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Oliver Ambacher
Oliver Ambacher
Gips-Schüle-Professur für Leistungselektronik, Universität Freiburg
Verifisert e-postadresse på inatech.uni-freiburg.de - Startside
Tittel
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Two-dimensional electron gases induced by spontaneous and piezoelectric polarization charges in N-and Ga-face AlGaN/GaN heterostructures
O Ambacher, J Smart, JR Shealy, NG Weimann, K Chu, M Murphy, ...
Journal of applied physics 85 (6), 3222-3233, 1999
37971999
Two dimensional electron gases induced by spontaneous and piezoelectric polarization in undoped and doped AlGaN/GaN heterostructures
O Ambacher, B Foutz, J Smart, JR Shealy, NG Weimann, K Chu, ...
Journal of applied physics 87 (1), 334-344, 2000
21822000
Growth and applications of group III-nitrides
O Ambacher
Journal of physics D: Applied physics 31 (20), 2653, 1998
21821998
Wireless sub-THz communication system with high data rate
S Koenig, D Lopez-Diaz, J Antes, F Boes, R Henneberger, A Leuther, ...
Nature photonics 7 (12), 977-981, 2013
16302013
Pyroelectric properties ofAl (In) GaN/GaN hetero-and quantum well structures
O Ambacher, J Majewski, C Miskys, A Link, M Hermann, M Eickhoff, ...
Journal of physics: condensed matter 14 (13), 3399, 2002
14372002
Evidence for nonlinear macroscopic polarization in III–V nitride alloy heterostructures
V Fiorentini, F Bernardini, O Ambacher
Applied physics letters 80 (7), 1204-1206, 2002
10572002
Optical constants of epitaxial AlGaN films and their temperature dependence
D Brunner, H Angerer, E Bustarret, F Freudenberg, R Höpler, R Dimitrov, ...
Journal of applied physics 82 (10), 5090-5096, 1997
8091997
Defect structure of epitaxial GaN films determined by transmission electron microscopy and triple-axis X-ray diffractometry
T Metzger, R Höpler, E Born, O Ambacher, M Stutzmann, R Stömmer, ...
Philosophical magazine A 77 (4), 1013-1025, 1998
6721998
Band gap, electronic structure, and surface electron accumulation of cubic and rhombohedral
PDC King, TD Veal, F Fuchs, CY Wang, DJ Payne, A Bourlange, H Zhang, ...
Physical Review B—Condensed Matter and Materials Physics 79 (20), 205211, 2009
5462009
Group III nitride and SiC based MEMS and NEMS: materials properties, technology and applications
V Cimalla, J Pezoldt, O Ambacher
Journal of Physics D: Applied Physics 40 (20), S19, 2007
4932007
Undoped AlGaN/GaN HEMTs for microwave power amplification
LF Eastman, V Tilak, J Smart, BM Green, EM Chumbes, R Dimitrov, H Kim, ...
IEEE Transactions on Electron Devices 48 (3), 479-485, 2001
4752001
Determination of the Al mole fraction and the band gap bowing of epitaxial films
H Angerer, D Brunner, F Freudenberg, O Ambacher, M Stutzmann, ...
Applied Physics Letters 71 (11), 1504-1506, 1997
4321997
Large free-standing GaN substrates by hydride vapor phase epitaxy and laser-induced liftoff
MKKMK Kelly, RPVRP Vaudo, VMPVM Phanse, LGL Görgens, ...
Japanese journal of applied physics 38 (3A), L217, 1999
4221999
Thermal stability and desorption of Group III nitrides prepared by metal organic chemical vapor deposition
O Ambacher, MS Brandt, R Dimitrov, T Metzger, M Stutzmann, RA Fischer, ...
Journal of Vacuum Science & Technology B: Microelectronics and Nanometer …, 1996
3861996
Sound velocity of thin films obtained by surface acoustic-wave measurements
C Deger, E Born, H Angerer, O Ambacher, M Stutzmann, J Hornsteiner, ...
Applied Physics Letters 72 (19), 2400-2402, 1998
3731998
Effects of solvent and annealing on the improved performance of solar cells based on poly (3-hexylthiophene): fullerene
M Al-Ibrahim, O Ambacher, S Sensfuss, G Gobsch
Applied Physics Letters 86 (20), 2005
3692005
Relation between absorption and crystallinity of poly (3-hexylthiophene)/fullerene films for plastic solar cells
U Zhokhavets, T Erb, G Gobsch, M Al-Ibrahim, O Ambacher
Chemical Physics Letters 418 (4-6), 347-350, 2006
2922006
Playing with polarity
M Stutzmann, O Ambacher, M Eickhoff, U Karrer, A Lima Pimenta, ...
physica status solidi (b) 228 (2), 505-512, 2001
2922001
Influence of substrate‐induced biaxial compressive stress on the optical properties of thin GaN films
W Rieger, T Metzger, H Angerer, R Dimitrov, O Ambacher, M Stutzmann
Applied physics letters 68 (7), 970-972, 1996
2851996
Gas sensitive GaN/AlGaN-heterostructures
J Schalwig, G Müller, M Eickhoff, O Ambacher, M Stutzmann
Sensors and Actuators B: Chemical 87 (3), 425-430, 2002
2772002
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