The Power of the Crowd. What Could be Learned by Collective Pooling of all the World’s Perovskite Device Data, and How do We Get There?
T. Jesper Jacobsson a b, Eva Unger a c
a Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Germany, Berlin, Germany
b Uppsala University, Ångström Laboratory, Sweden, Lägerhyddsvägen, 1, Uppsala, Sweden
c Department of Chemistry & NanoLund, Lund University, Sweden, Sweden
Materials for Sustainable Development Conference (MATSUS)
Proceedings of nanoGe Fall Meeting19 (NFM19)
#PERInt19. Interplay of composition, structure and electronic properties in halide-perovskites
Berlin, Germany, 2019 November 3rd - 8th
Organizer: Pablo P. Boix
Oral, T. Jesper Jacobsson, presentation 177
DOI: https://doi.org/10.29363/nanoge.nfm.2019.177
Publication date: 18th July 2019

Much research related to perovskite solar cells follows a familiar pattern. A group of postdocs and PhD students enter the lab where they with skill and determination meticulous handcraft a staggering number of solar cells, where after they carefully measure the device characteristics of the cells. This process triggers the writing of papers in which insights are summarised, and where a subset of the generated data is used for plotting figures and filling tables. Over the last ten years, this has been repeated about 10000 times. Sadly, much of the data presented in figures are non-trivial to extract, and much of the raw data newer leaves the hard drives of the students doing the work, and when they move on, the data is many times forever lost in the growing heap of unconsidered data. We firmly believe that much could be gained if more of this data could be stored in one place where it is easily accessible for the research community. So is also an increasing number of funding agencies. Such a collection of data could lead to new insights that are hard to get when the data is scattered over thousands of articles, and it could thus be a way to accelerate the pace of development. In this project, we are working on creating a platform for what could be described as a Wikipedia of perovskite device data. We will in this presentation describe what we have created, what can be conclude from the data so far accumulated, as well as the potential benefits for the perovskite community and beyond if this approach to data sharing reach full penetration in the field.

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