Graphene/SrTiO3nanocomposites used as an effective electron-transporting layer for high-performance perovskite solar cells

Titanium dioxide (TiO2) is usually used as an ETL in n–i–p structure PSCs. It requires high temperature preparation, which limits the commercialization of PSCs.

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Materials requirements for improving the electron transport layer/perovskite interface of perovskite solar cells determined via numerical modeling

MRS Advances ◽

10.1557/adv.2020.319 ◽

2020 ◽

Vol 5 (50) ◽

pp. 2603-2610

Author(s):

Jared D. Friedl ◽

Ramez Hosseinian Ahangharnejhad ◽

Adam B. Phillips ◽

Michael J. Heben

Keyword(s):

Numerical Modeling ◽

Solar Cells ◽

Electron Transport ◽

High Performance ◽

Perovskite Solar Cells ◽

Surface Recombination ◽

Band Alignment ◽

Transport Layer ◽

Electron Transport Layer ◽

Effective Electron

AbstractPerovskite solar cells continue to garner significant attention in the field of photovoltaics. As the optoelectronic properties of the absorbers become better understood, attention has turned to more deeply understanding the contribution of charge transport layers for efficient extraction of carriers. Titanium oxide is known to be an effective electron transport layer (ETL) in planar perovskite solar cells, but it is unlikely to result in the best device performance possible. To investigate the importance of band energy alignment between the electron transport layer and perovskite, we employ numerical modeling as a function of conduction band offset between these layers, interface recombination velocity, and ETL doping levels. Our simulations offer insight into the advantages of energy band alignment and allow us to determine a range of surface recombination velocities and ETL doping densities that will allow us to identify novel high performance ETL materials.

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A Low-Temperature, Solution-Processable Organic Electron-Transporting Layer Based on Planar Coronene for High-performance Conventional Perovskite Solar Cells

Advanced Materials ◽

10.1002/adma.201601745 ◽

2016 ◽

Vol 28 (48) ◽

pp. 10786-10793 ◽

Cited By ~ 81

Author(s):

Zonglong Zhu ◽

Jing-Qi Xu ◽

Chu-Chen Chueh ◽

Hongbin Liu ◽

Zhong'an Li ◽

...

Keyword(s):

Solar Cells ◽

Low Temperature ◽

High Performance ◽

Perovskite Solar Cells ◽

Organic Electron ◽

Electron Transporting Layer ◽

Temperature Solution ◽

Solution Processable

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Magnetron sputtered ZnO electron transporting layers for high performance perovskite solar cells

Dalton Transactions ◽

10.1039/d1dt00344e ◽

2021 ◽

Author(s):

Haihong Niu ◽

Cunlong Fang ◽

Xiantao Wei ◽

Huan Wang ◽

Lei Wan ◽

...

Keyword(s):

Electrical Conductivity ◽

Solar Cells ◽

High Performance ◽

Energy Levels ◽

Perovskite Solar Cells ◽

Processing Temperature ◽

High Electrical Conductivity ◽

Electron Transporting Layer ◽

Charge Extraction

An ideal electron transporting layer (ETL) of perovskite solar cells (PSCs) requires resonable energy levels, high electrical conductivity and excellent charge extraction. The low processing temperature makes ZnO a promising...

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