Doctoral Researchers

B2: Borja Rodriguez Barea

E-Mail: Borja.rodriguez-barea@hzdr.de
Phone:
Office: Helmholtz-Zentrum Dresden Rossendorf,
Room: 613/134

My fascination has always been driven by mankind-manufacturing. After my master's, I specialized in state-of-the-art integrated circuits (ICs) fabrication. During the PhD, we aim to study the potential of DNA origami for electronics and its combination with 2D materials.
For that, we are working with a combination of bottom-up and top-down fabrication processes. Specifically, for top-down fabrication, a methodological comparison between electron-beam lithography and thermal-probe lithography will be carried out. Within the RTG, we have a multidisciplinary environment where we generate innovative solutions to complex problems.
Project Topic: Electronic circuits by self-organization based on DNA origami molds

Supervisors: Artur Erbe, Ralf Seidel, Yana Vaynzof

In an effort to increase processing power, electronic circuits look for new bottom-up strategies. Namely, DNA nanotechnology has shown valuable tools for the creation of nanostructures of arbitrary shapes that can be used as templates.

We have demonstrated the formation of 1D Au nanostructures based on DNA Origami templates, which are first formed by self-assembly and metallized in a subsequent step. DNA nanomolds are employed, inside which gold deposition is employed by site-specific attached seeds. During this step, the walls of the nanomolds serve as constraints. To prove their metallic nature, top-down approach, allows us to perform temperature-dependent charge transport measurements along the nanostructures.
In addition, it’s been demonstrated that 2D materials with tailored optoelectronic properties can be contacted and integrated with EBL and NanoFrazor fabricated electrodes, thus allowing the fabrication of a low-power consumption e-circuit made by low-dimensional materials.

Please find more information here:

[1] T. Bayrak, et al., Nano Lett. 18, 2116 (2018).

[2] J. Ye, et al., Adv. Mater. 33, 2100381 (2021).

[3] T. Bayrak, et al., Scientific Reports 11, 1922 (2021).

Education
11/2020 - 11/2021

Visiting Researcher

Weizmann Institute of Science (Israel)

  • Development of Chiral Induce Spin Selectivity (CISS)-based spintronic and optoelectronic devices
10/2019 - 09/2020

Master's degree on nanoscience and nanotechnology

Universitat de València (Spain)

  • Thesis: Lantahnide (III) MRI contrast agent derivatives as new single-ion magnets for cryogenic magnetic refrigeration: A joint study on the field dependence of spin dynamics and thermodynamics
10/2016-09/2017

ERASMUS+ Scholarship

Università degli Studi di Parma (Italy)
09/2014 - 09/2019

Chemistry degree

Universitat de València (Spain)

  • Thesis: Multi-functional and multi-response single ion magnets based on mononuclear lanthanide complexes