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DS: Fachverband Dünne Schichten

DS 9: Organic Thin Films II

DS 9.7: Vortrag

Montag, 7. März 2016, 16:30–16:45, H11

Magnetic transition metal phthalocyanine thin films, tuning of electronic properties via alkali metal doping — •Olga Molodtsova^1,2, Sergey Babenkov¹, Ralf Nyholm³, Karina Schulte³, Denis Vyalikh⁴, Oleg Vilkov⁴, Volodymyr Maslyuk⁵, Ingrid Mertig⁵, Thomas Bredow⁶, and Victor Aristov^1,7,8 — ¹DESY, Hamburg, Germany — ²ITMO, Saint Petersburg, Russia — ³Max-lab, Lund, Sweden — ⁴BESSY, Berlin, Germany — ⁵Uni Halle, Germany — ⁶Uni Bonn, Germany — ⁷ISSP RAS, Chernogolovka, Russia — ⁸TU Bergakademie, Freiberg, Germany

The evolution of electronic structure of the MTM-Pc*s intrinsic and with potassium doping has been studied by means of photoemission spectroscopy, near-edge X-ray absorption fine structure and DFT calculations. The DFT calculations and detailed analysis of the core-level spectra permit us to suggest possible lattice sites for the potassium ions. The data disclosed filling of the lowest unoccupied molecular orbital upon doping and associated changes of the core level absorption spectra. None of the films prepared in our studies showed a finite electronic density of states at the Fermi level. This work was supported by the RFBR Grant No. 13 -02-00818 and the BMBF-Project No. 05K12GU2, PSP-Element No. U4606BMB1211