Invited Talks:

  • "QLEDs und QD-Laser - Optimierung von QD-Eigenschaften mittels ReaxFF+" R. Leitsmann -- 3th Industry Partners Day Fraunhofer FEP Dresden 2015

  • "Simulation chemischer Prozesse - effizient, effizienter, ReaxFF+" O. Böhm und R. Leitsmann -- EFDS Anwenderworkshop Einsatz von Simulationsmethoden im industriellen Umfeld  2015

  • "Ab initio modelling of polar interfaces and nanostructures" R. Leitsmann and F. Bechstedt -- 15th international Conference on Solid Films and Surfaces 2010 Beijing

  • "Nanomagnetism in Si Nanocrystals" C. Panse, R. Leitsmann, and F. Bechstedt -- Rewiev and Results Workshop 2009 LRZ München (presented by C. Panse)

  •  "Quantum Confined Stark Effect in embedded PbTe Nanocrystals" R. Leitsmann, and F. Bechstedt -- Rewiev and Results Workshop 2008 HLRS Stuttgart

  •  "Ab initio Simulations of PbTe-CdTe Nanostructures" R. Leitsmann, and F. Bechstedt -- Rewiev and Results Workshop 2007 HLRS Stuttgart

  • "Lattice type mismatched quantum dots with strong emission in the mid-infrared W. Heiss, H. Groiss, E. Kaufmann, G. Hesser, G. Springholz, F. Schäffler, K. Koike, H. Harada, M. Yano, R. Leitsmann, and F. Bechstedt -- Euro-MBE 2007 Sierra Nevada (presented by W. Heiss)

  • "Quantum dots with coherent interfaces between rocksalt-PbTe and zincblende-CdTe" W. Heiss, H. Groiss, E. Kaufmann, G. Hesser, M. Böberl, G. Springholz, F. Schäffler, R. Leitsmann, F. Bechstedt, K. Koike, H. Harada, and M. Yano -- ICPS 2006 in Wien (presented by W. Heiss)

 


Contributed Talks:

  • "ReaxFF+ I - a new reactive force field method for the accurate description of ionic systems"
    -- DPG Spring Meeting 2016 in Regensburg

  • "ReaxFF+ II - highly efficient parametrization methods for the ReaxFF+ at the example of the hydrolysation of aluminosilicates-- DPG Spring Meeting 2016 in Regensburg

  • "Oxygen Vacancies in the Ultrathin SiO2 Interfacial Layer of High-K/Metal Gate CMOS Devices"
    -- DPG Spring Meeting 2016 in Regensburg

  • "Comprehensive Defect Spectroscopy and Multi-Frequency Charge Pumping Study of High-K Metal Gate Transistors" -- IEEE SISC 2015 (presented by J.. Ocker)

  • "Deciphering Reliability in High-K Metal Gate Technology" -- IEEE SISC 2015 (presented by M. Drescher)

  • "Charge transition levels of oxygen, lanthanum and fluorine related defect structures in bulk hafniumdioxide (HfO2): an ab initio investigation" -- DPG Spring Meeting 2015

  • "Influence of Nitrogen Trap States on the Electronic Properties of HKMG Transistors" -- IIRW 2014 (presented by J. Ocker)

  • "Fluorine Interface Treatments within the Gate Stack for Defect Passivation in 28nm HKMG Technology" -- WODIM 2014 (presented by M. Drescher)

  • "Oxygen Related Defects and the Reliability of High-k Dielectric Films in FETs" -- ISCDG 2013 in Dresden

  • "Lithium Interkalation im kathodenmaterial Vanadiumoxid (V2O5) als Beispiel für den Einsatz moderner Materialsimulationen auf atomarer Basis in der industriellen Forschung" -- Sächsisches Forum für Brennstoffzellen und Energiespeicher" 2012 Leipzig

  • "Post-etch cleaning mechanisms at ultra-low k surfaces" -- DPG Spring Meeting 2011 in Dresden

  • "Modeling of interfaces and nanostructures: Effects of structure mismatch, bond polarity and interface charges" -- DPG Spring Meeting 2010 in Regensburg

  •  "Interfaces between polar materials and nanocrystals" -- ICFSI 2009 in Weimar

  •  "Internal quantum confined Stark effect in embedded IV-VI semiconductor nanodots" -- DPG Spring Meeting 2009 in Dresden

  •  "Structural and Electronic Properties of IV-VI Semiconductor Nanodots" -- APS March-Meeting 2008 in New Orleans

  •  "Electronic Properties of PbTe/CdTe (100) interfaces" -- DPG Spring Meeting 2008 in Berlin

  •  "Ab initio description of nanocrystals" -- SFB IR-ON Meeting 2008 in Bad Hofgastein

  •  "Electronic properties of embedded PbTe Nanodots" -- SFB IR-ON Meeting 2007 in Linz

  •  "Electronic properties of polar PbTe/CdTe (100) interfaces" -- NGS-13 2007 in Guildford

  •  "Electronic properties of PbTe/CdTe (100) interfaces" -- ICN+T 2007 in Stockholm

  •  "Stability and structure of free standing III-V nanorods: An ab initio investigation" -- ICN+T 2007 in Stockholm

  •  "Stability and structure of free standing III-V semiconductor nanorods: An ab initio investigation" -- DPG Spring Meeting 2007 in Regensburg

  •  "Surface influence on stability and structure of III-V nanorods: First-principles studies" -- SFB IR-ON Meeting 2007 in Bad Hofgastein

  •  "Structural and Electronic properties of PbTe(rocksalt)/CdTe(zinc blende) interfaces" -- ICSFS13 2006 in San Carlos de Bariloche

  •  "PbTe/CdTe interfaces: electronic properties" -- SFB IR-ON Meeting 2006 in Wien

  •  "Ab initio calculation of Structural and Electronic Properties of Interfaces between Ionic Compounds: PbTe(rs)/CdTe(zb)" -- DPG Spring-Meeting 2006 in Dresden

  •  "PbTe-quantum dots embedded in CdTe-Matrix" -- SFB IR-ON Meeting 2005 in Bad Ischl

  •  "Excitons in Second-Harmonic Generation (SHG)" -- NANOQUANTA Young-Researchers-Meeting 2005 in Berlin

 


Poster contributions:

  • Simulation of reaction- and diffusion processes in pores of ultra-low k materials using the ReaxFF+ method“ -- DPG Spring Meeting 2016 Regensburg

  • "Vibrational properties and Gibbs free energy of silylation reactions" -- OSI10 2013 Chemnitz

  • "Restoring the k value in damaged ultra-low k materials" -- DPG Spring Meeting 2013 Regensburg

  • "Restoring the k value in carbon depleted ultra-low k surfaces by the silylation of hydroxyl groups with N-trimethylsilylimidazole and dimethyldiacetoxysilane" -- DPG Spring Meeting 2012 Berlin

  • "Repair process for carbon depleted ultra-low k materials" -- MSE 2012 Darmstadt

  • "Charge Transition Levels of Boron and Silicon Impurities in GaAs" -- IEEE Semicond. Conf. 2011 Dresden

  • "Internal quantum confined Stark effect in embedded IV-VI semiconductor quantum dots" 
-- NGS-14 2009 in Sendai

  • "Internal quantum confined Stark effect in embedded IV-VI Semiconductor Nanodots" 
-- QD2008 in Gyeongju

  •  "Stability and structure of free-standing III-V nanorods: An ab initio investigation" 
-- APS March Meeting 2008 in New Orleans

  •  "Free-standing III-V nanorods: An ab initio investigation of the structural and electronic properties" -- NGS-13 2007 in Guildford

  •  "Self-organization of adenin dimer chains on Cu(110) surfaces" 
-- ICN+T 2007 in Stockholm

  •  "Interface structure and shape of rs-PbTe quantum dots embedded in zb-CdTe: An ab initio study" -- ICPS 2006 in Wien

  •  "Nonlinear optical Coefficients from First Principles Calculations" -- DPG Spring Meeting 2005 in Berlin

  •  "Nonlinear optical coefficients from first-principles calculations: Different numerical approaches" -- NANOEXC 2004 in Acquafredda di Maratea

 

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