Printable luminescent down shifter for enhancing efficiency and stability of organic photovoltaics

J. Kettle; N. Bristow; D. T. Gethin; Z. Tehrani; O. Moudam; B. Li; E. A. Katz; G. A. Dos Reis Benatto; F. C. Krebs

doi:10.1016/j.solmat.2015.09.037

Printable luminescent down shifter for enhancing efficiency and stability of organic photovoltaics

J. Kettle, N. Bristow, D. T. Gethin, Z. Tehrani, O. Moudam, B. Li, E. A. Katz, G. A. Dos Reis Benatto, F. C. Krebs

The Swiss Institute for Dryland Environmental and Energy Research

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

52 Scopus citations

Abstract

The proof of concept of using luminescent down shifting (LDS) layers as alternative UV filters for P3HT:PCBM OPVs is demonstrated using a lanthanide-based metal complex. The results are verified using a combination of indoor light soaking, with single cell devices, and outdoor performance monitoring, using a 16-cell monolithically connected OPV module. By applying the LDS layer, a ∼5% relative enhancement in photocurrent is observed for both sets of devices. More significantly, indoor light soaking tests on single cell devices without encapsulation showed an 850% enhancement in the measured half-life (T_50%). The OPV modules were encapsulated and tested for outdoor stability over a 70 day period in the Negev desert, Israel. The modules made with the LDS filter are shown to match the stability of those made with a commercial UV filter and outperform the modules with no filter applied, with a 51% enhancement in the measured stability (T_75%). Significantly, the work provides clear experimental evidence that the LDS layer can act as a UV filter in OPVs without compromising the efficiency of the solar cell, thus providing an added benefit over commercial UV filters.

Original language	English
Pages (from-to)	481-487
Number of pages	7
Journal	Solar Energy Materials and Solar Cells
Volume	144
DOIs	https://doi.org/10.1016/j.solmat.2015.09.037
State	Published - 1 Jan 2016

Keywords

Degradation
Luminescent material
Organic photovoltaics
Outdoor performance
UV filter

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films

UN SDGs

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

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10.1016/j.solmat.2015.09.037

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@article{7eb9af434d8146429d0fff8fd2999376,

title = "Printable luminescent down shifter for enhancing efficiency and stability of organic photovoltaics",

abstract = "The proof of concept of using luminescent down shifting (LDS) layers as alternative UV filters for P3HT:PCBM OPVs is demonstrated using a lanthanide-based metal complex. The results are verified using a combination of indoor light soaking, with single cell devices, and outdoor performance monitoring, using a 16-cell monolithically connected OPV module. By applying the LDS layer, a ∼5% relative enhancement in photocurrent is observed for both sets of devices. More significantly, indoor light soaking tests on single cell devices without encapsulation showed an 850% enhancement in the measured half-life (T50%). The OPV modules were encapsulated and tested for outdoor stability over a 70 day period in the Negev desert, Israel. The modules made with the LDS filter are shown to match the stability of those made with a commercial UV filter and outperform the modules with no filter applied, with a 51% enhancement in the measured stability (T75%). Significantly, the work provides clear experimental evidence that the LDS layer can act as a UV filter in OPVs without compromising the efficiency of the solar cell, thus providing an added benefit over commercial UV filters.",

keywords = "Degradation, Luminescent material, Organic photovoltaics, Outdoor performance, UV filter",

author = "J. Kettle and N. Bristow and Gethin, {D. T.} and Z. Tehrani and O. Moudam and B. Li and Katz, {E. A.} and {Dos Reis Benatto}, {G. A.} and Krebs, {F. C.}",

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doi = "10.1016/j.solmat.2015.09.037",

language = "English",

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T1 - Printable luminescent down shifter for enhancing efficiency and stability of organic photovoltaics

AU - Kettle, J.

AU - Bristow, N.

AU - Gethin, D. T.

AU - Tehrani, Z.

AU - Moudam, O.

AU - Li, B.

AU - Katz, E. A.

AU - Dos Reis Benatto, G. A.

AU - Krebs, F. C.

PY - 2016/1/1

Y1 - 2016/1/1

N2 - The proof of concept of using luminescent down shifting (LDS) layers as alternative UV filters for P3HT:PCBM OPVs is demonstrated using a lanthanide-based metal complex. The results are verified using a combination of indoor light soaking, with single cell devices, and outdoor performance monitoring, using a 16-cell monolithically connected OPV module. By applying the LDS layer, a ∼5% relative enhancement in photocurrent is observed for both sets of devices. More significantly, indoor light soaking tests on single cell devices without encapsulation showed an 850% enhancement in the measured half-life (T50%). The OPV modules were encapsulated and tested for outdoor stability over a 70 day period in the Negev desert, Israel. The modules made with the LDS filter are shown to match the stability of those made with a commercial UV filter and outperform the modules with no filter applied, with a 51% enhancement in the measured stability (T75%). Significantly, the work provides clear experimental evidence that the LDS layer can act as a UV filter in OPVs without compromising the efficiency of the solar cell, thus providing an added benefit over commercial UV filters.

AB - The proof of concept of using luminescent down shifting (LDS) layers as alternative UV filters for P3HT:PCBM OPVs is demonstrated using a lanthanide-based metal complex. The results are verified using a combination of indoor light soaking, with single cell devices, and outdoor performance monitoring, using a 16-cell monolithically connected OPV module. By applying the LDS layer, a ∼5% relative enhancement in photocurrent is observed for both sets of devices. More significantly, indoor light soaking tests on single cell devices without encapsulation showed an 850% enhancement in the measured half-life (T50%). The OPV modules were encapsulated and tested for outdoor stability over a 70 day period in the Negev desert, Israel. The modules made with the LDS filter are shown to match the stability of those made with a commercial UV filter and outperform the modules with no filter applied, with a 51% enhancement in the measured stability (T75%). Significantly, the work provides clear experimental evidence that the LDS layer can act as a UV filter in OPVs without compromising the efficiency of the solar cell, thus providing an added benefit over commercial UV filters.

KW - Degradation

KW - Luminescent material

KW - Organic photovoltaics

KW - Outdoor performance

KW - UV filter

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ER -

Printable luminescent down shifter for enhancing efficiency and stability of organic photovoltaics

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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