Efficient Polymer Solar Cells Based on Non-fullerene Acceptors with Potential Device Lifetime Approaching 10 Years

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autorinnen und Autoren: Du X, Heumüller T, Gruber W, Classen A, Unruh T, Li N, Brabec C
Zeitschrift: Joule
Verlag: Cell Press
Jahr der Veröffentlichung: 2019
Band: 3
Heftnummer: 1
Seitenbereich: 215-226
ISSN: 2542-4351
Sprache: Englisch


Abstract

Organic solar cells (OSCs) based on non-fullerene acceptors (NFAs) have developed very fast in recent years.
A proper balance among power conversion efficiency (PCE), stability,
and production cost needs further elaboration. Here we investigate the
industrial viability of highly efficient OSCs based on several representative NFAs. The most stable OSCs exhibit PCE of ∼8% along with extrapolated T 80 lifetime
(80% of the initial PCE) of over 11,000 hr under equivalent 1 sun
illumination, which would lead to a very impressive operational lifetime approaching 10 years.
Photo-stability is strongly dependent on the end-group and side-chain
engineering of the NFAs. Breaking of conjugation during photo-aging
leads to increased energetic traps. Fluorination of the end-group
stabilizes molecules against light soaking, while adding methyl groups
shows an opposite trend. Side-chain modification can significantly
influence the morphological stability. Reducing synthetic complexity of
this class of NFAs will ultimately push the organic photovoltaics
technology into real-life applications. © 2018 Elsevier Inc.


We investigate the industrial viability of highly efficient organic solar cells (OSCs) based on several representative non-fullerene acceptors
(NFAs) by taking into consideration the three essential parameters:
power conversion efficiency, photo-stability, and materials cost.
End-group and side-chain modifications of NFAs strongly influence
long-term photo-stability. Promising extrapolated operational lifetime approaching 10 years
has been demonstrated with the most stable system. Industrial figure of
merit (i-FoM) analysis highlights the importance of lowering the
synthetic complexity of the NFAs for commercialization of this
technology. © 2018 Elsevier Inc.


Organic solar cells with non-fullerene acceptors (NFAs) have developed rapidly in recent years.
Breakthroughs in power conversion efficiency (PCE) have significantly
raised the confidence in the community for commercialization of this
technology. In the phase of developing new materials via molecular
engineering, more attention should be paid on industrial figure of merit
(i-FoM), which considers the balance of PCE, stability, and production
cost. Here we investigate industrial viability of highly efficient organic solar cells based
on several representative NFAs. Molecular engineering on both
end-groups and side chains significantly influences the long-term
stability of organic solar cells
by altering the intrinsic chemical stability of the molecules under
light soaking as well as morphological stability. Promising lifetime approaching 10 years
is demonstrated in stable candidates. Reducing synthetic complexity is
highlighted in order to push this technology into real-life application


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Brabec, Christoph Prof. Dr.
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)
Classen, Andrej
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)
Du, Xiaoyan
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)
Heumüller, Thomas Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)
Li, Ning Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)
Unruh, Tobias Prof. Dr.
Professur für Nanomaterialcharakterisierung (Streumethoden)


Zusätzliche Organisationseinheit(en)
Interdisziplinäres Zentrum, Center for Nanoanalysis and Electron Microscopy (CENEM)


Forschungsbereiche

Neue Materialien und Prozesse
Forschungsschwerpunkt einer Fakultät: Technische Fakultät


Zitierweisen

APA:
Du, X., Heumüller, T., Gruber, W., Classen, A., Unruh, T., Li, N., & Brabec, C. (2019). Efficient Polymer Solar Cells Based on Non-fullerene Acceptors with Potential Device Lifetime Approaching 10 Years. Joule, 3(1), 215-226. https://dx.doi.org/10.1016/j.joule.2018.09.001

MLA:
Du, Xiaoyan, et al. "Efficient Polymer Solar Cells Based on Non-fullerene Acceptors with Potential Device Lifetime Approaching 10 Years." Joule 3.1 (2019): 215-226.

BibTeX: 

Zuletzt aktualisiert 2019-23-07 um 09:48