Vanya Darakchieva
Professor, Coordinator Materials Science
Research:
Coming soon
Teaching:
Coming soon
Publications
Displaying of publications. Sorted by year, then title.
Low Al-content n-type AlxGa1−xN layers with a high-electron-mobility grown by hot-wall metalorganic chemical vapor deposition
Vallery Stanishev, Nerijus Armakavicius, Daniela Gogova, Muhammad Nawaz, Niklas Rorsman, et al.
(2023) Vacuum, 217
Journal articleThermal conductivity of ScxAl1−xN and YxAl1−xN alloys
Dat Q. Tran, Ferenc Tasnádi, Agnė Žukauskaitė, Jens Birch, Vanya Darakchieva, et al.
(2023) Applied Physics Letters, 122
Journal articleTuning composition in graded AlGaN channel HEMTs toward improved linearity for low-noise radio-frequency amplifiers
A. Papamichail, A. R. Persson, S. Richter, P. Kühne, V. Stanishev, et al.
(2023) Applied Physics Letters, 122
Journal articleHigh-quality N-polar GaN optimization by multi-step temperature growth process
Hengfang Zhang, Tai Chen Jr., Alexis Papamichail, Ingemar Persson, Plamen P. Paskov, et al.
(2023) Journal of Crystal Growth, 603
Journal articlePolarity Control by Inversion Domain Suppression in N-Polar III-Nitride Heterostructures
Hengfang Zhang, Ingemar Persson, Tai Chen Jr., Alexis Papamichail, Dat Q. Tran, et al.
(2023) Crystal Growth and Design, 23 p.1049-1056
Journal articleTuning of Quasi-Vertical GaN FinFETs Fabricated on SiC Substrates
Philipp Gribisch, Rosalia Delgado Carrascon, Vanya Darakchieva, Erik Lind
(2023) IEEE Transactions on Electron Devices, 70 p.2408-2414
Journal articleCorrelating cathodoluminescence and scanning transmission electron microscopy for InGaN platelet nano-LEDs
Axel R. Persson, Anders Gustafsson, Zhaoxia Bi, Lars Samuelson, Vanya Darakchieva, et al.
(2023) Applied Physics Letters, 123
Journal articleDoped semiconducting polymer nanoantennas for tunable organic plasmonics
Akchheta Karki, Yu Yamashita, Shangzhi Chen, Tadanori Kurosawa, Jun Takeya, et al.
(2022) Communications Materials, 3
Journal articleStrain and Composition Dependencies of the Near-Band-Gap Optical Transitions in Monoclinic (AlxGa1−x)2O3 Alloys with Coherent Biaxial In-Plane Strain on Ga2O3(010)
Rafał Korlacki, Matthew Hilfiker, Jenna Knudtson, Megan Stokey, Ufuk Kilic, et al.
(2022) Physical Review Applied, 18
Journal articleEnhancement of 2DEG effective mass in AlN/Al0.78Ga0.22N high electron mobility transistor structure determined by THz optical Hall effect
Philipp Kühne, Nerijus Armakavicius, Alexis Papamichail, Dat Q. Tran, Vallery Stanishev, et al.
(2022) Applied Physics Letters, 120
Journal articleMg-doping and free-hole properties of hot-wall MOCVD GaN
A. Papamichail, A. Kakanakova-Georgieva, E. Sveinbjörnsson, A. R. Persson, B. Hult, et al.
(2022) Journal of Applied Physics, 131
Journal articleEpitaxial growth of β -Ga 2 O 3 by hot-wall MOCVD
Daniela Gogova, Misagh Ghezellou, Dat Q. Tran, Steffen Richter, Alexis Papamichail, et al.
(2022) AIP Advances, 12 p.055022-055022
Journal articleTerahertz electron paramagnetic resonance generalized spectroscopic ellipsometry : The magnetic response of the nitrogen defect in 4H-SiC
Mathias Schubert, Sean Knight, Steffen Richter, Philipp Kühne, Vallery Stanishev, et al.
(2022) Applied Physics Letters, 120
Journal articleInfrared-active phonon modes and static dielectric constants in -(AlxGa 1-x)2O3(0.18 ≤ x ≤ 0.54) alloys
Megan Stokey, Teresa Gramer, Rafał Korlacki, Sean Knight, Steffen Richter, et al.
(2022) Applied Physics Letters, 120
Journal articleOn the polarity determination and polarity inversion in nitrogen-polar group III-nitride layers grown on SiC
Hengfang Zhang, Ingemar Persson, Alexis Papamichail, Tai Chen, P. O.A. Persson, et al.
(2022) Journal of Applied Physics, 131
Journal articleLinear strain and stress potential parameters for the three fundamental band to band transitions in β-Ga2O3
R. Korlacki, J. Knudtson, M. Stokey, M. Hilfiker, V. Darakchieva, et al.
(2022) Applied Physics Letters, 120
Journal articleInfrared dielectric functions and Brillouin zone center phonons of
Megan Stokey, Rafał Korlacki, Matthew Hilfiker, Sean Knight, Steffen Richter, et al.
(2022) Physical Review Materials, 6
Journal articleIncorporation of Magnesium into GaN Regulated by Intentionally Large Amounts of Hydrogen during Growth by MOCVD
Anelia Kakanakova-Georgieva, Alexis Papamichail, Vallery Stanishev, Vanya Darakchieva
(2022) Physica Status Solidi (B) Basic Research, 259
Journal articleHot-Wall MOCVD for High-Quality Homoepitaxy of GaN : Understanding Nucleation and Design of Growth Strategies
Rosalia Delgado Carrascon, Steffen Richter, Muhammad Nawaz, Plamen P. Paskov, Vanya Darakchieva
(2022) Crystal Growth and Design, 22 p.7021-7030
Journal articleMg segregation at inclined facets of pyramidal inversion domains in GaN:Mg
Axel Person, Alexis Papamichail, Vanya Darakchieva, Per Persson
(2022) Scientific Reports, 12
Journal articleThermal conductivity of AlxGa1−xN (0≤x≤1) epitaxial layers
Dat Q. Tran, Rosalia D. Carrascon, Motoaki Iwaya, Bo Monemar, Vanya Darakchieva, et al.
(2022) Physical Review Materials, 6
Journal articleElectrical Tuning of Plasmonic Conducting Polymer Nanoantennas
Akchheta Karki, Giancarlo Cincotti, Shangzhi Chen, Vallery Stanishev, Vanya Darakchieva, et al.
(2022) Advanced Materials, 34
Journal articleThe 2022 magneto-optics roadmap
Alexey Kimel, Anatoly Zvezdin, Sangeeta Sharma, Samuel Shallcross, Nuno de Sousa, et al.
(2022) Journal Physics D: Applied Physics, 55
Journal article reviewTi thin films deposited by high-power impulse magnetron sputtering in an industrial system: Process parameters for a low surface roughness
Nyasha J. Sulial, William E. Goosen, Arno Janse van Vuuren, Ezra J. Olivier, Babak Bakhit, et al.
(2022) Vacuum, 195
Journal articleImpact of in situ NH3 pre-treatment of LPCVD SiN passivation on GaN HEMT performance
Ding-Yuan Chen, Axel R Persson, Kai-Hsin Wen, Daniel Sommer, Jan Grünenpütt, et al.
(2022) Semiconductor Science and Technology, 37
Journal articleCompositionally graded channel HEMTs towards improved linearity for low-noise RF amplifiers
Alexis Papamichail, Axel R. Persson, Steffen Ricther, Philipp Kuhne, Per O.A. Persson, et al.
(2022) 2022 Compound Semiconductor Week, CSW 2022
Conference paperCritical view on buffer layer formation and monolayer graphene properties in high-temperature sublimation
Vallery Stanishev, Nerijus Armakavicius, Chamseddine Bouhafs, Camilla Coletti, Philipp Kühne, et al.
(2021) Applied Sciences (Switzerland), 11 p.1-16
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