Biomimetic Approach to Inhibition of Photooxidation in Organic Solar Cells Using Beta-Carotene as an Additive

Vida Turkovic*, Michela Prete, Mikkel Bregnhøj, Liana Inasaridze, Dmytro Volyniuk, Filipp A. Obrezkov, Juozas Vidas Gražulevičius, Sebastian Engmann, Horst-Günter Rubahn, Pavel A. Troshin, Peter R. Ogilby, Morten Madsen

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Resumé

Recent efficiency records of organic photovoltaics (OPV) highlight stability as a limiting weakness. Incorporation of stabilizers is a desirable approach for inhibiting degradation—it is inexpensive and readily up-scalable. However, to date, such additives have had limited success. We show that β-carotene (BC), an inexpensive and green, naturally occurring antioxidant, dramatically improves OPV stability. When compared to nonstabilized reference devices, the accumulated power generation of PTB7:[70]PCBM devices in the presence of BC increases by an impressive factor of 6, due to stabilization of both the burn-in and the lifetime, and by a factor of 21 for P3HT:[60]PCBM devices, owing to a longer lifetime. Using electron spin resonance and time-resolved near-IR emission spectroscopies, we probed radical and singlet oxygen concentrations. We demonstrate that singlet oxygen sensitized by [70]PCBM causes the “burn-in” of PTB7:[70]PCBM devices and that BC effectively mitigates it. Our results provide an effective solution to the problem that currently limits widespread use of OPV.
OriginalsprogEngelsk
TidsskriftA C S Applied Materials and Interfaces
Vol/bind11
Udgave nummer44
Sider (fra-til)41570−41579
ISSN1944-8244
DOI
StatusUdgivet - 6. nov. 2019

Fingeraftryk

Singlet Oxygen
Photooxidation
beta Carotene
Biomimetics
Oxygen
Emission spectroscopy
Carotenoids
Antioxidants
Power generation
Paramagnetic resonance
Infrared spectroscopy
Stabilization
Organic solar cells

Citer dette

Turkovic, Vida ; Prete, Michela ; Bregnhøj, Mikkel ; Inasaridze, Liana ; Volyniuk, Dmytro ; Obrezkov, Filipp A. ; Gražulevičius, Juozas Vidas ; Engmann, Sebastian ; Rubahn, Horst-Günter ; Troshin, Pavel A. ; Ogilby, Peter R. ; Madsen, Morten. / Biomimetic Approach to Inhibition of Photooxidation in Organic Solar Cells Using Beta-Carotene as an Additive. I: A C S Applied Materials and Interfaces. 2019 ; Bind 11, Nr. 44. s. 41570−41579.
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title = "Biomimetic Approach to Inhibition of Photooxidation in Organic Solar Cells Using Beta-Carotene as an Additive",
abstract = "Recent efficiency records of organic photovoltaics (OPV) highlight stability as a limiting weakness. Incorporation of stabilizers is a desirable approach for inhibiting degradation—it is inexpensive and readily up-scalable. However, to date, such additives have had limited success. We show that β-carotene (BC), an inexpensive and green, naturally occurring antioxidant, dramatically improves OPV stability. When compared to nonstabilized reference devices, the accumulated power generation of PTB7:[70]PCBM devices in the presence of BC increases by an impressive factor of 6, due to stabilization of both the burn-in and the lifetime, and by a factor of 21 for P3HT:[60]PCBM devices, owing to a longer lifetime. Using electron spin resonance and time-resolved near-IR emission spectroscopies, we probed radical and singlet oxygen concentrations. We demonstrate that singlet oxygen sensitized by [70]PCBM causes the “burn-in” of PTB7:[70]PCBM devices and that BC effectively mitigates it. Our results provide an effective solution to the problem that currently limits widespread use of OPV.",
keywords = "organic solar cells, singlet oxygen, stability, burn-in, Antioxidant",
author = "Vida Turkovic and Michela Prete and Mikkel Bregnh{\o}j and Liana Inasaridze and Dmytro Volyniuk and Obrezkov, {Filipp A.} and Gražulevičius, {Juozas Vidas} and Sebastian Engmann and Horst-G{\"u}nter Rubahn and Troshin, {Pavel A.} and Ogilby, {Peter R.} and Morten Madsen",
year = "2019",
month = "11",
day = "6",
doi = "10.1021/acsami.9b13085",
language = "English",
volume = "11",
pages = "41570−41579",
journal = "A C S Applied Materials and Interfaces",
issn = "1944-8244",
publisher = "American Chemical Society",
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Turkovic, V, Prete, M, Bregnhøj, M, Inasaridze, L, Volyniuk, D, Obrezkov, FA, Gražulevičius, JV, Engmann, S, Rubahn, H-G, Troshin, PA, Ogilby, PR & Madsen, M 2019, 'Biomimetic Approach to Inhibition of Photooxidation in Organic Solar Cells Using Beta-Carotene as an Additive', A C S Applied Materials and Interfaces, bind 11, nr. 44, s. 41570−41579. https://doi.org/10.1021/acsami.9b13085

Biomimetic Approach to Inhibition of Photooxidation in Organic Solar Cells Using Beta-Carotene as an Additive. / Turkovic, Vida; Prete, Michela; Bregnhøj, Mikkel; Inasaridze, Liana ; Volyniuk, Dmytro; Obrezkov, Filipp A. ; Gražulevičius, Juozas Vidas; Engmann, Sebastian; Rubahn, Horst-Günter; Troshin, Pavel A. ; Ogilby, Peter R.; Madsen, Morten.

I: A C S Applied Materials and Interfaces, Bind 11, Nr. 44, 06.11.2019, s. 41570−41579.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Biomimetic Approach to Inhibition of Photooxidation in Organic Solar Cells Using Beta-Carotene as an Additive

AU - Turkovic, Vida

AU - Prete, Michela

AU - Bregnhøj, Mikkel

AU - Inasaridze, Liana

AU - Volyniuk, Dmytro

AU - Obrezkov, Filipp A.

AU - Gražulevičius, Juozas Vidas

AU - Engmann, Sebastian

AU - Rubahn, Horst-Günter

AU - Troshin, Pavel A.

AU - Ogilby, Peter R.

AU - Madsen, Morten

PY - 2019/11/6

Y1 - 2019/11/6

N2 - Recent efficiency records of organic photovoltaics (OPV) highlight stability as a limiting weakness. Incorporation of stabilizers is a desirable approach for inhibiting degradation—it is inexpensive and readily up-scalable. However, to date, such additives have had limited success. We show that β-carotene (BC), an inexpensive and green, naturally occurring antioxidant, dramatically improves OPV stability. When compared to nonstabilized reference devices, the accumulated power generation of PTB7:[70]PCBM devices in the presence of BC increases by an impressive factor of 6, due to stabilization of both the burn-in and the lifetime, and by a factor of 21 for P3HT:[60]PCBM devices, owing to a longer lifetime. Using electron spin resonance and time-resolved near-IR emission spectroscopies, we probed radical and singlet oxygen concentrations. We demonstrate that singlet oxygen sensitized by [70]PCBM causes the “burn-in” of PTB7:[70]PCBM devices and that BC effectively mitigates it. Our results provide an effective solution to the problem that currently limits widespread use of OPV.

AB - Recent efficiency records of organic photovoltaics (OPV) highlight stability as a limiting weakness. Incorporation of stabilizers is a desirable approach for inhibiting degradation—it is inexpensive and readily up-scalable. However, to date, such additives have had limited success. We show that β-carotene (BC), an inexpensive and green, naturally occurring antioxidant, dramatically improves OPV stability. When compared to nonstabilized reference devices, the accumulated power generation of PTB7:[70]PCBM devices in the presence of BC increases by an impressive factor of 6, due to stabilization of both the burn-in and the lifetime, and by a factor of 21 for P3HT:[60]PCBM devices, owing to a longer lifetime. Using electron spin resonance and time-resolved near-IR emission spectroscopies, we probed radical and singlet oxygen concentrations. We demonstrate that singlet oxygen sensitized by [70]PCBM causes the “burn-in” of PTB7:[70]PCBM devices and that BC effectively mitigates it. Our results provide an effective solution to the problem that currently limits widespread use of OPV.

KW - organic solar cells

KW - singlet oxygen

KW - stability

KW - burn-in

KW - Antioxidant

U2 - 10.1021/acsami.9b13085

DO - 10.1021/acsami.9b13085

M3 - Journal article

C2 - 31609582

VL - 11

SP - 41570−41579

JO - A C S Applied Materials and Interfaces

JF - A C S Applied Materials and Interfaces

SN - 1944-8244

IS - 44

ER -