Doctoral Researchers

B7: Lukas Mielke

E-Mail: mielke-lukas@ipfdd.de
Phone: +49 351 4658 1744
Office: IPF Dresden, W 601

During my bachelor thesis I first encountered research with nanoparticles. More precisely, I prepared spherical gold nanoparticles and gold-palladium heterostructures that were functionalized wet-chemically and then characterized and assembled into highly ordered films, called superstructures. I was able to further deepen the knowledge around nanoparticle chemistry within my master’s studies in theoretical and practical courses such as nanochemistry, time-resolved spectroscopy on nanostructures, nanomaterials in optics, electronics and sensing, and biohybrid nanostructures.

Of particular interest to me were the opportunities for industrial applications resulting from the unique properties of nanoparticles. Therefore, during the master's thesis, I addressed the use of various lithographic methods to deposit optically active films consisting of semiconducting quantum dots to design and build a prototype miniaturized near-infrared spectrometer. Following on from this, within my Ph. D. project, I will focus on the development of nanoparticle-based gas sensors and characterize them using an in-house built test system.

Project Topic: Chromatographic Sensors Obtained by Vertical Integration of Nanoparticle Composites

Supervisors: Hendrik Schlicke, Andreas Fery

Current state of the art commercialized gas sensors provide high sensitivities, but can hardly identify individual analytes from complex mixtures. Recently, nanoparticle-based systems that use kinetic response features have proven to be beneficial for discrimination of gaseous analytes. Within this project new types of nanocomposite sensors with intrinsic chromatographic fractionation shall be developed, which are expected to significantly improve abilities to characterize vapor and gas mixtures. This approach shall contribute to the field of low cost, portable and selective sensors, which are in great demand in the food, medical and security industries.[1]

[1] H. Schlicke, S. C. Bittinger, H. Noei, T. Vossmeyer, ACS Appl. Nano Mater. 2021, 4, 10399−10408.

Education
10/2020-06/2023

Master of Science in Chemistry

University of Hamburg

  • Thesis: Quantum Dot Based Color Conversion Arrays for NIR Spectroscopy
10/2017-01/2021

Bachelor of Science in Chemistry

University of Hamburg

  • Thesis: Synthesis and Characterization of Gold Nanospheres and Palladium Hetero-Nanostructures for Plasmonic Superlattices