Numerical simulation analysis of effect of energy band alignment and functional layer thickness on the performance for perovskite solar cells with Cd1-xZnxS electron transport layer

Perovskite solar cells have become a hot topic in the solar energy device area due to high efficiency and low cost photovoltaic technology. However, their function is limited by expensive hole transport material (HTM) and high temperature process electron transport material (ETM) layer is common device structure. Numerical simulation is a crucial technique in deeply understanding the operational mechanisms of solar cells and structure optimization for different devices. In this paper, device modelling for different perovskite solar cell has been performed for different ETM layer, namely: TiO2, ZnO, SnO2, PCBM (phenyl-C61-butyric acid methyl ester), CdZnS, C60, IGZO (indium gallium zinc oxide), WS2 and CdS and effect of band gap upon the power conversion efficiency of device as well as effect of absorber thickness have been examined. The SCAPS 1D (Solar Cell Capacitance Simulator) has been a tool used for numerical simulation of these devices.

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Composition and Energy Band-Modified Commercial FTO Substrate for In Situ Formed Highly Efficient Electron Transport Layer in Planar Perovskite Solar Cells

Advanced Functional Materials ◽

10.1002/adfm.201808667 ◽

2019 ◽

Vol 29 (11) ◽

pp. 1808667 ◽

Cited By ~ 12

Author(s):

Haoxuan Sun ◽

Yu Zhou ◽

Yu Xin ◽

Kaimo Deng ◽

Linxing Meng ◽

...

Keyword(s):

Solar Cells ◽

Electron Transport ◽

Energy Band ◽

Perovskite Solar Cells ◽

Transport Layer ◽

Electron Transport Layer ◽

Highly Efficient

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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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Diluted-CdS Quantum Dot-Assisted SnO2 Electron Transport Layer with Excellent Conductivity and Suitable Band Alignment for High-Performance Planar Perovskite Solar Cells

ACS Applied Materials & Interfaces ◽

10.1021/acsami.1c00896 ◽

2021 ◽

Author(s):

Zheng Lv ◽

Li He ◽

Haipeng Jiang ◽

Xiaojun Ma ◽

Fengyou Wang ◽

...

Keyword(s):

Solar Cells ◽

Electron Transport ◽

Quantum Dot ◽

High Performance ◽

Perovskite Solar Cells ◽

Band Alignment ◽

Transport Layer ◽

Electron Transport Layer ◽

Cds Quantum Dot

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La-doped BaSnO3 electron transport layer for perovskite solar cells

Journal of Materials Chemistry A ◽

10.1039/c8ta08764d ◽

2018 ◽

Vol 6 (45) ◽

pp. 23071-23077 ◽

Cited By ~ 10

Author(s):

Chang Woo Myung ◽

Geunsik Lee ◽

Kwang S. Kim

Keyword(s):

Solar Cells ◽

Electron Transport ◽

Uv Light ◽

Perovskite Solar Cells ◽

Band Alignment ◽

Transport Layer ◽

Fine Tuning ◽

Electron Transport Layer ◽

La Doped ◽

The Ideal

Recently, La-doped BaSnO3 (LBSO) electron transport layer for perovskite solar cells has been introduced to replace TiO2 which is susceptible to UV light. This paper unveils the key mechanism for the ideal band alignment between LBSO and MAPbI3. The amount of La dopant in LBSO is crucial for the fine tuning of the conduction band level of LBSO.

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