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Postdoc in Optical and dynamic properties of mixed halide perovskites

Chalmers University of Technology

We are looking for a post-doctoral researcher to join our research project on mixed halide perovskites. This class of materials have seen a surge in activity over the last years thanks to their potential for applications in light harvesting and emission technologies. Compositional engineering through mixing on different sublattices is essential for achieving optimal performance.

The goals of this project are to predict the phase behavior and phase diagrams of these systems and to map out the associated electronic properties, including those of polarons and defects, as a function of composition and temperature. This will be achieved by combining electronic structure calculations with atomistic machine-learning models and molecular dynamics and Monte Carlo simulations.

You will join the groups of Prof. Paul Erhart and Asst. Prof. Julia Wiktor in the Condensed Matter and Materials Theory (CMM) division at the Physics department of Chalmers University of Technology. The CMM division comprises about 20 researchers, who combine theoretical, methodological and computational techniques, often in close collaboration with local and international experimental groups. The work in the division is characterized by a strong interplay between fundamental and applied research and this allows us to address pressing societal issues, e.g., related to sustainable energy or information technology. Method and software development are an important component of our research.

Major responsibilities
The project comprises several parts and depending on your expertise you can focus, e.g. on the development of models for these systems and the characterization of their phase behavior or the optical and vibrational properties of defects and polarons in these systems. To this end, you should have expertise in at least two of the following topics: electronic structures calculations including density functional theory, point defect physics/chemistry, molecular dynamics and Monte Carlo simulations, model construction for atomic scale simulations, and simulations of dynamic, vibrational and/or optical properties. In this context, you are expected to plan, conduct and analyze simulations, to interpret the results and to drive the progress of the project. As many of our workflows are based on Python, good command of this tool will be beneficial. We also encourage you to supervise Master and doctoral students and support you in this process.

Overall this project will enable you to deepen your understanding of physics and materials science, enable you to become proficient and/or upgrade your skills in computational methods, including machine learning techniques, in application-oriented research. It will also allow you to expand your knowledge of state-of-the-art software and data engineering techniques in an academic environment. Moreover, you will be able to work in a cross-disciplinary, collaborative environment and have ample opportunities to grow your professional network.

Position summary
Full-time temporary employment. The position is limited to a maximum of two years (1+1).

Qualifications
You should hold a PhD degree in physics, chemistry, materials science or a related discipline and have a strong interest in computational modeling  of materials with expertise in at least two of the following areas:

• density functional theory
• point defect physics/chemistry
• molecular dynamics and Monte Carlo simulations
• model construction for atomic scale simulations
• simulations of dynamic, vibrational and/or optical properties

As many of our workflows are based on Python, good command of this tool will be beneficial. You should enjoy working in a collaborative environment including interactions with both theoreticians and experimentalists.

Chalmers continuously strives to be an attractive employer. Equality and diversity are substantial foundations in all activities at Chalmers.

Our offer to you
Chalmers offers a cultivating and inspiring working environment in the dynamic city of Gothenburg.
Read more about working at Chalmers and our benefits for employees.

Application procedure
The application should be marked with Ref 20210297 and written in English. The application should be sent electronically and be attached as pdf-files, as below:

CV: (Please name the document as: CV, Surname, Ref. number) including:
• CV, include complete list of publications
• Previous teaching and pedagogical experiences
• Two references that we can contact.

Personal letter: (Please name the document as: Personal letter, Family name, Ref. number)

In your cover letter please address the following questions:
– What is your motivation for pursuing a post-doctoral position?
– Where do you see yourself in two to three years?

Describe your experience with scientific computing in particular with regard to the areas listed above:
– What was the objective of your PhD studies?
– What were the key results and how did they relate to specific research questions and experiments?
– What do you consider as your most developed skills?
– Which areas would you like to develop?

Describe your experience with computational methods:
– With which software packages have you worked and how would you describe your proficiency in the underlying methods?
– How experienced are you in high performance computing and numerical methods?

Other documents:
• Attested copies of completed education, grades and other certificates.

Please use the button at the foot of the page to reach the application form. The files may be compressed (zipped).

Application deadline: 1st October, 2021

For questions, please contact:
Professor Paul Erhart, erhart@chalmers.se
Assistant Professor Julia Wiktor, julia.wiktor@chalmers.se

*** Chalmers declines to consider all offers of further announcement publishing or other types of support for the recruiting process in connection with this position. ***


Department of Physics at Chalmers – home of the Graphene Flagship
Stimulated by major needs and challenges in science and a sustainable society, the ambition of the department of Physics is to foster a creative environment for academic research, learning and outreach. We provide a competitive advantage by linking our top-level international and interdisciplinary academic performance in the areas of material science, nanotechnology and energy research with world-leading industrial R&D&I projects. We address a wide array of experimental, computational, methodological and theoretical challenges, from fundamental physics research, through the development of new materials such as graphene to direct industrial projects generating new inventions. We have a strong learning commitment on all levels from undergraduate to PhD studies where physics meet engineering. We are situated in a stimulating and creative environment with newly renovated facilities. The department is the major part of Gothenburg Physics Centre – a collaboration between five departments at Chalmers and Gothenburg University.

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Chalmers University of Technology conducts research and education in engineering sciences, architecture, technology-related mathematical sciences, natural and nautical sciences, working in close collaboration with industry and society. The strategy for scientific excellence focuses on our six Areas of Advance; Energy, Health Engineering, Information and Communication Technology, Materials Science, Production and Transport. The aim is to make an active contribution to a sustainable future using the basic sciences as a foundation and innovation and entrepreneurship as the central driving forces. Chalmers has around 11,000 students and 3,000 employees. New knowledge and improved technology have characterised Chalmers since its foundation in 1829, completely in accordance with the will of William Chalmers and his motto: Avancez! 


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