illuminated Helium laboratory from outside through the window

Conferences & Workshops

June 2-5, 2020 

nature conference: Microrobots and Nanorobots for Biotechnology, DGUV Akademie Dresden, Germany

March 15-20, 2020 DPG-Frühjahrstagung, Dresden
Feb. 10/11, 2020 

Sächsischer Forschungs- und Vernetzungs-workshop »Thermoelektrische Anwendungen in der Industrie«, Meißen

Jan. 23/24, 2020 BIOREMIA Kick-off Meeting, IFW Dresden
Sept. 25-27, 2019 Annual IFW Summer School for PhD students in Szczecin, Polan

Sept. 15-20, 2019


ECASIA19: 18th European Conference on Applications of Surface and Interface Analysis

Sept. 13-20, 2019

 Summer School Spectroelectrochemistry, IFW Dresden
May 20/21, 2019 International Workshop "Topology meets materials – Weizmann meets Dresden", IFW Dresden
March 28/29, 2019 

International Workshop "Quantum Dynamics, Transport, and Exotic Orders: Strolling among Spins and Strong Correlations", IFW Dresden

March 28/29, 2019 Joint workshop of BAM Berlin and IFW Dresden, IFW Dresden

Dec. 4-5. 2018

 UKRATOP Workshop, IFW Dresden

Oct. 1 – 2, 2018


SAW Symposium, Westin Bellevue Dresden, Dresden, Germany

Aug. 28-30, 2018 Spin , waves & interactions 2018, Greifswald, Germany

April 8- 11, 2018


667. WE-Heraeus-Seminar on System-oriented approach to thermoelectrics: Materials – Interfaces – Devices in Bad Honnef, Germany

March 11-16, 2018


Joint Conference of the Condensed Matter Divisions of the DPG and EPS,

  • Session "Geometry and Topology-Controlled Nanoarchitectures", organized by Prof. Dr. V. Fomin, IFW Dresden
  • Symposium “Topology in Condensed Matter Physics (SYTO)”, co-organizer Prof. Dr. Jeroen van den Brink, IFW Dresden
  • Symposium “Voltage Control of Functional Interfaces: Magneto-ionic Meet Memristive Systems (SYVC)”, Co-organizer Dr. Karin Leistner, IFW Dresden

Feb. 1, 2018


Workshop of the DFG Priority Programme 1458 “High Temperature Superconductivity in Iron Pnictides“, IFW Dresden

Jan.  29-31, 2018


EPSQMat 2018: International Workshop on Electron and photon spectroscopies of quantum materials: status and perspectives, IFW Dresden

Lectures this week

Friday 03.07.2020
ITF zoom seminar10:00
Location Join zoom seminar: pw: 916716 /
Speaker Pritam Bhattacharyya
Topic Pariser-Parr-Pople Model Based Electron Correlated Study of Linear Optical Absorption Spectra in Armchair-shaped Triangular Graphene Quantum Dots
Graphene quantum dot offers many potential applications due to their tunable band gaps and optical properties, depending on their shape and size. Recently, Yuan and coworkers claimed that the armchair-type triangular graphene quantum dots (TQDs) could be a promising candidate for optoelectronic applications, due to their good stability, high-performance, and high color-purity. This investigation set the stage to fabricate high-performance next-generation TQDs-based lightemitting diodes. In this work, the electronic and optical properties of various armchair-shaped TQDs were investigated. For the purpose, we carried out semi-empirical calculations by employing standard and screened parameters in the Pariser-Parr-Pople (PPP) model Hamiltonian, and the electron-correlation effects were incorporated using either QCI or MRSDCI approach, both for the ground and the excited states of the TQDs. On top of wave function based calculations using a higher level of theory, the accuracy of our results is further increased due to the long-range Coulomb interaction term present in the PPP model. Our computed results reveal that the optical spectra are blue-shifted with the decreasing size of the TQDs. In each optical absorption spectra, the first peak, which corresponds to the optical gap, is extremely-narrow as well as highly-intense and appeared due to transition at the band-edge, indicating that armchair-shaped TQDs are exceptionally unique for light-emitting diode (LED) fabrication. For the larger TQD considered in this work, we found good agreement with the experimental data. Finally, we discuss the influence of the symmetry in optical absorption based on the PPP model.

Invited by Dr. Liviu Hozoi
Contact Grit Rötzer

Lectures next week

Monday 06.07.2020
Location Hörsaal, IFW Dresden A1E.10
Speaker Grigory Shipunov
Topic Composition, structure, properties of some transition metal tellurides
Invited by Prof. Dr. Bernd Büchner
Contact Kerstin Höllerer

Dresden Science Calendar

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