The rapid development in nanofabrication techniques in recent years has made it realistic to nanostructure graphene to tailor its properties for specific applications. One particular way to nanostructure graphene is to dope it selectively: experiments have shown that under certain conditions substitutional doping occurs very asymmetrically with regard to the two sublattices which form the graphene lattice. This opens many new ways to fine tune graphene’s electronic transport properties.
The aim of the PhD project is to simulate and study, theoretically, the properties of asymmetrically doped graphene, and other novel two-dimensional materials (phosphorene, boron nitride, transition metal dichalcogenides, etc). We aim to explore the new concept of “doping-profile engineering”. Particular focus needs to be paid to disorder, and computationally efficient simulations techniques are needed because the low concentration of dopands necessitates the consideration of systems consisting of millions of atoms. A possible theoretical approach is the “patched Green’s function technique”, which has recently been developed at DTU Nanotech.
Responsibilities and tasks
The PhD project will involve developing and implementing methods for studying nanostructured graphene with a large number of dopand atoms. This includes large-scale numerical methods for calculation of the conductivity of disordered structures with several millions of atoms. The methods will be used to study the properties of selectively doped graphene in external fields, with a focus on fundamental properties as well as possible applications. Ultimately the project should lead to suggestions for experiments, to be carried out by colleagues at DTU Nanotech.
The position requires a strong background in theoretical solid state physics, preferably with experience in implementing tight-binding models and methods capable of handling very large-scale systems. Knowledge and experience with a programming language capable of high-performance numerical simulations is required.
Qualifications
Candidates should have a master's degree in engineering or a similar degree with an academic level equivalent to the master's degree in engineering.
Approval and Enrolment
The scholarships for the PhD degree are subject to academic approval, and the candidates will be enrolled in one of the general degree programmes of DTU. For information about the general requirements for enrolment and the general planning of the scholarship studies, please see the DTU PhD Guide.
Assessment
The assessment of the applicants will be made by Professor Antti-Pekka Jauho and Postdoc Stephen Power.
We offer
We offer an interesting and challenging job in an international environment focusing on education, research, public-sector consultancy and innovation, which contribute to enhancing the economy and improving social welfare. We strive for academic excellence, collegial respect and freedom tempered by responsibility. The Technical University of Denmark (DTU) is a leading technical university in northern Europe and benchmarks with the best universities in the world.
Salary and appointment terms
The salary and appointment terms are consistent with the current rules for PhD degree students. The period of employment is 3 years.
Further information
Further information may be obtained from Professor Antti-Pekka Jauho, email: antti@nanotech.dtu.dk.
You can read more about DTU Nanotech on www.nanotech.dtu.dk, and about research on graphene on the homepage of the center-of-excellence for nanostructured graphene, CNG: www.cng.dtu.dk.
Application
Please submit your online application no later than April 15, 2015. Applications must be submitted as one pdf file containing all materials to be given consideration. To apply, please open the link "Apply online," fill in the online application form, and attach all your materials in English in one pdf file. The file must include:
- A letter motivating the application (cover letter)
- Curriculum vitae
- Grade transcripts and BSc/MSc diploma
- Excel sheet with translation of grades to the Danish grading system (see guidelines and excel spreadsheet here)
Candidates may apply prior to obtaining their master's degree, but cannot begin before having received it.
All interested candidates irrespective of age, gender, race, disability, religion or ethnic background are encouraged to apply.
DTU Nanotech - the Department of Micro- and Nanotechnology - is situated in the northern part of Copenhagen. DTU Nanotech is a centre of excellence in micro- and nanotechnology utilising sciences across the traditional boundaries of technology, thereby enabling innovative solutions for the benefit of society. DTU Nanotech has approx. 220 staff members. With 40 % international employees, the department constitutes an international environment.
DTU is a technical university providing internationally leading research, education, innovation and public service. Our staff of 5,700 advance science and technology to create innovative solutions that meet the demands of society; and our 10,000 students are being educated to address the technological challenges of the future. DTU is an independent academic university collaborating globally with business, industry, government, and public agencies.
Comments