Iron oxide-based charge transport layers for efficient and stable perovskite solar cells

Iron oxide-based charge transport layers for efficient and stable perovskite solar cells

Perovskite solar cells (PSCs) represent the future generation of photovoltaic technology, offering power conversion efficiencies (PCEs) comparable to the best silicon solar cells. This research primarily investigates the effect of charge transport layers (CTLs) on the performance and stability of PS...

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Bibliographic Details
Main Authors: Hafiz Muhammad Noman, Iqbal Nisa, Muhammad Meesum Bilal, Muhammad Anwar Jan, Abu Summama Sadavi Bilal, Ijaz Hussain, Nargis Bano, Akbar Ali Qureshi, Muhammad Adnan
Format: Article
Language:English
Published: IOP Publishing 2024-01-01
Series:Materials Research Express
Subjects:
pervoskite solar cells
electron transport properties
thinfilms
iron oxide
Online Access:https://doi.org/10.1088/2053-1591/ad9cef
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Summary:Perovskite solar cells (PSCs) represent the future generation of photovoltaic technology, offering power conversion efficiencies (PCEs) comparable to the best silicon solar cells. This research primarily investigates the effect of charge transport layers (CTLs) on the performance and stability of PSCs, focusing on their interfaces with the perovskite layer. Among the various CTLs, iron oxides, particularly hematite ( α -Fe _2 O _3 ) and magnetite (Fe _3 O _4 ) have shown significant potential due to their cost-effectiveness, stability, and non-toxicity. This study explores the use of α -Fe _2 O _3 as the electron transport layer (ETL) and a bilayer of magnetite (Fe _3 O _4 ) and spiro-OMeTAD as the hole transport layer (HTL). The incorporation of these iron oxides significantly enhances the optical and morphological properties of PSCs, achieving an impressive PCE of 18.63%, with a J _SC of 22.34 mA.cm ^−2 , V _OC of 1.14 V, and FF of 73.36%. These enhancements are attributed to improved thin film morphology, efficient charge collection, and reduced recombination losses. α -Fe _2 O _3 enhances electron mobility and reduces optical losses as the ETL, while Fe _3 O _4 in the HTL minimizes recombination and improves interfacial contact. Together, they significantly boost device efficiency and stability. This research presents a viable approach to achieving efficient and stable PSCs by utilizing iron oxides as CTLs.
ISSN:2053-1591

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