2D Mapping of Bonding Changes at Peroskite Oxide Interfaces and Round Defects

Kourkoutis, Lena F.; Lee, JH; Song, J. H.; Hwang, H. Y.; Schlom, D. G.; Muller, DA

doi:10.1017/s1431927610060460

Cited by 4 publications

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“…Though XRF provides information analogous to that of energy dispersive X-ray spectroscopy (EDX), a widely available electron microscopy-based technique for compositional analysis, XRF offers several distinct advantages over EDX. Deceleration of electrons within a sample during EDX measurements generates white bremsstrahlung background radiation, limiting sensitivity to 0.1% [87] -a limitation not present in XRF, which uses photons as an excitation source, and accordingly has about 1000x the sensitivity of EDX. This boost in sensitivity not only reduces measurement time and energy dose imparted to a sample, but actually allows lower-energy emission of weaker L-or M-lines that would typically be masked by EDX background to be used for XRF analysis.…”

Section: Advantages Of Xrfmentioning

confidence: 99%

X‐Ray Microscopy of Halide Perovskites: Techniques, Applications, and Prospects

Kodur

Kumar

Luo

et al. 2020

Advanced Energy Materials

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X-ray microscopy can provide unique chemical, electronic, and structural insights into perovskite materials and devices leveraging bright, tunable synchrotron X-ray sources. Over the last decade, fundamental understanding of halide perovskites and their impressive performance in optoelectronic devices has been furthered by rigorous research regarding their structural and chemical properties. Herein, studies of perovskites are reviewed that have used X-ray imaging, spectroscopy, and scattering microscopies that have proven valuable tools toward understanding the role of defects, impurities, and processing on perovskite material properties and device performance. Together these microscopic investigations have augmented our understanding of the This article is protected by copyright. All rights reserved. 2 internal workings of perovskites and help steer the perovskite community toward promising directions. In many ways, X-ray microscopy of perovskites is still in its infancy, which leaves many exciting paths unexplored including new super-resolution, multimodal, in situ, and operando experiments. To explore possibilities, pioneering X-ray microscopy along these lines is briefly highlighted from other semiconductor systems including silicon, CdTe, GaAs, CuIn x Ga 1-x Se 2 , and organic photovoltaics. An overview is provided on the progress made in utilizing X-ray microscopy for perovskites and present opportunities and challenges for future work.

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Section: Advantages Of Xrfmentioning

confidence: 99%

X‐Ray Microscopy of Halide Perovskites: Techniques, Applications, and Prospects

Kodur

Kumar

Luo

et al. 2020

Advanced Energy Materials

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Influence of Heat Treatment on Structure and Corrosion Resistance of 8090 Aluminium Alloy for Ethanol Fuel Tank Application

Astaghfari

Soegijono²

2019

IOP Conf. Ser.: Mater. Sci. Eng.

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Investigation was carried out to understand the influence of heat treatment on structure and corrosion resistance of 8090 aluminium alloy in ethanol solution for ethanol fuel tank application. Heat treatments were subjected to solutionizing at temperature 525ºC for 4 hours to infiltrate the aluminium crystal by copper atoms and aging at temperature 190ºC with different time to bring copper and lithium atoms out of aluminium crystal during aging process. X-ray diffraction was performed to investigate the phase of each sample with different aging time. Electrochemical experiments were conducted to investigate the corrosion resistance in 3, 5% and 7% NaCl solution and 70% and 96% of ethanol solution. The results show different corrosion behaviour of this material. Heat treatment on this material shows significant different results.

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In Memory of Lena Kourkoutis and Her Unfinished Work

Muller

2024

Microscopy and Microanalysis

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2D Mapping of Bonding Changes at Peroskite Oxide Interfaces and Round Defects

Abstract: Extended abstract of a paper presented at Microscopy and Microanalysis 2010 in Portland, Oregon, USA, August 1 – August 5, 2010.

Cited by 4 publications

References 0 publications

X‐Ray Microscopy of Halide Perovskites: Techniques, Applications, and Prospects

X‐Ray Microscopy of Halide Perovskites: Techniques, Applications, and Prospects

Influence of Heat Treatment on Structure and Corrosion Resistance of 8090 Aluminium Alloy for Ethanol Fuel Tank Application

In Memory of Lena Kourkoutis and Her Unfinished Work

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