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Vanya Darakchieva

Professor, Head of Unit

Publications

2025

Hengfang Zhang, Jr-Tai Chen, Alexis Papamichail, Ingemar Persson, Dat Tran, Plamen Paskov, Vanya Darakchieva (2025) Effect of substrate misorientation angle on the structural properties of N-polar GaN grown by hot-wall MOCVD on 4H-SiC(000(1)over-bar) Journal of Crystal Growth, Vol. 651, Article 127971 (Article in journal) Continue to DOI

2024

Adamantia Logotheti, Navya Sri Garigapati, Byeongchan So, Jovana Colvin, Vanya Darakchieva, Erik Lind (2024) Low Resistivity n-type GaN Ohmic Contacts on GaN Substrates Physica Status Solidi (a) applications and materials science (Article in journal) Continue to DOI
Bjorn Hult, Johan Bergsten, Ragnar Ferrand-Drake Del Castillo, Vanya Darakchieva, Anna Malmros, Hans Hjelmgren, Mattias Thorsell, Niklas Rorsman (2024) Characterization of Drain-Induced Barrier Lowering in GaN HEMTs Using a Drain Current Injection Technique IEEE Transactions on Electron Devices (Article in journal) Continue to DOI
Hui Zeng, Weimin Wang, Ivan Gueorguiev Ivanov, Vanya Darakchieva, Jianwu Sun (2024) Determination of the conduction and valence band offsets at the Co3O4/3C-SiC p-n heterojunction Applied Physics Letters, Vol. 125, Article 162102 (Article in journal) Continue to DOI
Alyssa Mock, Steffen Richter, Alexis Papamichail, Vallery Stanishev, Misagh Ghezellou, Jawad Ul-Hassan, Andreas Popp, Saud Bin Anooz, Daniela Gogova-Petrova, Praneeth Ranga, Sriram Krishnamoorthy, Rafal Korlacki, Mathias Schubert, Vanya Darakchieva (2024) Effective uniaxial dielectric function tensor and optical phonons in (¯2⁢01)-oriented ��-Ga2⁢O3 films with equally distributed sixfold-rotation domains Physical Review Applied, Vol. 22, Article 044003 (Article in journal) Continue to DOI

Research

Semiconductor Device Materials

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

News

Two pipettes poring liquids on to a disk.

Research for a sustainable future in ten new projects

Photosynthetic materials, two-dimensional noble metals and sustainable semiconductors are some of the projects at LiU that have been granted funding from the research programme Wallenberg initiative materials science for sustainability – WISE.
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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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