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Upcoming Events

Event Date and Location Summary
Joshua Goldberger, The Ohio State University Mon. September 9th, 2019
12:45 pm-1:45 pm
at Rockefeller 221 (Les Foldy Room)

 goniopolar materials

host: Walter Lambrecht

Continue reading… Joshua Goldberger, The Ohio State University


External website: https://chemistry.osu.edu/people/goldberger.4
Jixin Chen, Ohio University Mon. September 16th, 2019
12:45 pm-1:45 pm
at Rockefeller 221 (Les Foldy Room)

Photophysics as a Tool to Measure the Surface-State of Perovskite Nanoparticles

Jixin Chen, Department of Physics, Ohio University

The photoluminescence (PL) of organolead halide perovskites (OHPs) is sensitive to OHPs’ surface conditions and an effective way to report surface states. OHP is a hot semiconducting material that has a large potential in solar cells and LEDs. Photophysics describes the light-matter interactions in the materials using several phenomena such as absorption, exciton relaxation, emission quantum yield, photoblinking, and photodarkening/photobleaching. In this seminar, Dr. Chen will focus his talk on the photoblinking and photodarkening of perovskite nanoparticles.

Continue reading… Jixin Chen, Ohio University


External website: http://www.phy.ohio.edu/~jchen/People/JixinChen.html
Antia Botana, Arizona State University, Mimicking cuprates with low-valence layered nickelates. Mon. September 23rd, 2019
12:45 pm-1:45 pm
at Rockefeller 221 (Les Foldy Room)

Mimicking cuprates with low-valence layered nickelates.

Antia Botana, Dept. of Physics, Arizona State University, Tempe, AZ

The physics behind high-temperature superconducting cuprates remains a defining problem in Condensed Matter Physics. One way of addressing this problem has been to search for alternative transition metal oxides with comparable structures and 3d electron count, proxies for cuprate physics. By means of electronic structure calculations, we propose low-valence layered nickelates as one of the closest analogs to cuprates yet reported. These materials possess a combination of traits that are widely considered as crucial ingredients for high-temperature superconductivity in cuprates: a square-planar nature,

Continue reading… Antia Botana, Arizona State University, Mimicking cuprates with low-valence layered nickelates.


External website: https://physics.asu.edu/content/antia-sanchez-botana

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