The role of Mg dopant concentration in tuning the performance of the SnO<sub>2</sub> electron transport layer in perovskite solar cells

Sannino, Gennaro V.; Pecoraro, Adriana; Maddalena, Pasqualino; Bruno, Annalisa; Veneri, P. Delli; Pavone, Michele; Muñoz‐García, Ana B.

doi:10.1039/d3se00362k

Cited by 5 publications

(1 citation statement)

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“…Tin dioxide (SnO 2 ) is one of the most commonly used ETLs in PSCs, thanks to its exceptional properties that make it an excellent ETL candidate. Recent advances in deposition methods [ 16–20 ] and interface engineering strategies [ 8,16,21–25 ] have unlocked the full potential of this material, leading to PSCs achieving efficiencies exceeding 25%. As a result of its exceptional performance and its potential applications in flexible solar cells and tandem silicon perovskite devices, SnO 2 has finally outperformed titanium dioxide (TiO 2 ), which finds increasingly less usage within PSCs.…”

Section: Introductionmentioning

confidence: 99%

Optimizing SnO₂ Quantum Dot Precursor Solutions for Perovskite Solar Cells with Reduced Hysteresis

Sannino,

Gries,

Wang

et al. 2024

Solar RRL

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In recent years, SnO2 quantum dots (QDs) have been widely used for preparing the electron‐transport layer within perovskite solar cells (PSCs). However, the fabricated devices exhibit an evident hysteresis unless interlayer materials are introduced to passivate or prevent the formation of trap states at the SnO2–perovskite interface. Herein, the use of the zwitterion 3‐(1‐pyridinio)‐1‐propanesulfonate (PPS) as additive inside the SnO2 QDs solution is proposed. The results highlight that the PPS plays a multifunctional role by accelerating the synthesis of the QDs, enhancing the electron transfer and passivating defects at the SnO2–perovskite interface. The resulting PSCs with SnO2 QDs incorporating PPS exhibit a remarkable reduction in hysteresis index (HI) compared to those prepared with thiourea or without any additives. This reduction in HI suggests that PPS serves as a cost‐effective alternative additive for SnO2 QDs preparation, eliminating the need for additional interlayers or expensive additives.

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Section: Introductionmentioning

confidence: 99%

Optimizing SnO₂ Quantum Dot Precursor Solutions for Perovskite Solar Cells with Reduced Hysteresis

Sannino,

Gries,

Wang

et al. 2024

Solar RRL

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Effective prediction of SnO₂ conduction band edge potential: The key role of surface oxygen vacancies

Sannino,

Pecoraro,

Veneri

et al. 2024

J Comput Chem

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Several theoretical studies at different levels of theory have attempted to calculate the absolute position of the SnO2 conduction band, whose knowledge is key for its effective application in optoelectronic devices such us, for example, perovskite solar cells. However, the predicted band edges fall outside the experimentally measured range. In this work, we introduce a computational scheme designed to calculate the conduction band minimum values of SnO2, yielding results aligned with experiments. Our analysis points out the fundamental role of encompassing surface oxygen vacancies to properly describe the electronic profile of this material. We explore the impact of both bridge and in‐plane oxygen vacancy defects on the structural and electronic properties of SnO2, explaining from an atomistic perspective the experimental observables. The results underscore the importance of simulating both types of defects to accurately predict SnO2 features and provide new fundamental insights that can guide future studies concerning design and optimization of SnO2‐based materials and functional interfaces.

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Ni doping in CZTS solar cells: a path to enhanced photovoltaic performance

Sonawane,

Gattu,

Kutwade

et al. 2024

Indian J Phys

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The role of Mg dopant concentration in tuning the performance of the SnO₂ electron transport layer in perovskite solar cells

Abstract: Recent experiments pointed out a beneficial role of moderate Mg doping in SnO2 for application as electron transport layer (ETL) in perovskite solar cells. The high efficiencies obtained with Mg-doped...

Cited by 5 publications

References 69 publications

Optimizing SnO₂ Quantum Dot Precursor Solutions for Perovskite Solar Cells with Reduced Hysteresis

Optimizing SnO₂ Quantum Dot Precursor Solutions for Perovskite Solar Cells with Reduced Hysteresis

Effective prediction of SnO₂ conduction band edge potential: The key role of surface oxygen vacancies

Ni doping in CZTS solar cells: a path to enhanced photovoltaic performance

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The role of Mg dopant concentration in tuning the performance of the SnO2 electron transport layer in perovskite solar cells

Abstract: Recent experiments pointed out a beneficial role of moderate Mg doping in SnO2 for application as electron transport layer (ETL) in perovskite solar cells. The high efficiencies obtained with Mg-doped...

Cited by 5 publications

References 69 publications

Optimizing SnO2 Quantum Dot Precursor Solutions for Perovskite Solar Cells with Reduced Hysteresis

Optimizing SnO2 Quantum Dot Precursor Solutions for Perovskite Solar Cells with Reduced Hysteresis

Effective prediction of SnO2 conduction band edge potential: The key role of surface oxygen vacancies

Ni doping in CZTS solar cells: a path to enhanced photovoltaic performance

Contact Info

Product

Resources

About

The role of Mg dopant concentration in tuning the performance of the SnO₂ electron transport layer in perovskite solar cells

Optimizing SnO₂ Quantum Dot Precursor Solutions for Perovskite Solar Cells with Reduced Hysteresis

Optimizing SnO₂ Quantum Dot Precursor Solutions for Perovskite Solar Cells with Reduced Hysteresis

Effective prediction of SnO₂ conduction band edge potential: The key role of surface oxygen vacancies