Nanostructured WO₃ photoanodes for efficient water splitting via anodisation in citric acid

We report the production of nanostructured WO3 photoanodes for solar water splitting produced via anodisation using for the first time citric acid, a safer and more environmentally friendly alternative to fluoride-based electrolytes.</p

Investigation of solution-based synthesis of non-toxic perovskite materials using Mg, Ca, Mn, Fe, Cu, and Zn as the B-site cation for photovoltaic applications

High-efficiency perovskite solar cells are reliant on lead-based materials, which causes toxicity issues for large-scale implementation. Current alternatives can contain similarly environmentally dangerous chemicals such as tin halide compounds. Computational studies have suggested a large array of different potential B-site metal cations that could produce suitable perovskite materials. In this work, simple, solution synthesis of 24 candidate materials is attempted with a focus on the environmental safety of the starting compounds. Of these 24 materials, 10 formed a new material from XRD characterisation, and 1 of the resulting films produces a material with an observable band-gap in UV/vis. This material, a combination of potassium bromide and copper bromide, failed to produce a solar cell of any notable efficiency. This work demonstrates that completely environmentally benign perovskite materials may require more energy-intensive synthesis such as solid-state methods, removing the benefits of simple, solution processing evident in lead-halide perovskite solar cells.</p

Supplementary information files for Investigation of solution-based synthesis of non-toxic perovskite materials using Mg, Ca, Mn, Fe, Cu, and Zn as the B-site cation for photovoltaic applications

Supplementary files for article Investigation of solution-based synthesis of non-toxic perovskite materials using Mg, Ca, Mn, Fe, Cu, and Zn as the B-site cation for photovoltaic applications  High-efficiency perovskite solar cells are reliant on lead-based materials, which causes toxicity issues for large-scale implementation. Current alternatives can contain similarly environmentally dangerous chemicals such as tin halide compounds. Computational studies have suggested a large array of different potential B-site metal cations that could produce suitable perovskite materials. In this work, simple, solution synthesis of 24 candidate materials is attempted with a focus on the environmental safety of the starting compounds. Of these 24 materials, 10 formed a new material from XRD characterisation, and 1 of the resulting films produces a material with an observable band-gap in UV/vis. This material, a combination of potassium bromide and copper bromide, failed to produce a solar cell of any notable efficiency. This work demonstrates that completely environmentally benign perovskite materials may require more energy-intensive synthesis such as solid-state methods, removing the benefits of simple, solution processing evident in lead-halide perovskite solar cells. </p

Raw Data for Azetidinium Lead Iodide for Perovskite Solar Cells

Here we prepare azetidinium lead iodide for the first time. Azetidinium lead iodide is a stable, bright orange material which does not appear to form a 3D or a 2D perovskite. It was successfully used as the absorber layer in solar cells. We also show that it is possible to make mixed cation devices by adding the azetidinium cation to methylammonium lead iodide. Mixed azetidinium-methylammonium cells show improved performance and reduced hysteresis compared to methylammonium lead iodide cells. This dataset includes all structural and electrochemical raw data, including thin film XRD, UV/Vis, Cyclic Voltammetry and Mott Schottky measurements. It also includes the main parameters (Efficiency, Open Circuit Voltage, Short Circuit Current Density, Fill Factor) for all those made. The raw data includes JV curve data of the best pixel from each set, a stabilised efficiency measurement for the MAPI, A1 and A2 cell and an EQE measurement of the best overall pixel.For full details of how the data was collected, please see the corresponding paper, available from https://doi.org/10.1039/C7TA07545F

Dataset for "Partial Cation Substitution Reduces Iodide Ion Transport in Lead Iodide Perovskite Solar Cells"

The dataset includes UV-Vis, XRD, impedance and JV data for inverted NiO perovskite solar cells where the MA+ cation has been partially substituted

Dataset for "Partial Cation Substitution Reduces Iodide Ion Transport in Lead Iodide Perovskite Solar Cells"

The dataset includes UV-Vis, XRD, impedance and JV data for inverted NiO perovskite solar cells where the MA+ cation has been partially substituted

Raw Data for Azetidinium Lead Iodide for Perovskite Solar Cells

Here we prepare azetidinium lead iodide for the first time. Azetidinium lead iodide is a stable, bright orange material which does not appear to form a 3D or a 2D perovskite. It was successfully used as the absorber layer in solar cells. We also show that it is possible to make mixed cation devices by adding the azetidinium cation to methylammonium lead iodide. Mixed azetidinium-methylammonium cells show improved performance and reduced hysteresis compared to methylammonium lead iodide cells. This dataset includes all structural and electrochemical raw data, including thin film XRD, UV/Vis, Cyclic Voltammetry and Mott Schottky measurements. It also includes the main parameters (Efficiency, Open Circuit Voltage, Short Circuit Current Density, Fill Factor) for all those made. The raw data includes JV curve data of the best pixel from each set, a stabilised efficiency measurement for the MAPI, A1 and A2 cell and an EQE measurement of the best overall pixel

Raw Data for Azetidinium Lead Iodide for Perovskite Solar Cells

Here we prepare azetidinium lead iodide for the first time. Azetidinium lead iodide is a stable, bright orange material which does not appear to form a 3D or a 2D perovskite. It was successfully used as the absorber layer in solar cells. We also show that it is possible to make mixed cation devices by adding the azetidinium cation to methylammonium lead iodide. Mixed azetidinium-methylammonium cells show improved performance and reduced hysteresis compared to methylammonium lead iodide cells. This dataset includes all structural and electrochemical raw data, including thin film XRD, UV/Vis, Cyclic Voltammetry and Mott Schottky measurements. It also includes the main parameters (Efficiency, Open Circuit Voltage, Short Circuit Current Density, Fill Factor) for all those made. The raw data includes JV curve data of the best pixel from each set, a stabilised efficiency measurement for the MAPI, A1 and A2 cell and an EQE measurement of the best overall pixel