Science of polar homo- and heterointerfaces

• Antragsteller: Dr. Martin Albrecht; Professor Dr. Axel Hoffmann
• Fachliche Zuordnung: Elektronische Halbleiter, Bauelemente und Schaltungen, Integrierte Systeme, Sensorik, Theoretische Elektrotechnik ; Experimentelle Physik der kondensierten Materie
• Förderung: Förderung von 2012 bis 2016
• Projektkennung: Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 198775133

• Erstellungsjahr: 2021

Keine Zusammenfassung vorhanden

Projektbezogene Publikationen (Auswahl)

• Temperature dependent photoluminescence of lateral polarity junctions of metal organic chemical vapor deposition grown GaN, J. Appl. Phys. 110, (2011) 093503
  Kirste, Ronny; Collazo, Ramón; Callsen, Gordon; Wagner, Markus R.; Kure, Thomas; Sebastian Reparaz, Juan; Mita, Seji; Xie, Jinqiao; Rice, Anthony; Tweedie, James; Sitar, Zlatko & Hoffmann, Axel
  
• The optical signature of Mg doped GaN: Transfer processes, Phys. Rev. B 86 (2012), 075207
  Callsen, G.; Wagner, M. R.; Kure, T.; Reparaz, J. S.; Bügler, M.; Brunnmeier, J.; Nenstiel, C.; Hoffmann, A.; Hoffmann, M.; Tweedie, J.; Bryan, Z.; Aygun, S.; Kirste, R.; Collazo, R. & Sitar, Z.
  
• Compensation effects in GaN: Mg probed by Raman spectroscopy and photoluminescence measurements, J. Appl. Phys. 113 (2013), 203504
  Kirste, Ronny; Hoffmann, Marc P.; Tweedie, James; Bryan, Zachary; Callsen, Gordon; Kure, Thomas; Nenstiel, Christian; Wagner, Markus R.; Collazo, Ramón; Hoffmann, Axel & Sitar, Zlatko
  
• Ge doped GaN with controllable high carrier concentration for plasmonic applications, Appl. Phys. Lett. 103 (2013), 242107
  Kirste, Ronny; Hoffmann, Marc P.; Sachet, Edward; Bobea, Milena; Bryan, Zachary; Bryan, Isaac; Nenstiel, Christian; Hoffmann, Axel; Maria, Jon-Paul; Collazo, Ramón & Sitar, Zlatko
  
• Phonon pressure coefficients and deformation potentials of wurtzite AlN determined by uniaxial pressuredependent Raman measurements, Phys. Rev. B 90 (2014), 205206
  Callsen, G.; Wagner, M. R.; Reparaz, J. S.; Nippert, F.; Kure, T.; Kalinowski, S.; Hoffmann, A.; Ford, M. J.; Phillips, M. R.; Dalmau, R. F.; Schlesser, R.; Collazo, R. & Sitar, Z.
  
• Properties of AlN based lateral polarity structures, phys. stat. sol. (c) 11 (2014), 261
  Kirste, Ronny; Mita, Seiji; Hoffmann, Marc P.; Hussey, Lindsay; Guo, Wei; Bryan, Isaac; Bryan, Zachary; Tweedie, James; Gerhold, Michael; Hoffmann, Axel; Collazo, Ramón & Sitar, Zlatko
  
• A conduction model for contacts to Si-doped AlGaN grown on sapphire and single-crystalline AlN, J. Appl. Phys. 117 (2015), 245702
  Haidet, Brian B.; Bryan, Isaac; Reddy, Pramod; Bryan, Zachary; Collazo, Ramón & Sitar, Zlatko
  
• Charge neutrality levels, barrier heights, and band offsets at polar AlGaN. Appl. Phys. Lett. 107 (2015), 091603
  Reddy, Pramod; Bryan, Isaac; Bryan, Zachary; Tweedie, James; Washiyama, Shun; Kirste, Ronny; Mita, Seiji; Collazo, Ramon & Sitar, Zlatko
  
• Fabrication of vertical Schottky barrier diodes on n-type freestanding AlN substrates grown by hydride vapor phase epitaxy, Applied Physics Express. 8 (2015), 061003
  Kinoshita, Toru; Nagashima, Toru; Obata, Toshiyuki; Takashima, Shinya; Yamamoto, Reo; Togashi, Rie; Kumagai, Yoshinao; Schlesser, Raoul; Collazo, Ramόn; Koukitu, Akinori & Sitar, Zlatko
  
• Correlation between mobility collapse and carbon impurities in Si-doped GaN grown by low pressure metalorganic chemical vapor deposition, J. Appl. Phys. 120 (2016), 105701
  Kaess, Felix; Mita, Seiji; Xie, Jingqiao; Reddy, Pramod; Klump, Andrew; Hernandez-Balderrama, Luis H.; Washiyama, Shun; Franke, Alexander; Kirste, Ronny; Hoffmann, Axel; Collazo, Ramón & Sitar, Zlatko
  
• Fabrication and structural properties of AlN submicron periodic lateral polar structures and waveguides for UV-C applications, Appl. Phys. Lett. 108 (2016), 261106
  Alden, D.; Guo, W.; Kirste, R.; Kaess, F.; Bryan, I.; Troha, T.; Bagal, A.; Reddy, P.; Hernandez-Balderrama, Luis H.; Franke, A.; Mita, S.; Chang, C.-H.; Hoffmann, A.; Zgonik, M.; Collazo, R. & Sitar, Z.
  
• High temperature and low pressure chemical vapor deposition of silicom nitride on AlGaN : Band offsets and passivation studies, J. Appl. Phys. 119 (2016), 145702
  Reddy, Pramod; Washiyama, Shun; Kaess, Felix; Hayden Breckenridge, M.; Hernandez-Balderrama, Luis H.; Haidet, Brian B.; Alden, Dorian; Franke, Alexander; Sarkar, Biplab; Kohn, Erhard; Collazo, Ramon & Sitar, Zlatko
  
• On the origin of the 4.7 eV absorption and 2.8 eV emission bands in bulk AlN substrates, CS Trans. 72 (2016 ), 31
  Alden, Dorian; Bryan, Zachary; Gaddy, Benjamin; Bryan, Isaac; Callsen, Gordon; Koukitu, Akinori; Kumagai, Yoshinao; Hoffmann, Axel; Irving, Doug; Sitar, Zlatko & Collazo, Ramon
  
• Polarity control in group-III nitrides beyond pragmatism, Phys. Rev. Appl. 5 (2016), 054004
  Mohn, Stefan; Stolyarchuk, Natalia; Markurt, Toni; Kirste, Ronny; Hoffmann, Marc P.; Collazo, Ramón; Courville, Aimeric; Di Felice, Rosa; Sitar, Zlatko; Vennéguès, Philippe & Albrecht, Martin
  
• Surface kinetics in AlN growth: A universal model for the control of surface morphology in III- nitrides, Journal of Crystal Growth 438 (2016), 81
  Bryan, Isaac; Bryan, Zachary; Mita, Seiji; Rice, Anthony; Tweedie, James; Collazo, Ramón & Sitar, Zlatko
  
• UV second harmonic generation in AlN waveguides with modal phase matching, Opt. Mater. Express. 6 (2016), 2014
  Troha, T.; Rigler, M.; Alden, D.; Bryan, I.; Guo, W.; Kirste, R.; Mita, S.; Gerhold, M. D.; Collazo, R.; Sitar, Z. & Zgonik, M.
  
• Impact of sapphire nitridation on formation of Al-polar inversion domains in N-polar AlN epitaxial layers, J. Appl. Phys. 122, 155303 (2017)
  Stolyarchuk, N.; Markurt, T.; Courville, A.; March, K.; Tottereau, O.; Vennéguès, P. & Albrecht, M.
  
• Intentional polarity conversion of AlN epitaxial layers by oxygen, Scientific Reports 8, 14111 (2018)
  Stolyarchuk, N.; Markurt, T.; Courville, A.; March, K.; Zúñiga-Pérez, J.; Vennéguès, P. & Albrecht, M.
  
• Point-defect nature of the ultraviolet absorption band in AlN, Phys. Rev. Appl. 9 (2018), 054036
  Alden, D.; Harris, J. S.; Bryan, Z.; Baker, J. N.; Reddy, P.; Mita, S.; Callsen, G.; Hoffmann, A.; Irving, D. L.; Collazo, R. & Sitar, Z.
  
• Quasi-phase-matched second harmonic generation of UV light using AlN waveguides, Appl. Phys. Lett. 114 (2019), 103504
  Alden, Dorian; Troha, Tinkara; Kirste, Ronny; Mita, Seiji; Guo, Qiang; Hoffmann, Axel; Zgonik, Marko; Collazo, Ramón & Sitar, Zlatko