High Performing Inverted Flexible Perovskite Solar Cells via Solution Phase Deposition of Yttrium-Doped SnO2 Directly on Perovskite

Chapagain, Sashil; Martin, Blake; Armstrong, Peter; Perkins, Craig L.; Reese, Matthew O.; Druffel, Thad; Grapperhaus, Craig A.

doi:10.1021/acsaem.2c03720

High Performing Inverted Flexible Perovskite Solar Cells via Solution Phase Deposition of Yttrium-Doped SnO₂ Directly on Perovskite

Journal Article · Tue Apr 25 00:00:00 EDT 2023 · ACS Applied Energy Materials

DOI:https://doi.org/10.1021/acsaem.2c03720· OSTI ID:1975243

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University of Louisville, KY (United States); University of Louisville
University of Louisville, KY (United States)
National Renewable Energy Laboratory (NREL), Golden, CO (United States)

Solution processing of flexible perovskite solar cells (f-PSCs) provides an avenue for scalable, high-throughput printing of lightweight, scalable, and cost-effective flexible solar cells. However, the deposition of fully solution-processed metal oxide charge transport layers on perovskites has been limited by solvent incompatibilities and high processing temperatures for metal oxide nanoparticles. In this study, we present high-performance, inverted f-PSCs from the direct deposition of yttrium doped SnO₂ nanoparticles functionalized with acetate on top of perovskite as an ink in anhydrous ethanol via blade coating. Yttrium doping improved device performance by improving the charge extraction leading with a decreased series resistance leading to improvements in the open-circuit voltage and fill factor. Furthermore, the champion power conversion efficiency for 0.1 cm² devices increased from 14.3% for undoped SnO₂ to 18.2% with 2% Y:SnO₂ doping, which is unprecedented for f-PSCs on ITO-PET substrate employing SnO₂ as an ETL.

View Accepted Manuscript (DOE)

Research Organization:: University of Louisville, KY (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office

Grant/Contract Number:: EE0008752; AC36-08GO28308

OSTI ID:: 1975243

Alternate ID(s):: OSTI ID: 1974738

Journal Information:: ACS Applied Energy Materials, Journal Name: ACS Applied Energy Materials Journal Issue: 9 Vol. 6; ISSN 2574-0962

Publisher:: American Chemical Society (ACS)Copyright Statement

Country of Publication:: United States

Language:: English

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14 SOLAR ENERGY
Deposition
Doping
Layers
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Yttrium

High Performing Inverted Flexible Perovskite Solar Cells via Solution Phase Deposition of Yttrium-Doped SnO2 Directly on Perovskite

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High Performing Inverted Flexible Perovskite Solar Cells via Solution Phase Deposition of Yttrium-Doped SnO₂ Directly on Perovskite