Application of luminescence downshifting materials for enhanced stability of CH3NH3PbI3(1-x)Cl3x perovskite photovoltaic devices

Helder Scapin Anizelli; Vasil Stoichkov; Ricardo Vignoto Fernandes; José Leonil Duarte; Edson Laureto; Jeff Kettle; Iris Visoly-Fisher; Eugene A. Katz

doi:10.1016/j.orgel.2017.06.056

Application of luminescence downshifting materials for enhanced stability of CH₃NH₃PbI_3(1-x)Cl_3x perovskite photovoltaic devices

Helder Scapin Anizelli, Vasil Stoichkov, Ricardo Vignoto Fernandes, José Leonil Duarte, Edson Laureto, Jeff Kettle, Iris Visoly-Fisher, Eugene A. Katz

The Swiss Institute for Dryland Environmental and Energy Research

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

31 Scopus citations

Abstract

The application of luminescent down shifting (LDS) layers as alternative UV filters for CH₃NH₃PbI_3(1-x)Cl_3x perovskite solar cell (PSC) devices is reported. A combination of photo-absorption measurements and of device decay measurements during light soaking are used to verify the stability. The application of a UV filter or LDS layer was able to significantly retard photo-induced degradation with ∼18% drop in device power conversion efficiency (PCE) observed over 30 h for non-encapsulated devices, which is compared to ∼97% for an un-filtered device, also without encapsulation. Whilst the PCE of the PSC device decreases with the application of the LDS layer, the drop is not as significant as when a commercial UV filter is used. Considering that UV filters will be essential for the commercialization of PSCs, the work provides evidence that the LDS layer can act as an alternative UV filter in PSCs and can limit the drop in PCE that can be expected from the inclusion of a UV filter, thus providing an added benefit over commercial UV filters.

Original language	English
Pages (from-to)	129-134
Number of pages	6
Journal	Organic Electronics
Volume	49
DOIs	https://doi.org/10.1016/j.orgel.2017.06.056
State	Published - 1 Oct 2017

Keywords

Degradation
Luminescence downshifting
Perovskite
Solar cells
Stability

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Biomaterials
General Chemistry
Condensed Matter Physics
Materials Chemistry
Electrical and Electronic Engineering

UN SDGs

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

Access to Document

10.1016/j.orgel.2017.06.056

Cite this

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title = "Application of luminescence downshifting materials for enhanced stability of CH3NH3PbI3(1-x)Cl3x perovskite photovoltaic devices",

abstract = "The application of luminescent down shifting (LDS) layers as alternative UV filters for CH3NH3PbI3(1-x)Cl3x perovskite solar cell (PSC) devices is reported. A combination of photo-absorption measurements and of device decay measurements during light soaking are used to verify the stability. The application of a UV filter or LDS layer was able to significantly retard photo-induced degradation with ∼18% drop in device power conversion efficiency (PCE) observed over 30 h for non-encapsulated devices, which is compared to ∼97% for an un-filtered device, also without encapsulation. Whilst the PCE of the PSC device decreases with the application of the LDS layer, the drop is not as significant as when a commercial UV filter is used. Considering that UV filters will be essential for the commercialization of PSCs, the work provides evidence that the LDS layer can act as an alternative UV filter in PSCs and can limit the drop in PCE that can be expected from the inclusion of a UV filter, thus providing an added benefit over commercial UV filters.",

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AU - Stoichkov, Vasil

AU - Fernandes, Ricardo Vignoto

AU - Duarte, José Leonil

AU - Laureto, Edson

AU - Kettle, Jeff

AU - Visoly-Fisher, Iris

AU - Katz, Eugene A.

PY - 2017/10/1

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N2 - The application of luminescent down shifting (LDS) layers as alternative UV filters for CH3NH3PbI3(1-x)Cl3x perovskite solar cell (PSC) devices is reported. A combination of photo-absorption measurements and of device decay measurements during light soaking are used to verify the stability. The application of a UV filter or LDS layer was able to significantly retard photo-induced degradation with ∼18% drop in device power conversion efficiency (PCE) observed over 30 h for non-encapsulated devices, which is compared to ∼97% for an un-filtered device, also without encapsulation. Whilst the PCE of the PSC device decreases with the application of the LDS layer, the drop is not as significant as when a commercial UV filter is used. Considering that UV filters will be essential for the commercialization of PSCs, the work provides evidence that the LDS layer can act as an alternative UV filter in PSCs and can limit the drop in PCE that can be expected from the inclusion of a UV filter, thus providing an added benefit over commercial UV filters.

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