Reconsidering figures of merit for performance and stability of perovskite photovoltaics

M. V. Khenkin; K. M. Anoop; Iris Visoly-Fisher; Y. Galagan; F.  Di Giacomo; Bhushan Ramesh Patil; Golnaz Sherafatipour; Vida Engmann; Horst-Günter Rubahn; Morten Madsen; T. Merckx; G.  Uytterhoeven; J. P. A.  Bastos; T. Aernouts; F. Brunetti; M. Lira-Cantu; E. Katz

doi:10.1039/C7EE02956J

Reconsidering figures of merit for performance and stability of perovskite photovoltaics

M. V. Khenkin, K. M. Anoop, Iris Visoly-Fisher, Y. Galagan, F. Di Giacomo, Bhushan Ramesh Patil, Golnaz Sherafatipour, Vida Engmann, Horst-Günter Rubahn, Morten Madsen, T. Merckx, G. Uytterhoeven, J. P. A. Bastos, T. Aernouts, F. Brunetti, M. Lira-Cantu, E. Katz

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Abstract

The development of hybrid organic–inorganic halide perovskite solar cells (PSCs) that combine high performance and operational stability is vital for implementing this technology. Recently, reversible improvement and degradation of PSC efficiency have been reported under illumination–darkness cycling. Quantifying the performance and stability of cells exhibiting significant diurnal performance variations is challenging. We report the outdoor stability measurements of two types of devices showing either reversible photo-degradation or reversible efficiency improvement under sunlight. Instead of the initial (or stabilized) efficiency and T80 as the figures of merit for the performance and stability of such devices, we propose using the value of the energy output generated during the first day of exposure and the time needed to reach its 20% drop, respectively. The latter accounts for both the long-term irreversible degradation and the reversible diurnal efficiency variation and does not depend on the type of process prevailing in a given perovskite cell.

Original language	English
Journal	Energy & Environmental Science
Volume	11
Issue number	4
Pages (from-to)	739-743
ISSN	1754-5706
DOIs	https://doi.org/10.1039/C7EE02956J
Publication status	Published - 2018

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Khenkin, M. V., Anoop, K. M., Visoly-Fisher, I., Galagan, Y., Di Giacomo, F., Patil, B. R., Sherafatipour, G., Engmann, V., Rubahn, H.-G., Madsen, M., Merckx, T., Uytterhoeven, G., Bastos, J. P. A., Aernouts, T., Brunetti, F., Lira-Cantu, M., & Katz, E. (2018). Reconsidering figures of merit for performance and stability of perovskite photovoltaics. Energy & Environmental Science, 11(4), 739-743. https://doi.org/10.1039/C7EE02956J

@article{ed622516b80d43b28c56983ef2372214,

title = "Reconsidering figures of merit for performance and stability of perovskite photovoltaics",

abstract = "The development of hybrid organic–inorganic halide perovskite solar cells (PSCs) that combine high performance and operational stability is vital for implementing this technology. Recently, reversible improvement and degradation of PSC efficiency have been reported under illumination–darkness cycling. Quantifying the performance and stability of cells exhibiting significant diurnal performance variations is challenging. We report the outdoor stability measurements of two types of devices showing either reversible photo-degradation or reversible efficiency improvement under sunlight. Instead of the initial (or stabilized) efficiency and T80 as the figures of merit for the performance and stability of such devices, we propose using the value of the energy output generated during the first day of exposure and the time needed to reach its 20% drop, respectively. The latter accounts for both the long-term irreversible degradation and the reversible diurnal efficiency variation and does not depend on the type of process prevailing in a given perovskite cell.",

author = "Khenkin, {M. V.} and Anoop, {K. M.} and Iris Visoly-Fisher and Y. Galagan and {Di Giacomo}, F. and Patil, {Bhushan Ramesh} and Golnaz Sherafatipour and Vida Engmann and Horst-G{\"u}nter Rubahn and Morten Madsen and T. Merckx and G. Uytterhoeven and Bastos, {J. P. A.} and T. Aernouts and F. Brunetti and M. Lira-Cantu and E. Katz",

year = "2018",

doi = "10.1039/C7EE02956J",

language = "English",

volume = "11",

pages = "739--743",

journal = "Energy & Environmental Science",

issn = "1754-5706",

publisher = "Royal Society of Chemistry",

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Khenkin, MV, Anoop, KM, Visoly-Fisher, I, Galagan, Y, Di Giacomo, F, Patil, BR, Sherafatipour, G, Engmann, V , Rubahn, H-G , Madsen, M, Merckx, T, Uytterhoeven, G, Bastos, JPA, Aernouts, T, Brunetti, F, Lira-Cantu, M & Katz, E 2018, 'Reconsidering figures of merit for performance and stability of perovskite photovoltaics', Energy & Environmental Science, vol. 11, no. 4, pp. 739-743. https://doi.org/10.1039/C7EE02956J

TY - JOUR

T1 - Reconsidering figures of merit for performance and stability of perovskite photovoltaics

AU - Khenkin, M. V.

AU - Anoop, K. M.

AU - Visoly-Fisher, Iris

AU - Galagan, Y.

AU - Di Giacomo, F.

AU - Patil, Bhushan Ramesh

AU - Sherafatipour, Golnaz

AU - Engmann, Vida

AU - Rubahn, Horst-Günter

AU - Madsen, Morten

AU - Merckx, T.

AU - Uytterhoeven, G.

AU - Bastos, J. P. A.

AU - Aernouts, T.

AU - Brunetti, F.

AU - Lira-Cantu, M.

AU - Katz, E.

PY - 2018

Y1 - 2018

N2 - The development of hybrid organic–inorganic halide perovskite solar cells (PSCs) that combine high performance and operational stability is vital for implementing this technology. Recently, reversible improvement and degradation of PSC efficiency have been reported under illumination–darkness cycling. Quantifying the performance and stability of cells exhibiting significant diurnal performance variations is challenging. We report the outdoor stability measurements of two types of devices showing either reversible photo-degradation or reversible efficiency improvement under sunlight. Instead of the initial (or stabilized) efficiency and T80 as the figures of merit for the performance and stability of such devices, we propose using the value of the energy output generated during the first day of exposure and the time needed to reach its 20% drop, respectively. The latter accounts for both the long-term irreversible degradation and the reversible diurnal efficiency variation and does not depend on the type of process prevailing in a given perovskite cell.

AB - The development of hybrid organic–inorganic halide perovskite solar cells (PSCs) that combine high performance and operational stability is vital for implementing this technology. Recently, reversible improvement and degradation of PSC efficiency have been reported under illumination–darkness cycling. Quantifying the performance and stability of cells exhibiting significant diurnal performance variations is challenging. We report the outdoor stability measurements of two types of devices showing either reversible photo-degradation or reversible efficiency improvement under sunlight. Instead of the initial (or stabilized) efficiency and T80 as the figures of merit for the performance and stability of such devices, we propose using the value of the energy output generated during the first day of exposure and the time needed to reach its 20% drop, respectively. The latter accounts for both the long-term irreversible degradation and the reversible diurnal efficiency variation and does not depend on the type of process prevailing in a given perovskite cell.

U2 - 10.1039/C7EE02956J

DO - 10.1039/C7EE02956J

M3 - Journal article

SN - 1754-5706

VL - 11

SP - 739

EP - 743

JO - Energy & Environmental Science

JF - Energy & Environmental Science

IS - 4

ER -

Reconsidering figures of merit for performance and stability of perovskite photovoltaics

Abstract

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