2026-04-18T06:15:14Zhttps://recercat.cat/oai/requestoai:recercat.cat:2072/5296302024-12-20T19:34:19Zcom_2072_300912com_2072_4427col_2072_301309
RECERCAT
author
Su, Lijun
author
Méndez Màlaga, Maria
author
Jiménez-López, Jesús
author
Zhu, Miaoli
author
Xiao, Yaoming
author
Palomares Gil, Emilio José
2022-12-16T12:51:55Z2024-04-23T11:06:05Z
2022-12-16T12:51:55Z2024-04-23T11:06:05Z
2021-07-12
http://hdl.handle.net/2072/529630
https://doi.org/10.1002/cplu.202100204
Previous studies have revealed that for some perovskite compositions, power conversion efficiencies (PCEs) improved after storing the devices in different ambient conditions. With the aim of better understanding such improvements, we focus our attention on the carrier/ionic dynamic kinetics of fresh and aged PSCs with different perovskite compositions (MAPbI3 and MAPbBr3) and using spiro-OMeTAD as HTM. For that, we use transient photovoltage (TPV), a technique used to analyse the different recombination kinetics at equilibrium and at different illumination times. We observe that the aging treatment causes significant changes on the kinetics behaviour for bromide-based devices, resulting in a positive influence on the cell performance (from 3.5 % to 6.1 % PCE, in reverse scan). However, the kinetics for those iodide-based perovskite solar cells remains unchangeable (from 16.3 % to 15.0 % PCE, in reverse scan).
eng
Analysis of the Oxygen Passivation Effects on MAPbI3 and MAPbBr3 in Fresh and Aged Solar Cells by the Transient Photovoltage Technique
info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion
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https://recercat.cat/bitstream/2072/529630/1/ChemPlusChem_2021_1316.pdf
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ChemPlusChem_2021_1316.pdf
URL
https://recercat.cat/bitstream/2072/529630/2/ChemPlusChem_2021_1316.pdf.txt
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ChemPlusChem_2021_1316.pdf.txt