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Vanya Darakchieva

Professor, Head of Unit

Presentation

Publications

2024

Balasubramanian Sundarapandian, Dat Tran, Lutz Kirste, Patrik Stranak, Andreas Graff, Mario Prescher, Akash Nair, Mohit Raghuwanshi, Vanya Darakchieva, Plamen Paskov, Oliver Ambacher (2024) Comparison of aluminum nitride thin films prepared by magnetron sputter epitaxy in nitrogen and ammonia atmosphere Applied Physics Letters, Vol. 124, Article 182101 Continue to DOI
Ragnar Ferrand-Drake Del Castillo, Ding-Yuan Chen, Jr-Tai Chen, Mattias Thorsell, Vanya Darakchieva, Niklas Rorsman (2024) Characterization of Trapping Effects Related to Carbon Doping Level in AlGaN Back-Barriers for AlGaN/GaN HEMTs IEEE Transactions on Electron Devices Continue to DOI
Anders Gustafsson, Axel Persson, Per O A Persson, Vanya Darakchieva, Zhaoxia Bi, Lars Samuelson (2024) Cathodoluminescence investigations of dark-line defects in platelet-based InGaN nano-LED structures Nanotechnology, Vol. 35, Article 255703 Continue to DOI
Daniela Gogova-Petrova, Dat Tran, Vallery Stanishev, Valdas Jokubavicius, L. Vines, M. Schubert, Rositsa Yakimova, Plamen Paskov, Vanya Darakchieva (2024) High crystalline quality homoepitaxial Si-doped β-Ga2O3(010) layers with reduced structural anisotropy grown by hot-wall MOCVD Journal of Vacuum Science & Technology. A. Vacuum, Surfaces, and Films, Vol. 42, Article 022708 Continue to DOI
Nerijus Armakavicius, Sean Robert Knight, Philipp Kuhne, Vallery Stanishev, Dat Tran, Steffen Richter, Alexis Papamichail, Megan Stokey, Preston Sorensen, Ufuk Kilic, Mathias Schubert, Plamen Paskov, Vanya Darakchieva (2024) Electron effective mass in GaN revisited: New insights from terahertz and mid-infrared optical Hall effect APL Materials, Vol. 12, Article 021114 Continue to DOI

Research

Semiconductor Device Materials

Our research focuses on the development of novel semiconductor materials for high-frequency and power electronics.

News

Johanna Rosén and colleague in the lab

SEK 68 million for research into new materials

Materials scientists Vaya Darakchieva and Johanna Rosén have each been awarded over SEK 30 million from the Swedish Foundation for Strategic Research. They aim to develop new materials for more efficient energy systems.
Teraherz-labbet

Unique instrument shines through most everything

Low-frequency light reveals internal structures and properties in all conceivable materials. A research team at LiU has built a one-of-a-kind spectrometer that analyses samples with electromagnetic waves in the terahertz range.
Ångströmhuset - electron microscopy

30 millions to research infrastructure

Vanya Darakchieva and Per Persson, both at IFM, Department of Physics, Chemistry and Biology, each receive 15 million from SSF for the expansion of research infrastructure at LiU.

Organisation

A light-green thin sheet is immersed in water.

Semiconductor Materials (HALV)

Our division develops and investigates materials for novel electronics with the main focus on silicon carbide, III-nitrides and graphene.

Department of Physics, Chemistry and Biology (IFM)

Undergraduate teaching and research in the areas of biology, chemistry, materials and applied physics and theory and modelling are conducted at this department.

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