Fyzikální ústav Akademie věd ČR

Semináře

St, 11/09/2013 - 10:00

Christophe Ballif (head of Photovoltaics and thin film electronics laboratory at EPFL-IMT, and director of CSEM PV-Center in Neuchâtel, Switzerland.)

In the thin film silicon solar cell technology, remarkable improvements and novel device design should allow for low production costs of solar modules with efficiency 10-11% in the range of 0.35-0.4€/Wp. The advantage of low cost and abundant materials has to be leveraged by clever solar park designs to compete with technologies with higher efficiency. Challenges to reach efficiencies of devices over 16% will be discussed.

Čt, 12/09/2013 - 14:00

Pavel Novák

Calculation of the crystal field parameters (CFP) of the rare-earth (RE) ions in solids is a formidable problem and until recently no robust ab-initio method to calculate them was available. The main problem is that in most approaches the 4f electrons of RE are allowed to interact with the nonspherical electron density they create themselves and this false selfinteraction completely distorts the crystal field. The second problem is that no ab-initio method is capable to determine correctly hybridization of the 4f levels with ligand electron states.

St, 18/09/2013 - 15:00 - 16:00

Cedric Rocha Leao (Federal University of ABC, Santo André, Brazil)

Functioning in a similar way to photovoltaics, semiconductors have been shown to work effectively as radiation detectors, capable of accuracy that allows even the identification of the isotope source of the radiation. The materials most suitable for that purpose, however, require high costs of fabrication or operation, severely limiting their large scale application for ends that go from medical to national security.

Minulé semináře

Robert Dittmer & Wook Jo Recent progress in the research of lead-free piezoceramics at TU Darmstadt 07.12.2011 10:00
Laurent Bellaiche Ferroelectric vortices from atomistic simulations 06.12.2011 10:00
Hans Ulrich Fuchs A Dynamical Theory of Heat – Using and Understanding Thermodynamics 01.12.2011 14:00
Lars Bergqvist Suppression of Standing Spin Waves in Low-dimensional Ferromagnets 29.11.2011 15:00
Prof. Dr. Lukas M. Eng Multiferroics: Wide-bandgap semiconductors with challenging applications 24.11.2011 15:00
Technologický transfer a ochrana duševního vlastnictví ve FZÚ 23.11.2011 14:00
Ingo Dierking Polymer stabilized liquid crystals 18.11.2011 10:00
Robert Turanský Matematický zápis Maxwellových rovníc 16.11.2011 15:00
Ivan Štich Quantum Monte-Carlo modeling of electronic correlation: Gound- and excited electronic states 15.11.2011 15:00
R. Turanský a I. Štich Azobenzene: From electronic structure to molecular switching 14.11.2011 15:00
Vojtěch Kundrát Experiment TOTEM - Měření elastického a totálního účinného průřezu při energii 7 TeV 11.11.2011 13:30
Dr. Roman V. Yusupov Experimental manifestations of the Nb4+ O- polaronic excitons in KTa(1-x)Nb(x)O(3): Photo-induced EPR and optical absorption. 11.11.2011 10:00
Vlastimil Křápek Dynamical mean field modeling of LaCoO3 10.11.2011 14:00
František Slanina Spectra and localization in random graphs 08.11.2011 15:00
Xavier Marti Quo Vadis Spintronics? 08.11.2011 10:00
Marcus Kollar Correlated electrons in nonequilibrium 03.11.2011 15:00
Adam Sweetman Atom manipulation and sub-molecular imaging using qPlus NC-AFM 02.11.2011 14:00
Prokop Hapala Teoretické studium optických vlastností křemíkových nanokrystalů metodou funkcionálu elektronové hustoty 01.11.2011 15:00
Joachim Krug Records in a changing world 01.11.2011 14:00
Dr. Christian David Diffractive optics for imaging on x-ray tubes, synchrotrons, and free-electron lasers 27.10.2011 10:00
Venkatesan Jambunathan Ho doped potassium rare earth double tungstate laser operating around 2.1 μm 26.10.2011 11:00
Jakub Šebera Quantum Chemistry Study of Porphyrin and Phthalocyanine Systems within DFT Methods 25.10.2011 15:00
Nicoleta Nicoara Structural and electronic properties of PTCDA organic molecules on semiconductor surfaces 25.10.2011 10:00
Jiří Chýla Hlavní výsledky z LHC: dojmy z letních konferencí 21.10.2011 13:30
Jan Hladký Částicová zlatá léta sedmdesátá (aneb naše začátky IV) - Elektronické experimenty v CERN a ÚFVE Serpuchov (via LVE SÚJV Dubna) 20.10.2011 15:00
Pavel Augustinský Parquet equations as impurity solver 20.10.2011 14:00
E. Hulicius, J.J. Mareš, F. Kadlec Transportní vlastnosti železem dotovaného nitridu gallitého 19.10.2011 15:00
Pavel Augustinský Stability of Fermi liquid with respect to dynamical fluctuations in strongly correlated electron systems 18.10.2011 15:00
Rüdiger-A. Eichel Interplay between defect structure and piezoelectric properties of Pb[Zr,Ti]O3 and ‘lead-free’ alternative compounds 18.10.2011 10:00
Miloš V. Lokajíček Kvantová fyzika bez pozorovatelů a paradoxů? 13.10.2011 15:00

Copyright © 2008-2010, Fyzikální ústav AV ČR, v. v. i.