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Dr. Selina Olthof

Phone: +49-221 470 - 4463
Fax: +49-221 470 - 5144
E-Mail: selina.olthofSpamProtectionuni-koeln.de
Room: 142

 

Research Interests

My re­se­arch in­te­rest is cen­te­red around novel organic semiconductors, based on organic molecules as well as hybrid perovskites. These ma­te­ri­als hold great po­ten­ti­al for the use in next ge­ne­ra­ti­on en­er­gy re­la­ted ap­p­li­ca­ti­ons such as light-emit­ting di­odes and pho­to­vol­taics, as well as elec­tro­nic ap­p­li­ca­ti­ons like tran­sis­tors and me­mo­ry de­vices.

In these mul­ti­laye­red struc­tu­res, char­ge trans­port bar­ri­ers bet­ween the different se­mi­con­duc­tors or to the in­or­ga­nic con­tact ma­te­ri­als play a cru­ci­al role for the de­vice per­for­mance. The­re­fo­re, my re­se­arch is focus on mea­su­ring, un­der­stan­ding, and in­flu­en­cing the en­er­ge­tic pro­per­ties and the alignment at in­ter­faces using photoelectron spectroscopy. I want to cor­re­la­te fin­dings re­gar­ding the en­er­ge­tic pro­per­ties with the elec­tro­nic per­for­mance and de­vice cha­rac­te­ris­tics. Fur­ther­mo­re, I in­ves­ti­ga­te the con­cept of controlled molecular do­ping in organic semiconductors, which makes it pos­si­ble to im­pro­ve the film and de­vice per­for­mance due to the pas­si­va­ti­on of un­wan­ted trap sta­tes, the in­crea­se in film con­duc­tivi­ty, and the pos­si­bi­li­ty to con­trol the Fermi level po­si­ti­on.

Curriculum Vitae

Since 11/2012 University of Cologne, Researcher (Habilitand) at the Institute for Physical Chemistry aasociated with the group of Prof. Klaus Meerholz.
10/2019 – 09/2022 Shaanxi Normal University, Xi’an (China) Part Time Professorship associated with Prof. Shengzhong (Frank) Liu’s group
01/2018 – 06/2018

Technical University Dresden, Eleonore Trefftz Visiting Professor at the Center for Advancing Electronics Dresden (cfaed) and Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP).

10/2010 - 09/2012

Princeton University, DAAD Fellowship Post-Doc position at the Department of Electrical Engineering with Prof. Antoine Kahn.

09/2006 – 06/2010

Technical University Dresden, PhD studies at the Institut für Angewandte Photophysik in the group of Prof. Karl Leo. PhD thesis: Photoelectron Spectroscopy on Doped Organic Semiconductors and Related Interface.

01/2005 – 03/2006

Max-Planck-Institute for Solid State Research, in the group of Prof. Klaus Kern. Diplomarbeit (Master Thesis) on the topic. Rastertunnelmikroskopie und –spektroskopie an Halbleiternanostrukturen (English: Scanning tunneling microscopy and spectroscopy of semiconductor nanostructures).

08/2003 – 05/2004

NUI Maynooth, Erasmus Fellowship for a two semester studying abroad in Maynoot, Ireland.

2000 – 2006 University of Stuttgart, Studying physics with focus on astrophysics, particle physics, and nanotechnology.

Grants and Awards

2021 Bernhard Heß Preis Price is given by the University Rgensburg
2019 Gaede Preis Price is given by the German Physics Society (DPG) for outstanding research in the field of fundamental and vacuum based science
2018 Eleonore Trefftz fellowship Visiting Professorship (6 months) at the Technical University Dresden (cfaed/iapp)
2010 Emanuel-Goldberg-Preis of the Technical University of Dresden awarded for the PhD thesis 2010
2010 DAAD Fellowship for a two year Post-Doc stay in Princeton, USA
2003 Erasmus Fellowship for one year studying abroad in Maynooth, Ireland

 

Functions

since 2021 Gender officer of the TIDE Graduate School
since 2021 Member is "Lenkungsausschuss CGSC" of the Cologne Graduate School  Chemsity
since 2020

Executive board member of the SPP2196 “Perovskite Semiconductors: from Fundamental Properties to Devices                             

since 2020 Member of Komission "Sicherung guter wissenschaftlicher Praxis" of the University of Cologne  
since 2020

Member of the Gaede Preis committee (DPG)

since 2020 Editorial Advisory Board Member of ACS Applied Materials & Interfaces
2016 - 2021 Editorial Board member at Scientific Reports