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[Fizinfo] Szemináriumok - Seminars: Anton Pershin

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  • From: Szeminárium koordinátor <sem-admin AT>
  • To: SZFI Szeminárium <seminar AT>,Fizinfo <fizinfo AT>
  • Cc: Fizinfo <fizinfo AT>
  • Subject: [Fizinfo] Szemináriumok - Seminars: Anton Pershin
  • Date: Thu, 28 Apr 2022 06:00:01 +0200 (CEST)
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SZFI SeminarAnton PershinWigner RCP SZFIStructural defects in materials as
the sources of advanced technologies: a theoretical viewpointTuesday, 3 May
2022, 10:00, Bldg 1, auditorium,
Meeting ID: 875 1136 7074 Passcode: 790857Control over the formation of
defects is vital for many emerging areas of physics, chemistry, and materials
science, from electronics to catalysis. Although defects generally tend to
deteriorate the properties of the host material, with a rational design,
these impurities can play a key role in engineering desirable properties,
such as a high conductivity via doping or in boosting catalytic activity,
e.g. for water splitting. Some defects, also known as color centers, result
in the formation of new states inside the band gap, constituting a platform
for the practical implementation of quantum bits. This talk will focus on a
theoretical description of spin defects in advanced materials to design
devices with improved functionality. More specifically, it will be shown how
to extend the coherence time of near-surface nitrogen-vacancy centers in
diamond by varying the type of surface termination. Next, the role of vacancy
defects in CoNiSe2 for the electrocatalytic water splitting will be discussed
[1]. Furthermore, it will be demonstrated how Ni-doping improves the electric
and optical properties of zinc oxide [2]. Finally, surprising effects from a
coupling of organic molecules to spins localized in nanoparticles will be
presented [3].1. A. El Jaouhari et al., The Role of Selenium Vacancies in the
Enhancement of Electrocatalytic Activity of CoNiSe2 for the Oxygen Evolution
Reaction, Journal of Power Sources 514, 230596 (2021).2. A. El Haimeur et
al., Reducing P-Type Schottky Contact Barrier in Metal/ZnO Heterostructure
through Ni-Doping, Applied Surface Science 545, 149023 (2021).3. S. Han et
al., Lanthanide-Doped Inorganic Nanoparticles Turn Molecular Triplet Excitons
Bright, Nature 587, 7835 (2020).&nbsp;Minden érdeklődőt szívesen látunk! -
Everyone is welcome to attend.Róbert Juhászsem-admin AT

  • [Fizinfo] Szemináriumok - Seminars: Anton Pershin, Szeminárium koordinátor, 04/28/2022

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