2016 – 2019

My research at the TU Delft focused on 2D semiconductors such as phosphorene and antimonene and was directed to answer the following questions:

  • How does the mobility of electrons, holes, and excitons depend on the thickness of the 2D semiconductor? Is quantum confinement resulting in a different mobility as theoretically predicted and which sheet thickness is the optimum for optoelectronic applications?
  • What is the nature of excited states in 2D semiconductors? Are excitons or free charges generated when they are photoexcited?
  • How do excitons or charges decay in 2D? Are they recombining radiatively or non-radiatively, or are they trapped at defects? Also, is more than one electron-hole pair generated by excitation with a photon (carrier multiplication)?

I started in 2016 to work as a FOM/f fellow under supervision of prof. dr. Laurens Siebbeles in the project “Dynamics of Charge Carriers and Excitons in Phosphorene”. Before working at the TU Delft, I studied electrical engineering at the Universität Duisburg-Essen in Germany. After that, I conducted my PhD research within an industrial partnership programme between AMOLF and Philips Research in Eindhoven, The Netherlands. I have defended my PhD thesis “Propagation of Light in Ensembles of Semiconductor Nanowires” in 2010 at Eindhoven University of Technology. In 2011, I moved to ICFO-Institute of Photonic Sciences in Barcelona, Spain, where I worked as a Marie-Curie fellow on plasmonically enhanced quantum dot photodetectors.


I am proud to announce that our collaborative paper on Charge Photogeneration and Transport in AgBiS2 Nanocrystal Films for Photovoltaics has been published in SolarRRL recently.

Congratulations to Joeri Benschop

Joeri succesfully defended his Bachelor thesis “Liquid Exfolation of Antimony” on the 15th of June.

June 2017: Gerben Bartels, Olivier Kuijpers, and Pien Abbink started their end of year laboratory work on liquid exfoliation of antimony.

May 2017: I have presented my recent findings about liquid exfoliation of Black Phosphorus at the EMRS Spring Meeting in Strasbourg, France.

Speeddating with high school girls

On 19th January 2017 I joined a speeddating event organized by VHTO at Rijnlands Lyceum in Wassenaar. I was positively surprised by the girls being very interested in Chemistry, Physics, Biology, and Mathematics. I hope that the girls enjoyed this event as much as I did.


September 2016: I have presented my first results about liquid exfoliation of Black Phosphorus at the Nano GE meeting in Berlin, Germany.

FOM/f fellowship granted

I have been awarded with a FOM/f fellowship to perform research at the Optoelectronic Materials group headed by Prof. L. Siebbeles at the TU Delft. The research project started on the 1st of January 2016.