Dynamics of Photoinduced Degradation of Perovskite Photovoltaics: From Reversible to Irreversible Processes

Mark V. Khenkin; K. M. Anoop; Iris Visoly-Fisher; Sofiya Kolusheva; Yulia Galagan; Francesco Di Giacomo; Olivera Vukovic; Bhushan Ramesh Patil; Golnaz Sherafatipour; Vida Turkovic; Horst Günter Rubahn; Morten Madsen; Alexander V. Mazanik; Eugene A. Katz

doi:10.1021/acsaem.7b00256

Dynamics of Photoinduced Degradation of Perovskite Photovoltaics: From Reversible to Irreversible Processes

Mark V. Khenkin, K. M. Anoop, Iris Visoly-Fisher, Sofiya Kolusheva, Yulia Galagan, Francesco Di Giacomo, Olivera Vukovic, Bhushan Ramesh Patil, Golnaz Sherafatipour, Vida Turkovic, Horst Günter Rubahn, Morten Madsen, Alexander V. Mazanik, Eugene A. Katz

Ben-Gurion University of the Negev

Research output: Contribution to journal › Article › peer-review

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/Cs_0.05((CH₃NH₃)_0.15(CH(NH₂)₂)_0.85)_0.95PbI_2.55Br_0.45/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.

Original language	American English
Pages (from-to)	799-806
Number of pages	8
Journal	ACS Applied Energy Materials
Volume	1
Issue number	2
DOIs	https://doi.org/10.1021/acsaem.7b00256
State	Published - 26 Feb 2018

Keywords

light soaking
perovskite solar cells
recovery dynamics
reversible and irreversible degradation
stability

All Science Journal Classification (ASJC) codes

Chemical Engineering (miscellaneous)
Energy Engineering and Power Technology
Electrochemistry
Materials Chemistry
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1021/acsaem.7b00256

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Khenkin, M. V., Anoop, K. M., Visoly-Fisher, I., Kolusheva, S., Galagan, Y., Di Giacomo, F., Vukovic, O., Patil, B. R., Sherafatipour, G., Turkovic, V., Rubahn, H. G., Madsen, M., Mazanik, A. V., & Katz, E. A. (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

@article{1fce4dc980874ff9b082110d941639ad,

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.",

keywords = "light soaking, perovskite solar cells, recovery dynamics, reversible and irreversible degradation, stability",

author = "Khenkin, {Mark V.} and Anoop, {K. M.} and Iris Visoly-Fisher and Sofiya Kolusheva and Yulia Galagan and {Di Giacomo}, Francesco and Olivera Vukovic and Patil, {Bhushan Ramesh} and Golnaz Sherafatipour and Vida Turkovic and Rubahn, {Horst G{\"u}nter} and Morten Madsen and Mazanik, {Alexander V.} and Katz, {Eugene A.}",

note = "Publisher Copyright: {\textcopyright} 2018 American Chemical Society.",

year = "2018",

month = feb,

day = "26",

doi = "10.1021/acsaem.7b00256",

language = "American English",

volume = "1",

pages = "799--806",

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Khenkin, MV, Anoop, KM, Visoly-Fisher, I, Kolusheva, S, Galagan, Y, Di Giacomo, F, Vukovic, O, Patil, BR, Sherafatipour, G, Turkovic, V, Rubahn, HG, Madsen, M, Mazanik, AV & Katz, EA 2018, 'Dynamics of Photoinduced Degradation of Perovskite Photovoltaics: From Reversible to Irreversible Processes', ACS Applied Energy Materials, vol. 1, no. 2, pp. 799-806. https://doi.org/10.1021/acsaem.7b00256

TY - JOUR

T1 - Dynamics of Photoinduced Degradation of Perovskite Photovoltaics

T2 - From Reversible to Irreversible Processes

AU - Khenkin, Mark V.

AU - Anoop, K. M.

AU - Visoly-Fisher, Iris

AU - Kolusheva, Sofiya

AU - Galagan, Yulia

AU - Di Giacomo, Francesco

AU - Vukovic, Olivera

AU - Patil, Bhushan Ramesh

AU - Sherafatipour, Golnaz

AU - Turkovic, Vida

AU - Rubahn, Horst Günter

AU - Madsen, Morten

AU - Mazanik, Alexander V.

AU - Katz, Eugene A.

PY - 2018/2/26

Y1 - 2018/2/26

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.

KW - light soaking

KW - perovskite solar cells

KW - recovery dynamics

KW - reversible and irreversible degradation

KW - stability

UR - http://www.scopus.com/inward/record.url?scp=85048485403&partnerID=8YFLogxK

U2 - 10.1021/acsaem.7b00256

DO - 10.1021/acsaem.7b00256

M3 - Article

SN - 2574-0962

VL - 1

SP - 799

EP - 806

JO - ACS Applied Energy Materials

JF - ACS Applied Energy Materials

IS - 2

ER -

Dynamics of Photoinduced Degradation of Perovskite Photovoltaics: From Reversible to Irreversible Processes

Abstract

Keywords

All Science Journal Classification (ASJC) codes

UN SDGs

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