Large datasets are now ubiquitous as technology enables higher-throughput experiments, but rarely can a research field truly benefit from the research data generated due to inconsistent formatting, undocumented storage or improper dissemination. Here we extract all the meaningful device data from peer-reviewed papers on metal-halide perovskite solar cells published so far and make them available in a database. We collect data from over 42,400 photovoltaic devices with up to 100 parameters per device. We then develop open-source and accessible procedures to analyse the data, providing examples of insights that can be gleaned from the analysis of a large dataset. The database, graphics and analysis tools are made available to the community and will continue to evolve as an open-source initiative. This approach of extensively capturing the progress of an entire field, including sorting, interactive exploration and graphical representation of the data, will be applicable to many fields in materials science, engineering and biosciences.

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A newly synthesized Nickel (II) tyrosine complex was screened as potential antimicrobial agent against a number of medically important bacteria (Bacillus subtilis, Streptococcus β-haemolytica, Escherichia coli, Shigella dysenterae) and fungi (Aspergillus fumigatus, Candida albicans, Aspergillus niger, Aspergillus flavus, Penicillium sp.) strains. were used for antifungal activity. The antimicrobial activity was evaluated using the Agar Disc method. Moreover, the minimum inhibitory concentration of the complexes was determined against the same pathogenic bacteria and the values were found between 4~64 µg ml-1. Brine shrimp bioassay was carried out for cytotoxicity measurements of the complexes. The LC50 values were calculated after probit transformation of the resulting mortality data and found to be 6 µg ml-1.

Organic solar cells (OSCs) offer lightweight, flexibility, semi-transparency, and low manufacturing costs all in one PV technology. [1] Over the past few years, the power conversion efficiency (PCE) of OSCs has increased significantly, recently exceeding 19%, bringing this technology closer to wide-scale commercial applications. [2] The improvement in PCE is driven by the continuous development of novel materials, particularly novel non-fullerene acceptors (NFAs). [3] Commonly, highly efficient OSC devices are prepared by blending donor and acceptor materials in solution, creating a so-called bulk-heterojunction (BHJ) photoactive layer upon deposition by, for instance, spin-coating, blading, or ink-jetting. [4] The BHJ exhibits a large donor/acceptor interface area, which ensures efficient exciton quenching and charge separation as well as an interpenetrating donor-acceptor (D-A) 3D network facilitating charge carrier percolation. [5] Large D-A domain sizes of 20-50 nm are often observed in high-efficiency NFA-based BHJ cells, [6] consistent with the reported long exciton diffusion length of NFAs. [7] However, obtaining the optimal nanoscale morphology of the BHJ photoactive layer consisting of interpenetrating bicontinuous D-A networks is challenging since it is very sensitive to material properties and processing conditions. [8] Nonoptimal D-A morphologies limit charge separation and transport and thus the device performance. [9] Alternatively, bilayer structures devices are prepared by sequential deposition of the individual donor and acceptor materials. [10] In fact, layer-by-layer (LbL) coated OSCs have recently gained attention due to improved charge transport and extraction, reduced dependence of their performance on the D/A ratio and solvent used in the processing step, and often better thermal stability. [10,11] The OSC solutions and the LbL processing conditions are selected such that a pseudo-bilayer configuration is obtained, where in the center of the photoactive layer an intermixed D/A layer is created, sandwiched between the neat D and A layers. [11c,11f] Using this approach, Sun et al. achieved an impressive performance of LbL-coated OSCs based on the high-efficiency PM6:Y6 system with a PCE of %16.4%, even higher than obtained for BHJ devices (15.4%). [11a] The versatility