Prestigious Nozik fellowship for Rens Limpens

20 December 2016

The National Renewable Energy Laboratory (NREL) has awarded the prestigious Nozik postdoctoral fellowship grant to Rens Limpens, a former UvA-PhD student from the Optoelectronic Materials group of Tom Gregorkiewicz.

Nozik fellowship

The grant Limpens received is named after emeritus senior research fellow Dr Arthur J. Nozik. It is awarded to exceptionally qualified scientists who have completed their doctoral research in the field of renewable energy within the past two years, with a promising career of research and leadership ahead of them. The grant allows for a two-year postdoctoral position at the NREL institute in Golden, Colorado.


Limpens, a former PhD student at the Institute of Physics, received the grant for his proposal titled Doped silicon nanocrystals for photovoltaics. Limpens’ project aims to develop efficient carrier extraction within ensembles of close-packed doped silicon nanocrystals in order to achieve viable silicon nanocrystal solar cells. Electrical conductivity problems have limited the photovoltaic potential of these structures for years, for reasons yet to be discovered. The incorporation of doping (both n- and p- type) enables to clarify the origin of this conductivity limitation and, above all, holds great promise for increasing the conductivity.

Published by  IOP