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185 results for “perovskites”
Perovskite Solar Cells Ageing Dataset
<p>This dataset contains cleaned 2,245 ageing test traces (time vs. MPPT PCE/ maximum power point tracking power conversion efficiency) for perovskite solar cells with various device stacks and architectures in the pickle (.pkl) format.</p> <p>The dataset can be loaded with the following commands on Python.</p> <pre><code class="language-python">import pickle5 as pickle import pandas as pd import numpy as np with open('20230303_mySeriesDrop.pkl', "rb") as fh: mySeriesDrop = pickle.load(fh)</code></pre> <p>The following command can be used to call a specific row (row 0) within the dataset.</p> <pre><code class="language-python">mySeriesDrop[0]</code></pre> <p>The next steps to use the dataset is using scaling/ normalisation (for instance using sklearn.preprocessing.MaxAbsScaler) and smoothing (for instance using Savitzky-Golay filter).</p> <p>The code to run the complete analysis, including self-organising map clustering, can be accessed here: <a href="https://doi.org/10.5281/zenodo.8181602">https://doi.org/10.5281/zenodo.8181602</a>.</p>
Broadband Laser-Induced Luminescence Generated in the Visible and Near-Infrared Ranges from Nontransparent CsPbCl3:Yb3+ Perovskite Ceramics
<p>ABSTRACT</p> <p>All inorganic perovskites with the general formula ABX<sub>3</sub> (A = alkaline cation, B = lead ions, and X = halide anion) in the form of colloids have become very popular in recent years due to their extraordinary spectroscopic properties, which can be additionally modulated by changing their structural composition. Here, we report for the first time a novel study considering nontransparent CsPbCl<sub>3</sub>:10%Yb<sup>3+</sup> ceramics that exhibit broadband laser-induced emission (LIE) with warm color (CRI = 96) upon exposure to a high-power-density infrared beam. It was found that the analyzed phenomenon strongly depends on the excitation power density and the pressure around the sample. Moreover, threshold behavior was observed, characterized by a significant increase in luminescence intensity already from the excitation of 0.2 W. The investigated material exhibits extremely strong photoconductivity. During the spectroscopic measurements of LIE, it was found that the current value varies by more than 4 orders of magnitude. Because of the relatively low sample temperature during the experiment, a LIE generation mechanism based on the creation of ytterbium mixed valence ion pairs and intervalence charge transfer (IVCT) transitions was proposed.</p>
Data and code for "Revealing the free energy landscape of halide perovskites: Metastability and transition characters in CsPbBr3 and MAPbI3"
<p>This record contains a neuroevolution potential (NEP) model (<code>nep-MAPI-SCAN.txt</code> ) for MAPbI3 used in the linked publication. The model can be used in conjunction with the <a href="https://gpumd.org">GPUMD package</a>. The <a href="https://calorine.materialsmodeling.org">calorine package</a> provides a Python interface to GPUMD.<br> Several primitive structures in extended xyz format can be found in the <code>*.xyz</code> files. These structures have been relaxed using the NEP model included here. The <code>demo-for-using-structures-and-model.py</code> script illustrates how to access the structures and model.</p>
Performance analysis & optimization of inverted inorganic CsGeI3 perovskite cells with carbon/copper charge transport materials using SCAPS‑1D
Open the record for dataset details and reuse information.
Correlated nanoimaging of structure and dynamics of cation-polaron coupling in hybrid perovskites
Open the record for dataset details and reuse information.
Tuning CH3NH3Pb(I1-xBrx)3 Perovskite Oxygen Stability in Thin Films and Solar Cells
<p>The rapid development of organic-inorganic lead halide perovskites has resulted in high efficiency photovoltaic devices. However the susceptibility of these devices to degradation under environmental stress has so far hindered commercial development, requiring for example expensive device encapsulation. Herein, we have investigated the stability of CH3NH3Pb(I1-xBrx)3 [x = 0..1] thin film and solar cells under controlled humidity, light, and oxygen conditions. We show that higher bromide ratios increases tolerance to moisture, with x = 1 thin films being stable to 120 hr of moisture stress. Under light and dry air, partial bromide (x < 1) subsitution does not enhance film stability significantly, with the corresponding solar cells degrading within two hours. In contrast CH3NH3PbBr3 films show excellent stability, with device stability being limited by the organic interlayer. For these x = 1 films we show charge carriers are quenched in the presence of oxygen and form superoxide; however in contrast to perovskites containing iodide, this superoxide does not degrade the crystal. Our observations show that iodide limits the oxygen and light stability of CH3NH3Pb(I1-xBrx)3 perovskites, but that CH3NH3PbBr3 provides an opportunity to develop inherently stable high voltage photovoltaic devices and 4-terminal tandem solar cells.</p>
Ionic Influences on Recombination in Perovskite Solar Cells
<p>Data for our paper: "Ionic Influences on Recombination in Perovskite Solar Cells" <strong>DOI: </strong>10.1021/acsenergylett.7b00490</p>
Publication identifiers of the perovskite dataset and the QA code
<p>The dataset contains the identifiers for separate 194,322 publications used in the article 'Question Answering models for information extraction from perovskite materials science literature'. The publications are separated by the data provider. For articles scraped from Core API and arXiV API which did not contain DOI, the identifier is either arXiV API identifier or Core API identifier.</p> <p>The zipped folder "QA_for_MS-main.zip" contains the codes used in the article. They are also available in https://gitlab.com/mil-utu/QA_for_MS.</p>
Ultrafast Vibrational Control of Organohalide Perovskite Optoelectronic Devices Using Vibrationally Promoted Electronic Resonance
<p>2D PC/PL-VIPER Maps, and results of molecular dynamics simulations for the above titled paper</p>
Defect tolerance of lead-halide perovskite (100) surface relative to bulk: band bending, surface states, and characteristics of vacancies (dataset)
<p>This repository contains an input data set as well as the output data that were used in a study of surface and bulk defects in cubic CsPbI<sub>3</sub>. using a Vienna ab initio simulation package (VASP) and PyDEF 2 package for processing of defect calculations. More details about organization of the dataset can be found within REDME.txt files</p>
Triarylamine modulation for hybrid perovskite photovoltaics
<p>Structural, optoelectronic, photovoltaic, and supplementary characterization data for “Triarylamine modulation for hybrid perovskite photovoltaics”, DOI:10.1002/admi.202301053<br>Figure_2_XRD.opju: Data described in Figure 2 (XRD patterns) as Origin (.opju) software file.<br>Figure_2_XPS.opju: Data described in Figure 2 (XPS spectra) as Origin (.opju) software file.<br>Figure_2_UV-vis.opju: Data described in Figure 2 (UV-vis spectra) as Origin (.opju) software file.<br>Figure_2_Tauc_plot.opju: Data described in Figure 2 (Tauc plot) as Origin (.opju) software file.<br>Figure_3_PV.opju: Data described in Figure 3 (Photovoltaics metrics) as Origin (.opju) software file.<br>Figure_4_TRPL.opju: Data described in Figure 4 (TRPL) as Origin (.opju) software files.<br>Figure_4_PL_no_spiro.opju: Data described in Figure 4 (steady state PL) as Origin (.opju) software files<br>Figure_4_PL_with_spiro.opju: Data described in Figure 4 (steady state PL with spiro-OMeTAD) as Origin (.opju) software files<br>Figure_5_stability.opju: Data described in Figure 5 (operational stability) as Origin (.opju) software files.<br>Figures_SI.zip: Data described in the Supporting Information Figures S2 (FTIR spectra data as Origin (.opju) software file); Figures S5a (JV curve for champion devices as Origin (.opju) software file); Figures S5b (IPCE as Origin (.opju) software file); Figures S6 (Supplementary photovoltaic metrics as Origin (.opju) software file).<br><br></p>
Dataset for Bright Excitonic Fine Structure in Metal-Halide Perovskites: From Two-Dimensional to Bulk
<p>This is the dataset of Posmyk, Katarzyna, et al. "Bright Excitonic Fine Structure in Metal-Halide Perovskites: From Two-Dimensional to Bulk." Journal of the American Chemical Society (2024). It consists of multiple subfolders, in which polarization resolved optical spectra and high magnetic field optical spectra can be found. In each subfolder, one can find raw data for photoluminescence and reflectivity spectra.</p> <p>n1 indicates the thickness of the inorganic quantum well (in this case n=1).</p> <p>filename structure: <br>Spot6_A_pol_win527_1uW_number of aquisitions _ aquisition time _HW_X.csv</p> <p><br>A:photoluminescence (PL) or reflectance (R)<br>X: degree on the half-wave plate</p> <p>pol/nonpol - polarised/nonpolarised<br>Excitation power: x uW <br>Spoty6 - spot on the sample<br>Grating center: win527 - 527 nm</p>
Dataset for Exciton Fine Structure in 2D Perovskites: The Out‐of‐Plane Excitonic State
<p><span>This dataset includes raw photoluminescence and transmission spectra acquired at zero and high magnetic field (identified by the folder name). Samples of different origins have been identified and the folder name includes the institution where the sample was synthetized. In the filename, one can find the information concerning the excitation power used, the wavelength of the excitation laser, the acquisition time, the degree read out on the half-wavelength plate.</span></p> <p><span>PL _ 5K_0.5uW_511.5nm_spot8 _aquisition time _ number of aquisitions _ X.csv</span></p> <p><span> </span></p> <p><span>R _5K_ 1uW_511.5nm _ aquisition time _ number of aquisitions _spot8 _ X.csv</span></p> <p><span> </span></p> <p><span>X: degree on the half-wave plate</span></p> <p><span> </span></p> <p><span>Temperature:5K</span></p> <p><span>Excitation power: x uW </span></p> <p><span>Spot y - spot on a sample</span></p> <p><span>Grating center: zzz nm</span></p>
Dataset for "Speciation of Lanthanide Metal Ion Dopants in Microcrystalline All-Inorganic Halide Perovskite CsPbCl3"
<p>Raw solid-state NMR and XRD data for "Speciation of Lanthanide Metal Ion Dopants in Microcrystalline All-Inorganic Halide Perovskite CsPbCl3"</p>
Accelerated Perovskite Solar Cells Ageing Dataset
<p>The dataset contains accelerated ageing test traces (time vs. MPPT PCE/ maximum power point tracking power conversion efficiency) for perovskite solar cells with SAM (self-assembled monolayer)-based and NiOx-based hole transport layers at various temperatures in .csv format.</p> <p>The next step to process and analyze the data, can be accessed here: https://github.com/noortitan/AcceleratedCyclePSCs/.</p>
Environmental impacts and economic costs of perovskite light-emitting diodes
<p>Environmental impacts and economic costs of perovskite light-emitting diodes (PeLEDs), which are based on the life cycle assessments (LCA) and techno-economic assessments (TEA). They are also the dataset for the manuscript entitled "Towards sustainable perovskite light-emitting diodes".</p>
data and codes for paper "Deriving mobility-lifetime products in halide perovskite films from spectrally- and time-resolved photoluminescence"
<p>These are the data and Matlab codes used in the paper "Deriving mobility-lifetime products in halide perovskite films from spectrally- and time-resolved photoluminescence".</p>
DFT Calculation Data for "Stabilized tilted-octahedra halide perovskites inhibit local formation of performance-limiting phases"
<p>Initial and optimized structures that are used for DFT simulations associated with Fig 2A-G in <em>Science</em> <strong>374</strong>, 1598 (2021) (DOI: 10.1126/science.abl4890)</p>
The Perovskite Database (Archive)
This dataset is a CSV snapshot of The Perovskite Database available at www.perovskitedatabase.com.
Supporting molecular simulations data for "Pseudo-halide anion engineering for α-FAPbI3 perovskite solar cells"
<p>Supporting molecular simulations data for "Pseudo-halide anion engineering for α-FAPbI3 perovskite solar cells"</p>
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.