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Issue 4, 2018
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Critical analysis on the quality of stability studies of perovskite and dye solar cells

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Abstract

The success of perovskite and dye-sensitized solar cells will depend on their stability over the whole life-time. Aging tests are of utmost importance to identify deficiencies and to suggest cell improvements. Here we analyzed the quality of 261 recent aging tests and found serious shortcomings in current practices. For example, in about 50% of the studies only one sample was considered, meaning that the sample size was too small for statistical significance. We propose a new procedure for aging tests based on careful planning and scientific reporting. This includes estimating the required sample size for an aging test and avoiding so-called nuisance factors, i.e. unintended variations always present in real world testing. The improved procedure can provide more reliable information on stability and lifetime, which could contribute to better understanding of degradation mechanisms important for improving these photovoltaic technologies.

Graphical abstract: Critical analysis on the quality of stability studies of perovskite and dye solar cells

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Supplementary files

Article information


Submitted
17 Sep 2017
Accepted
21 Dec 2017
First published
05 Feb 2018

This article is Open Access

Energy Environ. Sci., 2018,11, 730-738
Article type
Analysis

Critical analysis on the quality of stability studies of perovskite and dye solar cells

A. Tiihonen, K. Miettunen, J. Halme, S. Lepikko, A. Poskela and P. D. Lund, Energy Environ. Sci., 2018, 11, 730
DOI: 10.1039/C7EE02670F

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

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    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
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    [Original citation] - Published by The Royal Society of Chemistry.

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