Reconsidering figures of merit for performance and stability of perovskite photovoltaics

Mark V. Khenkin; K. M. Anoop; Iris Visoly-Fisher; Yulia Galagan; Francesco Di Giacomo; Bhushan Ramesh Patil; Golnaz Sherafatipour; Vida Turkovic; Horst Günter Rubahn; Morten Madsen; Tamara Merckx; Griet Uytterhoeven; João P.A. Bastos; Tom Aernouts; Francesca Brunetti; Monica Lira-Cantu; Eugene A. Katz

doi:10.1039/c7ee02956j

Reconsidering figures of merit for performance and stability of perovskite photovoltaics

Mark V. Khenkin, K. M. Anoop, Iris Visoly-Fisher, Yulia Galagan, Francesco Di Giacomo, Bhushan Ramesh Patil, Golnaz Sherafatipour, Vida Turkovic, Horst Günter Rubahn, Morten Madsen, Tamara Merckx, Griet Uytterhoeven, João P.A. Bastos, Tom Aernouts, Francesca Brunetti, Monica Lira-Cantu, Eugene A. Katz

The Swiss Institute for Dryland Environmental and Energy Research

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

81 Scopus citations

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
Pages (from-to)	739-743
Number of pages	5
Journal	Energy and Environmental Science
Volume	11
Issue number	4
DOIs	https://doi.org/10.1039/c7ee02956j
State	Published - 1 Apr 2018

ASJC Scopus subject areas

Environmental Chemistry
Renewable Energy, Sustainability and the Environment
Nuclear Energy and Engineering
Pollution

UN SDGs

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

Access to Document

10.1039/c7ee02956j

Cite this

Khenkin, M. V., Anoop, K. M., Visoly-Fisher, I., Galagan, Y., Di Giacomo, F., Patil, B. R., Sherafatipour, G., Turkovic, V., Rubahn, H. G., Madsen, M., Merckx, T., Uytterhoeven, G., Bastos, J. P. A., Aernouts, T., Brunetti, F., Lira-Cantu, M., & Katz, E. A. (2018). Reconsidering figures of merit for performance and stability of perovskite photovoltaics. Energy and Environmental Science, 11(4), 739-743. https://doi.org/10.1039/c7ee02956j

@article{f7d563a6b49a459399ece435928dc450,

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, {Mark V.} and Anoop, {K. M.} and Iris Visoly-Fisher and Yulia Galagan and {Di Giacomo}, Francesco and Patil, {Bhushan Ramesh} and Golnaz Sherafatipour and Vida Turkovic and Rubahn, {Horst G{\"u}nter} and Morten Madsen and Tamara Merckx and Griet Uytterhoeven and Bastos, {Jo{\~a}o P.A.} and Tom Aernouts and Francesca Brunetti and Monica Lira-Cantu and Katz, {Eugene A.}",

note = "Publisher Copyright: {\textcopyright} 2018 The Royal Society of Chemistry.",

year = "2018",

month = apr,

day = "1",

doi = "10.1039/c7ee02956j",

language = "English",

volume = "11",

pages = "739--743",

journal = "Energy and Environmental Science",

issn = "1754-5692",

publisher = "Royal Society of Chemistry",

number = "4",

}

Khenkin, MV, Anoop, KM, Visoly-Fisher, I, Galagan, Y, Di Giacomo, F, Patil, BR, Sherafatipour, G, Turkovic, V, Rubahn, HG, Madsen, M, Merckx, T, Uytterhoeven, G, Bastos, JPA, Aernouts, T, Brunetti, F, Lira-Cantu, M & Katz, EA 2018, 'Reconsidering figures of merit for performance and stability of perovskite photovoltaics', Energy and 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, Mark V.

AU - Anoop, K. M.

AU - Visoly-Fisher, Iris

AU - Galagan, Yulia

AU - Di Giacomo, Francesco

AU - Patil, Bhushan Ramesh

AU - Sherafatipour, Golnaz

AU - Turkovic, Vida

AU - Rubahn, Horst Günter

AU - Madsen, Morten

AU - Merckx, Tamara

AU - Uytterhoeven, Griet

AU - Bastos, João P.A.

AU - Aernouts, Tom

AU - Brunetti, Francesca

AU - Lira-Cantu, Monica

AU - Katz, Eugene A.

PY - 2018/4/1

Y1 - 2018/4/1

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.

UR - http://www.scopus.com/inward/record.url?scp=85045917917&partnerID=8YFLogxK

U2 - 10.1039/c7ee02956j

DO - 10.1039/c7ee02956j

M3 - Article

AN - SCOPUS:85045917917

SN - 1754-5692

VL - 11

SP - 739

EP - 743

JO - Energy and Environmental Science

JF - Energy and Environmental Science

IS - 4

ER -

Reconsidering figures of merit for performance and stability of perovskite photovoltaics

Abstract

ASJC Scopus subject areas

UN SDGs

Access to Document

Other files and links

Fingerprint

Materials for Solar Energy Conversion and storage

Cite this

Reconsidering figures of merit for performance and stability of perovskite photovoltaics

Abstract

ASJC Scopus subject areas

UN SDGs

Access to Document

Other files and links

Fingerprint

Research Labs / Equipment

Materials for Solar Energy Conversion and storage

Cite this