Dynamics of photoinduced degradation of perovskite photovoltaics: from reversible to irreversible processes

M. V. Khenkin, K. M. Anoop, I. Visoly-Fischer, S. Kolusheva, Y. Galagan, F. Di Giacomo, O. Vukovic, Bhushan Ramesh Patil, Golnaz Sherafatipour, Vida Engmann, Horst-Günter Rubahn, Morten Madsen, A. V. Mazanik, E. Katz

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Resumé

The operational stability of perovskite solar cells (PSCs) remains a limiting factor in their commercial implementation. We studied the long-term outdoor stability of ITO/SnO2/Cs0.05((CH3NH3)0.15(CH(NH2)2)0.85)0.95PbI2.55Br0.45/spiro-OMeTAD/Au cells, as well as the dynamics of their degradation, under simulated sunlight indoors and their recovery in the dark. The extent of overall degradation was found to depend on processes occurring both under illumination and in the dark, i.e., during the daytime and nighttime, with the dynamics varying with cell aging. Full recovery of efficiency in the dark was observed for cells at early degradation stages. Further cell degradation resulted in recovery times much longer than one night, appearing as irreversible degradation under real operational conditions. At later degradation stages, very different dynamics were observed: short-circuit current density and fill factor exhibited a pronounced drop upon light turn-off but strong improvement under subsequent illumination. The interplay of reversible and irreversible degradation processes with different recovery dynamics was demonstrated to result in changes in the cell’s diurnal PCE dependence during its operational lifespan under real sunlight conditions.
OriginalsprogEngelsk
TidsskriftACS Applied Energy Materials
Vol/bind1
Udgave nummer2
Sider (fra-til)799-806
ISSN2574-0962
DOI
StatusUdgivet - 2018

Fingeraftryk

perovskite
density current
limiting factor
fill

Citer dette

Khenkin, M. V., Anoop, K. M., Visoly-Fischer, I., Kolusheva, S., Galagan, Y., Di Giacomo, F., ... Katz, E. (2018). Dynamics of photoinduced degradation of perovskite photovoltaics: from reversible to irreversible processes. ACS Applied Energy Materials, 1(2), 799-806. https://doi.org/10.1021/acsaem.7b00256
Khenkin, M. V. ; Anoop, K. M. ; Visoly-Fischer, I. ; Kolusheva, S. ; Galagan, Y. ; Di Giacomo, F. ; Vukovic, O. ; Patil, Bhushan Ramesh ; Sherafatipour, Golnaz ; Engmann, Vida ; Rubahn, Horst-Günter ; Madsen, Morten ; Mazanik, A. V. ; Katz, E. / Dynamics of photoinduced degradation of perovskite photovoltaics : from reversible to irreversible processes. I: ACS Applied Energy Materials. 2018 ; Bind 1, Nr. 2. s. 799-806.
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title = "Dynamics of photoinduced degradation of perovskite photovoltaics: from reversible to irreversible processes",
abstract = "The operational stability of perovskite solar cells (PSCs) remains a limiting factor in their commercial implementation. We studied the long-term outdoor stability of ITO/SnO2/Cs0.05((CH3NH3)0.15(CH(NH2)2)0.85)0.95PbI2.55Br0.45/spiro-OMeTAD/Au cells, as well as the dynamics of their degradation, under simulated sunlight indoors and their recovery in the dark. The extent of overall degradation was found to depend on processes occurring both under illumination and in the dark, i.e., during the daytime and nighttime, with the dynamics varying with cell aging. Full recovery of efficiency in the dark was observed for cells at early degradation stages. Further cell degradation resulted in recovery times much longer than one night, appearing as irreversible degradation under real operational conditions. At later degradation stages, very different dynamics were observed: short-circuit current density and fill factor exhibited a pronounced drop upon light turn-off but strong improvement under subsequent illumination. The interplay of reversible and irreversible degradation processes with different recovery dynamics was demonstrated to result in changes in the cell’s diurnal PCE dependence during its operational lifespan under real sunlight conditions.",
author = "Khenkin, {M. V.} and Anoop, {K. M.} and I. Visoly-Fischer and S. Kolusheva and Y. Galagan and {Di Giacomo}, F. and O. Vukovic and Patil, {Bhushan Ramesh} and Golnaz Sherafatipour and Vida Engmann and Horst-G{\"u}nter Rubahn and Morten Madsen and Mazanik, {A. V.} and E. Katz",
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Khenkin, MV, Anoop, KM, Visoly-Fischer, I, Kolusheva, S, Galagan, Y, Di Giacomo, F, Vukovic, O, Patil, BR, Sherafatipour, G, Engmann, V, Rubahn, H-G, Madsen, M, Mazanik, AV & Katz, E 2018, 'Dynamics of photoinduced degradation of perovskite photovoltaics: from reversible to irreversible processes', ACS Applied Energy Materials, bind 1, nr. 2, s. 799-806. https://doi.org/10.1021/acsaem.7b00256

Dynamics of photoinduced degradation of perovskite photovoltaics : from reversible to irreversible processes. / Khenkin, M. V.; Anoop, K. M.; Visoly-Fischer, I.; Kolusheva, S.; Galagan, Y.; Di Giacomo, F. ; Vukovic, O.; Patil, Bhushan Ramesh; Sherafatipour, Golnaz; Engmann, Vida; Rubahn, Horst-Günter; Madsen, Morten; Mazanik, A. V.; Katz, E.

I: ACS Applied Energy Materials, Bind 1, Nr. 2, 2018, s. 799-806.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Dynamics of photoinduced degradation of perovskite photovoltaics

T2 - from reversible to irreversible processes

AU - Khenkin, M. V.

AU - Anoop, K. M.

AU - Visoly-Fischer, I.

AU - Kolusheva, S.

AU - Galagan, Y.

AU - Di Giacomo, F.

AU - Vukovic, O.

AU - Patil, Bhushan Ramesh

AU - Sherafatipour, Golnaz

AU - Engmann, Vida

AU - Rubahn, Horst-Günter

AU - Madsen, Morten

AU - Mazanik, A. V.

AU - Katz, E.

PY - 2018

Y1 - 2018

N2 - The operational stability of perovskite solar cells (PSCs) remains a limiting factor in their commercial implementation. We studied the long-term outdoor stability of ITO/SnO2/Cs0.05((CH3NH3)0.15(CH(NH2)2)0.85)0.95PbI2.55Br0.45/spiro-OMeTAD/Au cells, as well as the dynamics of their degradation, under simulated sunlight indoors and their recovery in the dark. The extent of overall degradation was found to depend on processes occurring both under illumination and in the dark, i.e., during the daytime and nighttime, with the dynamics varying with cell aging. Full recovery of efficiency in the dark was observed for cells at early degradation stages. Further cell degradation resulted in recovery times much longer than one night, appearing as irreversible degradation under real operational conditions. At later degradation stages, very different dynamics were observed: short-circuit current density and fill factor exhibited a pronounced drop upon light turn-off but strong improvement under subsequent illumination. The interplay of reversible and irreversible degradation processes with different recovery dynamics was demonstrated to result in changes in the cell’s diurnal PCE dependence during its operational lifespan under real sunlight conditions.

AB - The operational stability of perovskite solar cells (PSCs) remains a limiting factor in their commercial implementation. We studied the long-term outdoor stability of ITO/SnO2/Cs0.05((CH3NH3)0.15(CH(NH2)2)0.85)0.95PbI2.55Br0.45/spiro-OMeTAD/Au cells, as well as the dynamics of their degradation, under simulated sunlight indoors and their recovery in the dark. The extent of overall degradation was found to depend on processes occurring both under illumination and in the dark, i.e., during the daytime and nighttime, with the dynamics varying with cell aging. Full recovery of efficiency in the dark was observed for cells at early degradation stages. Further cell degradation resulted in recovery times much longer than one night, appearing as irreversible degradation under real operational conditions. At later degradation stages, very different dynamics were observed: short-circuit current density and fill factor exhibited a pronounced drop upon light turn-off but strong improvement under subsequent illumination. The interplay of reversible and irreversible degradation processes with different recovery dynamics was demonstrated to result in changes in the cell’s diurnal PCE dependence during its operational lifespan under real sunlight conditions.

U2 - 10.1021/acsaem.7b00256

DO - 10.1021/acsaem.7b00256

M3 - Journal article

VL - 1

SP - 799

EP - 806

JO - ACS Applied Energy Materials

JF - ACS Applied Energy Materials

SN - 2574-0962

IS - 2

ER -