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PRODID:-//IXAS: The International X-ray Absorption Society - ECPv6.15.15//NONSGML v1.0//EN
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X-WR-CALDESC:Events for IXAS: The International X-ray Absorption Society
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TZOFFSETFROM:+0000
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DTSTART:20190101T000000
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BEGIN:VEVENT
DTSTART;VALUE=DATE:20200622
DTEND;VALUE=DATE:20200623
DTSTAMP:20260718T122402
CREATED:20200522T143357Z
LAST-MODIFIED:20200714T011226Z
UID:417-1592784000-1592870399@xrayabsorption.org
SUMMARY:Lijia Liu:	XEOL studies of Light-Emitting Materials
DESCRIPTION:X-ray excited optical luminescence (XEOL) is a photon-in-photon-out process which monitors the visible luminescence emitted from materials upon X-ray excitation. Unlike using low energy excitation source such as UV\, during X-ray excitation\, core electrons are excited and the production of luminescence is a much more complicated process. Because of this\, X-ray excited luminescence can be correlated with the decay process of a specific core electron. In this talk\, I will introduce the fundamental process of XEOL and the unique information it provides\, when combining with X-ray absorption near-edge structure (XANES)\, in revealing the origin of the luminescence. Two materials systems\, nanostructured TiO2 and metal-doped lead halide perovskite\, will be used as examples to demonstrate the XEOL-XANES analysis technique.  \nReferences: \n\nLi et al\, https://doi.org/10.1021/acs.chemmater.5b00363\nMa et al\, https://doi.org/10.1039/c9nr00143c\n\n 
URL:https://xrayabsorption.org/events/journalclub-lijia-liu/
CATEGORIES:XAFS Journal Club
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