Fig. 3 Depth-resolved structural characterization of perovskite nanocrystals in npSi films. Depth-resolved structural characterization of perovskite nanocrystals.

Slides:

Advertisements

Similar presentations

Fig. 2 2D-IR spectroscopy on liquid ZnPa under dry conditions.

Advertisements

Fig. 1 High-resolution printing of liquid metals.

Fig. 2 Characterization of fs-laser–induced degradation.

Fig. 3 Projected gains in MCP.

Fig. 1 Pump-probe signatures of vermilion (red HgS), black HgS, and metallic Hg. Pump-probe signatures of vermilion (red HgS), black HgS, and metallic.

Fig. 3 Near-field maps of a multiply cracked α-(BEDT-TTF)2I3 crystal.

Fig. 2 Zeeman splitting of the plateau and associated Kondo feature.

Fig. 3 Electron PSD in various regions.

Fig. 4 Resynthesized complex boronic acid derivatives based on different scaffolds on a millimole scale and corresponding yields. Resynthesized complex.

Fig. 6 Comparison of properties of water models.

Fig. 3 Scan rate effects on the layer edge current.

Fig. 1 Product lifetime distributions for the eight industrial use sectors plotted as log-normal probability distribution functions (PDF). Product lifetime.

Fig. 2 Plasma diagnostics with DEM analysis.

Fig. 1 A monolayer ReSe2 on a back-gated G/h-BN device.

Electrochemical characterization of pV4D4-coated silicon electrodes

Electronic structure of the oligomer (n = 8) at the UB3LYP/6-31G

Fig. 4 Resistance oscillations in Nc-G film.

Fig. 2 EUV TG signal. EUV TG signal. Black lines in (A), (B), and (C) are the EUV TG signals from Si3N4 membranes at LTG = 110, 85, and 28 nm, respectively,

Fig. 4 EUV TG signal from Si.

Fig. 3 Load dependence of friction force and corresponding COF.

Fig. 2 14C-CH4 data from each station and Keeling plot analysis.

Fig. 3 GIWAXS pattern of perovskite films with varied ligands.

Fig. 3 Collective modes of charge order in LBCO propagate diffusively.

Fig. 1 Cross-sectional images of He-implanted V/Cu/V samples.

Fig. 4 Evolution of fraction of sickled RBCs under hypoxia.

Fig. 4 Demonstration of dynamic scale invariance at long times.

Fig. 3 Characterization of the current-induced effective fields.

Fig. 2 Results of the learning and testing phases.

Fig. 3 Production of protein and Fe(II) at the end of growth correlated with increasing concentrations of ferrihydrite in the media that contained 0.2.

Fig. 4 Generation of liquid products on metal-decorated Ni(TPA/TEG) composites. Generation of liquid products on metal-decorated Ni(TPA/TEG) composites.

Fig. 4 SPICE simulation of stochasticity.

Fig. 2 NH3, NOx, SO2, and NMVOC emission changes triggered by the JJJ clean air policy. NH3, NOx, SO2, and NMVOC emission changes triggered by the JJJ.

Fig. 1 Schematic view and characterizations of FGT/Pt bilayer.

Fig. 2 Asymmetric MR of LMO within the ac plane.

Fig. 4 Relationships between light and economic parameters.

Fig. 5 Comparison of the liquid products generated from photocatalytic CO2 reduction reactions (CO2RR) and CO reduction reactions (CORR) on two catalysts.

Fig. 1 Experimental strategy and elemental and morphological analysis of 3D/2D perovskite bilayer. Experimental strategy and elemental and morphological.

Fig. 5 CLSM of samples with a 2.5-μm mesoporous Al2O3 layer.

Fig. 4 CO2 emission changes triggered by the JJJ clean air policy.

Fig. 4 Perovskite-infused nanoporous thin films for LEDs.

Structure of the laser-chemical tailored spongy Ni(TPA/TEG) catalyst

Multiplexed four- and eight-channel devices for rapid processing

Fig. 3 Measured thermoelectric characteristics.

Long-range structural order control of SS-annealed cylinder patterns

Fig. 2 Comparison of the observed DRs and the estimates by the VR model and FL. Comparison of the observed DRs and the estimates by the VR model and FL.

Fig. 4 The relationship between the total mean absolute momentum disturbance 〈∣p∣〉zB (in units of ℏ/D) and fringe visibility V. The relationship between.

Fig. 3 Comparisons of NDVI trends over the globally vegetated areas from 1982 to Comparisons of NDVI trends over the globally vegetated areas from.

Fig. 2 Characterization of metal-chalcogenide thin films.

Fig. 4 Spatial mapping of the distribution and intensity of industrial fishing catch. Spatial mapping of the distribution and intensity of industrial fishing.

Fig. 2 Structural and spectroscopic characterization of 3D/2D perovskite bilayer. Structural and spectroscopic characterization of 3D/2D perovskite bilayer.

Fig. 4 Single-particle contact angle measurements.

Fig. 6 MD simulations of assembled binary supraballs.

Fig. 3 TEM evidence of carbon doping in WS2.

Fig. 5 Density plots showing the relationship between growth responses to extreme events and site-level mean precipitation from all sites (N = 1314). Density.

Fig. 3 Supraballs and films assembled from binary 219/217nm SPs/SMPs.

Fig. 2 Supraballs and films from binary SPs.

Fig. 4 Behavior of resistance peak near density nm = 5.

Fig. 1 Structure and basic properties of EuTiO3 (ETO) films.

Fig. 2 Comparison between the different reflective metasurface proposals when θi = 0° and θr = 70°. Comparison between the different reflective metasurface.

The combined signal spectra of PSD for protons and helium nuclei

Fig. 1 Design principle and SEM characterization of super-origami DNA nanostructures with n-tuples. Design principle and SEM characterization of super-origami.

Fig. 3 Characterization of the luminescence temporal time traces.

Fig. 2 Spatial distribution of five city groups.

Fig. 1 STEM data: Original and processed by neural networks.

Fig. 3 Optimization of the antidot GNR structure.

Fig. 4 Effects of individual picosecond and microsecond pulses.

Fig. 1 A high degree of epitope sharing and T cell promiscuity is observed between DQ8cis and DQ8trans for influenza and islet antigens. A high degree.

Fig. 2 Imaging blood vessel before and after closure.

Fig. 3 Spatial distribution of the shoot density (high densities are represented in dark green and low ones in bright yellow) in a simulation of a P. oceanica.

Fig. 5 Modeling of the ASE threshold using the kinetic equations and experimental parameter inputs. Modeling of the ASE threshold using the kinetic equations.

Presentation transcript:

Fig. 3 Depth-resolved structural characterization of perovskite nanocrystals in npSi films. Depth-resolved structural characterization of perovskite nanocrystals in npSi films. (A) HAADF-STEM image of an exfoliated npSi/ncMAPbI3 flake. The bright regions correspond to perovskite (due to z-contrast), as confirmed by EDX analysis. The Pb signal is plotted as orange overlay. (B) EDX line scan (Pb L line) of a single crystallite from the thinnest part of the flake [indicated as red line in (A)]. We find a crystallite size of 4 nm for 30–mA cm−2 npSi. (C) Background corrected, azimuthally averaged x-ray diffraction profiles of MAPbI3 in 30–mA cm−2 npSi (violet line), in 25–mA cm−2 npSi (blue line), and in 15–mA cm−2 npSi (green line) as a function of the scattering vector q. The curves are normalized and vertically shifted for clarity. The log-scale highlights the increasing broadening of all MAPbI3 peaks with decreasing current density due to crystallite size reduction, suggesting increasingly strong confinement. The peaks are indexed to a tetragonal structure with the lattice constants a = b = 8.90(3) Å and c = 12.71(5) Å. (D to F) Crystallite size and diffracted power of the MAPbI3 signal as function of depth for (D) 30–mA cm−2 npSi/ncMAPbI3, (E) 25–mA cm−2 npSi/ncMAPbI3, and (F) 15–mA cm−2 npSi/ncMAPbI3. Red circles: Depth-dependent crystallite size. Black line: Integrated intensity of the perovskite diffraction signal as a measure for the amount of perovskite at a specific depth. Dashed red line: Weighted average of the crystallite size. Error bars correspond to the 1-σ values of the uncertainty resulting from data analysis and the initial resolution of the experiment. (G) PL peak emission energy against the average size of crystallites formed in three npSi layers prepared with indicated anodization current density. Error bars correspond to the SD of the crystallite size. Stepan Demchyshyn et al. Sci Adv 2017;3:e1700738 Copyright © 2017 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).