Efficient and stable planar perovskite solar cells using co-doped tin oxide as the electron transport layer

Sakthivel, P.; Foo, Shini; Thambidurai, M.; Harikesh, Padinhare Cholakkal; Mathews, Nripan; Yuvakkumar, R.; Ravi, G.; Dang, Cuong

doi:10.1016/j.jpowsour.2020.228443

Cited by 17 publications

(15 citation statements)

References 38 publications

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“…In the absence of EDTA, the pristine device attained low PCE of 16.42% while the EDTA doped SnO 2 ETL device attained superior efficiency of 21.06%. Last but not least, the surface of ETLs can be enhanced through the use of a thin interlayer between the ETL/perovskite interface 7‐9,14,27 . Zhu et al utilized graphene quantum dots (GQDs) as an electron bridge, facilitating electron injection between the MAPbI 3 and TiO 2 ETL 49 .…”

Section: Charge Transport and Recombinationmentioning

confidence: 99%

“…In DSSC, a thick mesoporous ETL is required to facilitate high dye loading with typical thickness of 10 μm. [7][8][9][10][11][12] On the contrary, an approximate thickness of 200 nm is sufficient to generate similar photocurrent in the OIHP solar cell. [7][8][9] As a matter of fact, the mesoporous structure is optional in an OIHP solar cell although the large surface area provided aids in electron extraction.…”

Section: Various Device Architecturesmentioning

confidence: 99%

“…To achieve high performance of PSCs, ETLs should fulfil a list of criteria. [7][8][9]14 First, the lowest unoccupied molecular orbital (LUMO) of the conduction band in the ETL should be comparable or slightly lower compared to the adjacent OIHP layer. Preferably, the ETL should possess LUMO level in-between that of the OIHP perovskite layer and the electron collecting electrode, ensuring smooth electron transference.…”

Section: The Roles Of Etlmentioning

confidence: 99%

“…Last but not least, the surface of ETLs can be enhanced through the use of a thin interlayer between the ETL/perovskite interface. [7][8][9]14,27 Zhu et al utilized graphene quantum dots (GQDs) as an electron bridge, facilitating electron injection between the MAPbI 3 and TiO 2 ETL. 49 Therefore, the ETL is pivotal to the efficiency of electron transportation and recombination resistance of the OIHP solar cell.…”

Section: Charge Transport and Recombinationmentioning

confidence: 99%

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Recent review on electron transport layers in perovskite solar cells

Foo

Thambidurai

Kumar

et al. 2022

Intl J of Energy Research

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Summary Organic‐inorganic perovskite solar cells demonstrate immense potential for future photovoltaic application due to their remarkable efficiency advancements competitively low‐cost. To unlock the full capability of perovskite, developments to the neighbouring layers play immense roles in the ultimate performance of a perovskite solar device. Here, a brief review comprising of the advancements and roles of electron transport layers (ETLs) is discussed. In addition, the effects of ETL on the charge transport, hysteresis, and stability of perovskite solar devices, along with high−performing examples, are also explored.

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Section: Charge Transport and Recombinationmentioning

confidence: 99%

Section: Various Device Architecturesmentioning

confidence: 99%

Section: The Roles Of Etlmentioning

confidence: 99%

Section: Charge Transport and Recombinationmentioning

confidence: 99%

See 2 more Smart Citations

Recent review on electron transport layers in perovskite solar cells

Foo

Thambidurai

Kumar

et al. 2022

Intl J of Energy Research

Self Cite

View full text Add to dashboard Cite

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“…Organic–inorganic halide perovskite solar cells (PSCs) have been considered the pioneers of photovoltaic research owing to their high optical absorption, tunable bandgap, high carrier mobility, and excellent photovoltaic performance. − The power conversion efficiency (PCE) of PSCs has risen from 3.8% to 25.7% after a few years − due to the development of so-called advantageous characteristics.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Performance of Planar Perovskite Solar Cells Using Thioacetamide-Treated SnS₂ Electron Transporting Layer Based on Molecular Ink

2022

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Improving the electro-optical properties of the electron transport layers (ETLs) is considered one of the most promising solutions to increase the efficiency of the perovskite solar cells (PSCs). In this study, we focused on the spin-coated tin(IV) sulfide (SnS2) as the ETL with two different sulfur sources, thiourea (TU) and thioacetamide (TAA) (SnS2(TU) and SnS2(TAA)), and investigated the effects of surface passivation of the prepared ETL with TU and TAA (SnS2-TU and SnS2-TAA). The treatment is shown to be useful in reducing the surface roughness of the SnS2 ETL and to passivate the interfacial trap states at the ETL/perovskite interface, leading to better contact between them. Among the prepared samples, the SnS2(TU) led to a smoother ETL rather than SnS2(TAA). Finally, the best results of the produced PSCs were related to the samples with SnS2(TU) and passivated with TAA (SnS2(TU)-TAA) in which the power conversion efficiency (PCE) promoted from 11.98% in the case of SnS2(TU) ETL to 15.14% in SnS2(TU)-TAA ETL with a 37% increase in power conversion efficiency (PCE). As an important role, TAA treatment could compensate the sulfur vacancy which was proved by XPS tests. Moreover, the SnS2(TU)-TAA ETL increased the long-term stability of the device without any encapsulation under ambient conditions, retaining 86% of the initial PCE after 30 days, while the device with the SnS2(TU) ETL could maintain about 64% of the original PCE.

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Low‐Temperature Processing Methods for Tin Oxide as Electron Transporting Layer in Scalable Perovskite Solar Cells

et al. 2023

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Perovskite solar cell (PSC) technology experiences a remarkably rapid growth toward commercialization with certified efficiency of over 25%, along with the outstanding breakthrough in the development of SnO2. Owing to the wide bandgap, high electron mobility, chemical stability, and low photocatalytic activity, SnO2 has been the rising star to serve as electron transporting layer (ETL). More importantly, the low‐temperature fabrication process (<200 °C) enables SnO2 a promising candidate for the industry, making it compatible with the plastic substrates and large‐scale production, which is crucial for the flexible and scalable devices fabrication. In this review, the processing methods (solution‐based, vacuum‐based, and vapor‐based deposition) of low‐temperature SnO2 (LT‐SnO2) and the pros and cons of them with a focus on their scalability are discussed. Additionally, the morphologies of obtained LT‐SnO2 are investigated to guide the design and performance improvement of devices. The modification strategies to reduce undesired nonradiative recombination and passivate the defects in the bulk or at the interface of LT‐SnO2, influencing the quality of perovskite films, together with the efficiency and stability of cells are summarized. This review is a comprehensive overview of the studies on low‐temperature SnO2 ETL and provides detailed instructions for scalable PSCs.

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Efficient and stable planar perovskite solar cells using co-doped tin oxide as the electron transport layer

Cited by 17 publications

References 38 publications

Recent review on electron transport layers in perovskite solar cells

Recent review on electron transport layers in perovskite solar cells

Enhanced Performance of Planar Perovskite Solar Cells Using Thioacetamide-Treated SnS₂ Electron Transporting Layer Based on Molecular Ink

Low‐Temperature Processing Methods for Tin Oxide as Electron Transporting Layer in Scalable Perovskite Solar Cells

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Efficient and stable planar perovskite solar cells using co-doped tin oxide as the electron transport layer

Cited by 17 publications

References 38 publications

Recent review on electron transport layers in perovskite solar cells

Recent review on electron transport layers in perovskite solar cells

Enhanced Performance of Planar Perovskite Solar Cells Using Thioacetamide-Treated SnS2 Electron Transporting Layer Based on Molecular Ink

Low‐Temperature Processing Methods for Tin Oxide as Electron Transporting Layer in Scalable Perovskite Solar Cells

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Enhanced Performance of Planar Perovskite Solar Cells Using Thioacetamide-Treated SnS₂ Electron Transporting Layer Based on Molecular Ink