Practical trainings, student assistants and theses

Investigation of thin film oxide layers by ion beam sputtering in nanoelectronics (Id 415)

Bachelor theses / Master theses / Diploma theses

**Tasks:**
1. Development of thin film oxides using Ion Beam Sputtering for nanoelectronic applications
2. Optimization of process parameters for the controlled fabrication of thin oxide layers
3. Characterization of the synthesized thin oxide films
4. Evaluation of the electronic, structural, and mechanical properties of the fabricated oxide films
5. Application of thin film oxides in specific nanoelectronic devices and performance comparison
with conventional materials

Department: Nanomaterials and Transport

Contact: Zscharschuch, Jens, Dr. Garcia Valenzuela, Aurelio

Requirements

**Requirements:**
1. Enrolment in a master's program in materials science, chemistry, physics, or a related field
2. Interest in thin film coating and nanoelectronics
3. Basic knowledge in the fabrication and characterization of thin films
4. Experimental skills in laboratory techniques
5. Independent work ethic and teamwork capabilities

Conditions

**We offer:**
1. An innovative research environment with access to state-of-the-art technology and laboratory
facilities.
2. Supervision by experienced scientists.
3. Opportunities to participate in conferences.
4. Practical experience in the field of thin film coating and nanoelectronics.

The master's thesis has a duration of six months. Extension or adjustment of the duration can be
discussed with the supervisor.

Interested students are requested to submit their application documents, including a resume,
university transcript and a motivation letter.

Online application

Please apply online: english / german

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Structuring 2D materials via nanolithography (NanoFrazor) (Id 414)

Bachelor theses / Master theses / Diploma theses

**Tasks:**
1. Investigate nanolithography techniques using the Nanofrazor for the structuring of 2D materials
2. Optimize process parameters for precise control of size and shape of generated nanostructures
3. Characterize the modified 2D materials
4. Evaluate the manufactured nanostructures
5. Compare the performance of different nanolithography approaches and identify optimization
opportunities

Department: Nanomaterials and Transport

Contact: Zscharschuch, Jens

Requirements

**Requirements:**
1. Enrolment in a master's program in materials science, chemistry, physics, or a related field
2. Interest in nanotechnology and nanolithography
3. Basic knowledge in the fabrication and characterization of 2D materials
4. Experimental skills in working with laboratory techniques
5. Independent work ethic and teamwork capabilities

Conditions

**We offer:**
1. An innovative research environment with state-of-the-art laboratory equipment.
2. Supervision by experienced scientists.
3. Opportunities to participate in conferences.
4. Practical experience in the field of nanotechnology and materials science.

The master's thesis has a duration of six months. Extension or adjustment of the duration can be
discussed with the supervisor.

Interested students are requested to submit their application documents, including a resume,
university transcript and a motivation letter.

Online application

Please apply online: english / german

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2D Material Exfoliation Optimisation (Id 413)

Bachelor theses / Master theses / Diploma theses

**Tasks:**
1. Investigate various exfoliation methods for 2D material fabrication
2. Optimize exfoliation processes to achieve high-quality, thin layers
3. Characterize the synthesized 2D materials using advanced analysis methods
4. Evaluate the electronic, optical, and mechanical properties of the exfoliated 2D materials
5. Compare the performance of different exfoliation approaches and identify optimization
opportunities

Department: Nanomaterials and Transport

Contact: Zscharschuch, Jens

Requirements

**Requirements:**
1. Enrolment in a master's program in materials science, chemistry, physics, or a related field
2. Interest in nanomaterial science
3. Basic knowledge in the synthesis and characterization of materials
4. Experimental skills in handling laboratory equipment
5. Independent work mentality and ability to work in a team

Conditions

**We offer:**
1. An innovative research environment with state-of-the-art laboratory equipment.
2. Supervision by experienced scientists.
3. Opportunities to participate in scientific conferences.
4. Practical experience in the field of materials science.

The master's thesis has a duration of six months. Extension or adjustment of the duration can be
discussed with the supervisor.

Interested students are requested to submit their application documents, including a resume,
university transcript and a motivation letter.

Online application

Please apply online: english / german

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Student internship, research assistant, school practical training, master/diploma thesis, compulsory internship (Id 407)

School practical training / Student practical training / Bachelor theses / Master theses / Diploma theses / Student Assistant / Holiday job / Compulsory internship / Volunteer internship / Research Assistant

At Helmholtz-Zentrum Dresden-Rossendorf (HZDR), over 1,500 employees from more than 70 nations are conducting cutting-edge research in the fields of ENERGY, HEALTH, and MATERIALS to address the major challenges facing society today.
The Center for Advanced Systems Understanding (CASUS), founded in Görlitz in 2019, is a German-Polish interdisciplinary research center focusing on data-intensive digital systems.
CASUS offers student internships in a wide range of scientific fields. You are welcome to apply and join CASUS if you are interested in gaining knowledge in the following research areas:

  • Theoretical Chemistry
  • Earth System Science
  • Matter under Extreme Conditions
  • Systems Biology
  • Digital Health
  • Computational Radiation Physics
  • Computational Quantum Many-Body Theory
  • Mathematical Foundations of Complex System Science
  • Dynamics of Complex Living Systems
  • Machine Learning for Infection and Disease
You can also apply to join our administrative team as a student assistant.

Institute: CASUS

Contact: Dr. Mir Hosseini, Seyed Hossein, Mazur, Weronika, Dr. Calabrese, Justin, Dr. Martinez Garcia, Ricardo, Dr. Bussmann, Michael, Dr. Cangi, Attila, PD Dr. Kuc, Agnieszka Beata, Dr. Yakimovich, Artur, Dr. Knüpfer, Andreas

Requirements

  • Student in computer science, physics, chemistry, or related fields
  • Student already enrolled at the university in Germany, Poland or Czech Republic (close exchange and attendance in the office preferable and combined with the moblie working from Germany combinable)
  • Eager to learn new skills
  • Strong motivation to work in a collaborative environment
  • Preliminary experience in code development is an advantage
  • Excellent communication skills in English and/or German or Polish

Conditions

  • A vibrant research community in an open, diverse and international work environment
  • Scientific excellence and extensive professional networking opportunities
  • A wide range of qualification opportunities
  • We support a good work-life balance with the possibility of part-time employment, mobile working and flexible working hours
  • Either an immediate start or a start in 2024 is possible
Please submit your application (including a one-page cover letter, CV, academic degrees, transcripts, etc.) online on the HZDR application portal

Online application

Please apply online: english / german

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Automatisierte Auswertung von 1D- und 2D-Ramanspektroskopischen Meßreihen (Id 393)

Bachelor theses / Master theses / Diploma theses

1D- und 2D-Ramanspektroskopische Meßreihen oder auch Maps liefern detaillierte ortsaufgelöste chemische Informationen über die untersuchten Proben. Damit kann z. B. die Komponentenverteilung in Stoffgemischen quantitativ bestimmt oder die Homogenität einphasiger Proben gezeigt werden. Andererseits lassen sich lokale Strukturveränderungen, Spannungszustände, Stapelfolgenänderungen in 2D-Materialien und Punktdefekte charakterisieren. Voraussetzung dabei ist eine möglichst engmaschige Datenerfassung bis hin zur Auflösungsgrenze der verwendeten Laserstrahlung sowie eine große Anzahl an Messpunkten. Mit modernen Spektrometern sind Messzeiten im Sekundenbereich gut realisierbar. Die Umsetzung der spektroskopischen in eine chemische Information erfordert dann die Extraktion von Parametern wie Schwingungsfrequenz, Intensität und Linienbreite durch Spektrenanpassung. Die Gerätesoftware bietet dafür nur eingeschränkte Möglichkeiten.
Im Rahmen einer Graduierungsarbeit oder Hilfstätigkeit soll in Zusammenarbeit mit dem HZDR-Rechenzentrum ein Auswertealgorithmus für die automatisierte Auswertung von 1D- und 2D-Ramanspektroskopischen Meßreihen entwickelt, an Beispielen getestet und dokumentiert werden.

Department: Nanocomposite Materials

Contact: Dr. Krause, Matthias

Requirements

1. Studium der Werkstoffwissenschaften, Physik oder Chemie
2. Interesse, Freude und Befähigung für wissenschaftliche Arbeit
3. Grundkenntnisse in Programmierung und sicherer Umgang mit Büro- und wissenschaftlicher Software
4. Sehr gute Englisch-Kenntnisse

Conditions

Die Arbeit ist in die umfangreichen Aktivitäten der Abteilung Nanoelektronik (FWIO) zu 2D-Werkstoffen eingebettet. Sie kann jederzeit aufgenommen werden.

Online application

Please apply online: english / german

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Experimental investigation of Taylor bubble shape in narrow tubes with constrictions (Id 390)

Bachelor theses / Master theses / Diploma theses / Compulsory internship / Volunteer internship

The presence of geometrical singularities in pipes may significantly affect the behavior of two-phase flow and subsequently the liquid film thickness or bubble shape. Therefore, it is an important subject of investigation in particular when the application concerns industrial safety and design.
In this work, the shape of individual air Taylor bubble in vertical tubes with constrictions subjected to counter-current liquid is experimentally performed and the influence of the obstacle on the bubble shape is analyzed. The restrictions that the constrictions on narrow tubes imposes on the motion of the interface, and its effect on the bubble shape, will be addressed in terms of geometrical and flow parameters.

In this work, the student will experimentally investigate and record high quality images and gain knowledge about experimental work regarding two-phase flow, image acquisition with MATLAB and data organization. The results will lead to the development of a flow regime map in function of diameter and viscosity.

Institute: Institute of Fluid Dynamics

Contact: Maestri, Rhandrey

Requirements

General interest in fluid mechanics;
Preliminary experience in experimental work is desirable;
Good written and oral communication skills in either English or German.

Conditions

Immediate start;
Duration of the internship is anticipated to be 3 months but can be modified according to study regulations;
Remuneration according to HZDR internal regulations.

Online application

Please apply online: english / german

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Synthesis of innovative collectors for application in recovery of metals from industrial wastewaters (Id 384)

Bachelor theses / Master theses / Diploma theses / Compulsory internship

Ion flotation and solvent extraction are promising separation processes to separate and/or remove low concentrated metals from process waters. The demand for developing special collectors (ion flotation reagent)/extractants for enhanced separation efficiency of metals using these processes is increasing due to increased demand for the metals. Further to make these processes sustainable, these special molecules need to be highly selective, efficient and ecofriendly. Strong metal binding ability is the main requisite for such novel molecules and further depending on their application, they need to behave as flotation or solvent extraction reagent. However, synthesizing novel collectors having both abilities is a challenging task. Thus, the main aim is to modify the molecules with already known metal specificity, to introduce the hydrophobicity required for the ion flotation or solvent extraction process.
This student work aims to modify the molecules by adding new functionalities and synthesizing them for improved metal complexation and process application. Additionally, their characterization as possible reagents in either flotation or solvent extraction processes will be investigated. The results will help in fundamental understanding of modified molecules in terms of their interaction with metals as well as form the basis for the development of a sustainable metal recovery process. This interdisciplinary project offers a unique integration of approaches, competences and resources in biotechnology, chemistry and process and environmental engineering and involves different departments at HIF.

Tasks:

  • Selection of hydrophobic group
  • Modification, synthesis and purification of novel molecules
  • Characterization of developed molecules, Ion flotation or solvent extraction tests

Department: Hydrometallurgy

Contact: Dr. Chakankar, Mital Vivek, Dr. Kelly, Norman, Dr. Patil, Ajay Bhagwan

Requirements

  • Field of study: Chemistry, Chemical Engineering
  • Experience in organic chemistry, knowledge of the techniques to synthesize compounds and to characterize them; experience in coordination chemistry, biochemistry and/or technical chemistry is advantageous
  • Good communication skills in German and English, spoken and written
  • Ability to work independently and systematically

Conditions

Working in a multi-disciplinary and international team, with world class research environment at HZDR and HIF.
Can get cross functional working experience and exposure to organic synthesis, modified biomolecules, solution and extractive hydrometallurgy, process biotechnology, chemical and environmental engineering

  • Working place HZDR: Location Dresden or Freiberg (HIF)
  • Start date: Either an immediate start or a start in 2023 is possible
  • Duration: 6 month
  • Remuneration according to HZDR internal regulation

Online application

Please apply online: english / german

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Medizinische Chemie/ Organische Synthese neuer Radioliganden für die Krebsdiagnostik und -therapie (Id 295)

Student practical training / Bachelor theses / Master theses

Wir beschäftigen uns mit der Entwicklung von PET-Radiotracern, die Rezeptoren im Tumormikromilieu (TME = tumor microenvironment) für die Diagnostik und Therapie von Krebs sichtbar machen. Dazu werden geeignete tumoraffine Leitstrukturen identifiziert (niedermolekulare organische Moleküle, Peptide und Peptidomimetika), synthetisiert und mit einem geeigneten Radionuklid kovalent (z. B. Fluor-18, Iod-123) oder über einen Chelator (z. B. Gallium-68, Lutetium-177) markiert. Diese Radioliganden werden in vitro an Tumorzelllinien und in vivo im Tiermodell hinsichtlich einer Anwendung in der Nuklearmedizin getestet. Langfristiges Ziel ist die Translation der entwickelten Radiotracer in die Klinik als Diagnosewerkzeug (PET/CT) oder nach Markierung mit einem Beta- oder Alphastrahler für die Endoradiotherapie von Tumorerkrankungen.
Im Rahmen eines Studentenpraktikums oder einer Bachelor- oder Masterarbeit sollen organische Wirkstoffmoleküle synthetisiert und für eine anschließende radiochemische Markierung modifiziert werden. Die neuen Radioliganden werden dann biologisch in vitro und in vivo untersucht.

Department: Medical Radiochemistry

Contact: Dr. Stadlbauer, Sven, Sachse, Frederik

Requirements

  • Studium der Chemie
  • Gute Noten in organischer Synthesechemie
  • Fähigkeit sich in ein interdisziplinäres Wissenschaftler-Team einzugliedern
  • Bereitschaft zum Umgang mit Radioaktivität
  • Gute Kenntnisse der deutschen und englischen Sprache

Conditions

  • Beginn nach Absprache jederzeit möglich
  • Praktikumsdauer mind. 4 Wochen, mit möglichst täglicher Anwesenheit

Online application

Please apply online: english / german

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Materials for new solar power plants (Id 241)

Bachelor theses / Master theses / Diploma theses

Foto: Solar thermal power plant ©Copyright: @AbengoaTurmkraftwerke stellen die neueste Generation von Anlagen zur solarthermischen Elektroenergieerzeugung dar (s. Abbildung). Großflächige Spiegelanordnungen konzentrieren Sonnenlicht auf einen zentralen Absorber, wo es in Wärmeenergie umwandelt wird, die dann auf ein Wärmeträgermedium übertragen wird. Gegenüber der Photovoltaik hat die Solarthermie den inhärenten Vorteil, Energie zu speichern und bei Bedarf bereit zu stellen. Die Herausforderung für die weitere Erhöhung des Wirkungsgrades von Solarkraftwerken besteht in der Entwicklung von Werkstoffen mit einer Temperaturstabilität bis zu 800 °C an Luft.
Im Rahmen von Graduierungsarbeiten und Hilfstätigkeiten sollen thermisch stabile Beschichtungen für die Kernkomponenten von Solarturmkraftwerken entwickelt und getestet werden. Dabei kommen modernste in situ und ex situ Methoden wie Magnetronsputtern, Ellipsometrie, UV-vis-NIR-FTIR-Reflektometrie und Ramanspektroskopie zur Anwendung.
Zu diesem Themenbereich werden u. a. die folgenden Aufgabenstellungen angeboten:
i) Schichtabscheidung und Optimierung der optischen und elektrischen Eigenschaften von transparenten leitfähigen Oxiden für Solarkraftwerke;
ii) Entwicklung von neuartigen Absorber- und Wärmespeicherwerkstoffen für Solarkraftwerke;
iii) Design und Simulation von solarselektiven Beschichtungen für Solarkraftwerke.

Zur Charakterisierung der untersuchten Materialien stehen modernste in situ und ex situ Analysemethoden zur Verfügung. Die Arbeiten können jederzeit aufgenommen werden.

Department: Nanocomposite Materials

Contact: Dr. Krause, Matthias

Requirements

1. Studium der Werkstoffwissenschaften, Physik oder Chemie
2. Interesse, Freude und Befähigung für experimentelle wissenschaftliche Arbeit
3. Grundkenntnisse in Programmierung und sicherer Umgang mit Büro- und wissenschaftlicher Software
4. Sichere Englischsprachkenntnisse (fließend oder besser)

Conditions

Internationale Forschungsumgebung, ortsübliche Aufwandsentschädigung

Online application

Please apply online: english / german

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