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Biomimetic Approach to Inhibition of Photooxidation in Organic Solar Cells Using Beta-Carotene as an Additive
Biomimetic Approach to Inhibition of Photooxidation in Organic Solar Cells Using Beta-Carotene as an Additive
- Source :
- Turkovic, V, Prete, M, Bregnhøj, M, Inasaridze, L, Volyniuk, D, Obrezkov, F, Grazulevicius, J, Engmann, S, Rubahn, H-G, Troshin, P, Ogilby, P R & Madsen, M 2019, ' Biomimetic Approach to Inhibition of Photooxidation in Organic Solar Cells Using Beta-Carotene as an Additive ', ACS Applied Materials and Interfaces, vol. 11, no. 44, pp. 41570-41579 . https://doi.org/10.1021/acsami.9b13085, Turkovic, V, Prete, M, Bregnhøj, M, Inasaridze, L, Volyniuk, D, Obrezkov, F A, Gražulevičius, J V, Engmann, S, Rubahn, H-G, Troshin, P A, Ogilby, P R & 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, vol. 11, no. 44, pp. 41570−41579 . https://doi.org/10.1021/acsami.9b13085, ACS Appl Mater Interfaces
- Publication Year :
- 2019
-
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.
- Subjects :
- Antioxidant
Materials science
Organic solar cell
Singlet oxygen
medicine.medical_treatment
organic solar cells
02 engineering and technology
Limiting
stability
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
Article
singlet oxygen
burn-in
0104 chemical sciences
chemistry.chemical_compound
chemistry
Chemical engineering
beta-Carotene
medicine
General Materials Science
0210 nano-technology
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Turkovic, V, Prete, M, Bregnhøj, M, Inasaridze, L, Volyniuk, D, Obrezkov, F, Grazulevicius, J, Engmann, S, Rubahn, H-G, Troshin, P, Ogilby, P R & Madsen, M 2019, ' Biomimetic Approach to Inhibition of Photooxidation in Organic Solar Cells Using Beta-Carotene as an Additive ', ACS Applied Materials and Interfaces, vol. 11, no. 44, pp. 41570-41579 . https://doi.org/10.1021/acsami.9b13085, Turkovic, V, Prete, M, Bregnhøj, M, Inasaridze, L, Volyniuk, D, Obrezkov, F A, Gražulevičius, J V, Engmann, S, Rubahn, H-G, Troshin, P A, Ogilby, P R & 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, vol. 11, no. 44, pp. 41570−41579 . https://doi.org/10.1021/acsami.9b13085, ACS Appl Mater Interfaces
- Accession number :
- edsair.doi.dedup.....a5a3d6ce1f82b9ff62c006bad285b5a0
- Full Text :
- https://doi.org/10.1021/acsami.9b13085