐(2‐ethylhexyl)thiophen‐2‐yl)‐dipyrido[3,2‐a:2′,3′‐c][1,2,5]thiadiazolo[3,4‐]phenazine (TDTP) boosted the PCE to 18.2%, which was higher than that for PCBM‐based PSCs (17.0%); the enhancement was attributed to the stronger interaction between TDTP and the perovskite surface …”

Section: Planar Etl In Inverted (P–i–n) Pscsmentioning

confidence: 99%

Electron‐Transport Materials in Perovskite Solar Cells

et al. 2018

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Perovskite solar cells (PSCs) based on organic–inorganic hybrid materials are a rising technology offering an alternative to silicon‐based solar cells. Electron‐transport materials (ETMs) are important for PSCs and have received much attention. Here, first, the development of the structure of PSCs, from which the ETM requirements would be derived, is briefly discussed. Second, the progress of ETMs in mesoscopic PSCs, as well as regular (n–i–p) and inverted (p–i–n) planar PSCs is surveyed and analyzed, in terms of the material requirements, inorganic ETMs, organic ETMs, and interfacial materials. Third, the advancement of PSCs without ETMs is discussed. Finally, a summary and outlook on the current challenges and future development of ETMs in PSCs is given.

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An Azaacene Derivative as Promising Electron‐Transport Layer for Inverted Perovskite Solar Cells

Cited by 150 publications

References 63 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

Recent advances in organic‐based materials for resistive memory applications

Electron‐Transport Materials in Perovskite Solar Cells

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