Doctoral Researchers

A2: Nadia Metzkow

Phone: +49 351 463-34335
Office: TU Dresden, ASB/415

After my Master's degree in Chemistry, I was looking for a PhD in the field of physical chemistry of nanomaterials with an application-oriented and multifaceted character. The RTG offered me this opportunity, to step out of my own research bubble and to work in an interdisciplinary and international environment. My project in particular, is about the use of semiconducting nanoparticles for novel transistor structures, that are powerful, flexible and tunable.

Project Topic: Semiconductor nanoparticles for novel transistor structures

Supervisors: Alexander Eychmüller, Karl Leo

Smartphones, computers, televisions, radios, power chargers - transistors can be found in almost every electrical device. Nowadays, such electronic components are expected to become smaller, more flexible, and more powerful. However, a high-performance, flexible, thin-film transistor technology is still missing.

Semiconductor nanocrystals (NCs) have the potential to achieve a breakthrough in transistor performance, as they overcome the intrinsic low carrier mobility of organic semiconductors. It is possible to precisely control the physical and electronic properties of NCs via parameters such as size, shape and composition. Using them in vertical transistor structures with their ultrashort channels is promising, as studies with CdSe NCs have shown recently.[]

In this work, we strive to use different NCs for transistors, which allow to easily realize high-performance devices without nanostructuring. Therefore, NCs like AgInS2 or ZnTe are synthesized to replace the widely studied but more toxic Cd-containing materials. Commonly, the as-synthesized NCs are capped with bulky insulating hydrocarbon-containing ligands which have to be removed in an additional thermal or chemical step. However, this postsynthetic treatment often results in the formation of defects or the removal doesn’t work completely. To avoid the necessity of such a step and to improve the electronic communication, the modification with inorganic ligands is the second focus of this work. The materials are then characterized in terms of their film-forming properties and electronic parameters and finally used for fabricating different types of transistors.

10/2018 – 03/2022

Master of Science in chemistry

Technische Universität Dresden

  • Focus: physical, inorganic and applied chemistry
  • Research internship: fabrication of layer-by-layer colloidal nanostructures and investigation of NIR plasmon-exciton interactions
05/2021 – 11/2021

Internship for the Master’s thesis project

Northwestern University (Evanston, USA)

  • Focus: Optimization of synthetic approaches for branched gold nanoparticles in colloidal solution and fabrication of periodic spiky gold nanoparticle arrays
11/2018 – 04/2019

ERASMUS semester in chemical engineering

École National Supérieure de Chimie de Rennes (France)

10/2015 – 09/2018

Bachelor of Science in chemistry

Technische Universität Dresden

  • Student research assistant in the physical chemistry, working on the synthesis and characterization of metal oxide aerogels and the development of novel, green synthesis routes
  • Thesis: Doping of metal oxide aerogels with rare earth elements