Lessons learned from device modeling of organic & perovskite solar cells

University of Groningen

Lessons learned from device modeling of organic & perovskite solar cells

Le Corre, Vincent

DOI:

10.33612/diss.160806040

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Publication date:

2021

Link to publication in University of Groningen/UMCG research database

Citation for published version (APA):

Le Corre, V. (2021). Lessons learned from device modeling of organic & perovskite solar cells. University of

Groningen. https://doi.org/10.33612/diss.160806040

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Propositions

accompanying the dissertation

L

&

SOL AR CELLS by

Vincent M. L

C

1. The exciton diffusion length in non-fullerene acceptors is strongly related to the stiffness of the conjugated core. (Chapter 2)

2. The characterization of the mobility using steady-state techniques is sufficient to discuss the transport and extraction in organic solar cells under operating condi-tions. (Chapter 3)

3. The classical analysis of SCLC measurements needs to be corrected to account for the presence of moving ions in perovskites. (Chapter 4)

4. The charge transport layers in perovskite solar cells need to be optimized carefully as they can strongly limit the fill factor. (Chapter 5)

5. The ideality facotr of perovskite solar cells does not only depend on the domi-nant recombination process making it a poor predictor of the main loss channel. (Chapter 6)

6. The use of complex models, that need to be solved iteratively, is feared and down-played by part of the scientific community while they are willing to use simplistic equations to explain their measurements, even though these equations are often special cases or simplification of said models.

7. The rise of automated experimentation will allow scientists to perform experi-ments at an unprecedented scale and reduce the burden of performing repetitive tasks off the backs of Ph.D. students.

8. While models are not absolute they are definitely useful.

9. Scientific publishing is broken in many ways, it exploits freely scientists without compensation, it focuses on the numbers reported rather than on the actual phys-ical understanding and the reproducibility of the results sometimes questionable. 10. A large portion of the published papers in solar cell research could be replaced by

data reports.