PhD scholarship in Selective Epitaxy of III-V/Si Nanostructures for Extreme Dielectric Confinement of Light

Tuesday 22 Jun 21

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The Department of Photonics Engineering at the Technical University of Denmark (DTU) is seeking an outstanding candidate for a PhD position. The position is within the Center for Nanophotonics (NanoPhoton), dedicated to exploring new possibilities for Extreme Dielectric Confinement (EDC) of light in semiconductors to length scales much smaller than the diffraction limit as well as their integration with transistors. NanoPhoton addresses several research disciplines and is a collaboration between a number of Departments at DTU, enabled by a Center grant from the Danish National Research Foundation.

This particular PhD project is dedicated to the development of advanced epitaxial growth methods [1,2] to realize III-V semiconductor nanodevices monolithically integrated on Si. The project will be carried out in a strong collaboration between DTU and IBM Research Europe - Zurich, where the PhD student will spend up to 50% of his/her working time.

  1. Schmid, H. et al. Template-assisted selective epitaxy of III-V nanoscale devices for co-planar heterogeneous integration with Si. Appl. Phys. Lett. 106, (2015).
  2. Viazmitinov, D. V. et al. Monolithic integration of InP on Si by molten alloy driven selective area epitaxial growth. Nanoscale 12, 23780–23788 (2020).

 Responsibilities and qualifications
As a PhD student, you will be working closely with other members of the NanoPhoton team and will be responsible for the development of a defect-free epitaxial technique of III-V compound semiconductors on Si. More specifically, this will include:

  • Developing and applying new methods within metal organic vapor epitaxy of defect-free III-V semiconductors on Si
  • Investigation of nucleation processes of III-V on Si surface and following epitaxial growth
  • Characterization of epitaxial material using XRD, PL, SEM, and AFM
  • Nanofabrication, in particular realization of a 3D mask for template assisted epitaxy
  • Fabrication and characterization of photo-electronic devices from the grown epi-material in collaboration with other members of the NanoPhoton team.

You must have a two-year master's degree (120 ECTS points) or a similar degree with an academic level equivalent to a two-year master's degree. We are looking for a PhD student with strong background in condensed matter physics, who has excelled in their studies and is now interested in working at the forefront of a new research field. Experience in nanofabrication is an advantage and good skills in written and spoken English are mandatory. 

Approval and Enrolment
The scholarship for the PhD degree is subject to academic approval, and the candidate will be enrolled in one of the general degree programmes at DTU. For information about our enrolment requirements and the general planning of the PhD study programme, please see the DTU PhD Guide.

The assessment of the applicants will be made by Prof. Jesper Mørk, Prof. Kresten Yvind and Senior Researcher Elizaveta Semenova.

We offer
DTU is a leading technical university globally recognized for the excellence of its research, education, innovation, and scientific advice. We offer a rewarding and challenging job in an international environment. We strive for academic excellence in an environment characterized by collegial respect and academic freedom tempered by responsibility.

Salary and appointment terms
The appointment will be based on the collective agreement with the Danish Confederation of Professional Associations. The allowance will be agreed upon with the relevant union. The period of employment is 3 years. 

You can read more about career paths at DTU here

Further information
Further information may be obtained from the NanoPhoton Center Leader, Prof. Jesper Mørk, tel.: +45 4525 5765. 

You can read more about NanoPhoton at and DTU Fotonik at

If you are applying from abroad, you may find useful information on working in Denmark and at DTU at DTU – Moving to Denmark

Application procedure
Your complete online application must be submitted no later than 15 August 2021 (local time)Applications must be submitted as one PDF file containing all materials to be given consideration. To apply, please open the link "Apply online", fill out 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
  • A recommendation letter
  • Excel sheet with translation of grades to the Danish grading system (see guidelines and Excel spreadsheet here)

You may apply prior to ob­tai­ning your 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.

The research vision of NanoPhoton - Center for Nanophotonics – is to explore the hitherto inaccessible regime of extreme dielectric confinement of light in optical cavities and to apply the associated enhanced light-matter interaction to solve fundamental outstanding challenges in chipscale information technology. To this end, we will develop the science and technology for a new class of optical nanostructures by combining fundamental electromagnetic and quantum optical theory with state-of-the-art nanofabrication and advanced experimental characterization techniques. 

Technology for people
DTU develops technology for people. With our international elite research and study programmes, we are helping to create a better world and to solve the global challenges formulated in the UN’s 17 Sustainable Development Goals. Hans Christian Ørsted founded DTU in 1829 with a clear vision to develop and create value using science and engineering to benefit society. That vision lives on today. DTU has 12,900 students and 6,000 employees. We work in an international atmosphere and have an inclusive, evolving, and informal working environment. DTU has campuses in all parts of Denmark and in Greenland, and we collaborate with the best universities around the world.