Markus R. Wagner

0000-0002-7367-5629

Other IDs:
ResearcherID: A-3582-2009
Scopus Author ID: 36111812100

Publications

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    Compensation effects in GaN:Mg probed by Raman spectroscopy and photoluminescence measurements: Journal of Applied Physics 2013

    DOI: 10.1063/1.4794094
    Kirste, R. and Hoffmann, M. P. and Tweedie, J. and Bryan, Z. and Callsen, G. and Kure, T. and Nenstiel, C. and Wagner, M. R. and Collazo, R. and Hoffmann, A. and Sitar, Z., (2013). "Compensation effects in GaN:Mg probed by Raman spectroscopy and photoluminescence measurements", Journal of Applied Physics, vol. 113, no. 10, pp. 5
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    Effect of TMGa preflow on the applications and materials science properties of high temperature AlN layers grown on sapphire: Physica Status Solidi a-Applications and Materials Science 2013

    DOI: 10.1002/pssa.201228506
    Kirste, R. and Wagner, M. R. and Nenstiel, C. and Brunner, F. and Weyers, M. and Hoffmann, A., (2013). "Effect of TMGa preflow on the applications and materials science properties of high temperature AlN layers grown on sapphire", Physica Status Solidi a-Applications and Materials Science, vol. 210, no. 2, pp. 285-290
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    Band-gap engineering of zinc oxide colloids via lattice substitution with sulfur leading to materials with advanced properties for optical applications like full inorganic UV protection: Chemistry of Materials 2012

    DOI: 10.1021/cm300239q
    Lehr, D. and Luka, M. and Wagner, M.R. and Bügler, M. and Hoffmann, A. and Polarz, S., (2012). "Band-gap engineering of zinc oxide colloids via lattice substitution with sulfur leading to materials with advanced properties for optical applications like full inorganic UV protection", Chemistry of Materials, vol. 24, no. 10, pp. 1771-1778
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    Optical signature of Mg-doped GaN: Transfer processes: Physical Review B - Condensed Matter and Materials Physics 2012

    DOI: 10.1103/PhysRevB.86.075207
    Callsen, G. and Wagner, M.R. and Kure, T. and Reparaz, J.S. and Bügler, M. and Brunnmeier, J. and Nenstiel, C. and Hoffmann, A. and Hoffmann, M. and Tweedie, J. and Bryan, Z. and Aygun, S. and Kirste, R. and Collazo, R. and Sitar, Z., (2012). "Optical signature of Mg-doped GaN: Transfer processes", Physical Review B - Condensed Matter and Materials Physics, vol. 86, no. 7
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    Optical signatures of nitrogen acceptors in ZnO: Physical Review B - Condensed Matter and Materials Physics 2012

    DOI: 10.1103/PhysRevB.85.235204
    Lautenschlaeger, S. and Eisermann, S. and Haas, G. and Zolnowski, E.A. and Hofmann, M.N. and Laufer, A. and Pinnisch, M. and Meyer, B.K. and Wagner, M.R. and Reparaz, J.S. and Callsen, G. and Hoffmann, A. and Chernikov, A. and Chatterjee, S. and Bornwasser, V. and Koch, M., (2012). "Optical signatures of nitrogen acceptors in ZnO", Physical Review B - Condensed Matter and Materials Physics, vol. 85, no. 23
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    Phonon plasmon interaction in ternary group-III-nitrides: Applied Physics Letters 2012

    DOI: 10.1063/1.4739415
    Kirste, R. and Mohn, S. and Wagner, M.R. and Reparaz, J.S. and Hoffmann, A., (2012). "Phonon plasmon interaction in ternary group-III-nitrides", Applied Physics Letters, vol. 101, no. 4
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    Assembly of carbon nanotubes and alkylated fullerenes: Nanocarbon hybrid towards photovoltaic applications: Chemical Science 2011

    DOI: 10.1039/c1sc00360g
    Shen, Y. and Reparaz, J.S. and Wagner, M.R. and Hoffmann, A. and Thomsen, C. and Lee, J.-O. and Heeg, S. and Hatting, B. and Reich, S. and Saeki, A. and Seki, S. and Yoshida, K. and Babu, S.S. and Möhwald, H. and Nakanishi, T., (2011). "Assembly of carbon nanotubes and alkylated fullerenes: Nanocarbon hybrid towards photovoltaic applications", Chemical Science, vol. 2, no. 11, pp. 2243-2250
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    Bound excitons in ZnO: Structural defect complexes versus shallow impurity centers: Physical Review B - Condensed Matter and Materials Physics 2011

    DOI: 10.1103/PhysRevB.84.035313
    Wagner, M.R. and Callsen, G. and Reparaz, J.S. and Schulze, J.-H. and Kirste, R. and Cobet, M. and Ostapenko, I.A. and Rodt, S. and Nenstiel, C. and Kaiser, M. and Hoffmann, A. and Rodina, A.V. and Phillips, M.R. and Lautenschläger, S. and Eisermann, S. and Meyer, B.K., (2011). "Bound excitons in ZnO: Structural defect complexes versus shallow impurity centers", Physical Review B - Condensed Matter and Materials Physics, vol. 84, no. 3
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    Decay dynamics of excitonic polarons in InAs/GaAs quantum dots: Journal of Applied Physics 2011

    DOI: 10.1063/1.3639310
    Werner, S. and Reparaz, J.S. and Wagner, M.R. and Zimmer, P. and Ledentsov, N.N. and Kabuss, J. and Dachner, M.R. and Richter, M. and Knorr, A. and Thomsen, C. and Hoffmann, A., (2011). "Decay dynamics of excitonic polarons in InAs/GaAs quantum dots", Journal of Applied Physics, vol. 110, no. 7
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    Phonon deformation potentials in wurtzite GaN and ZnO determined by uniaxial pressure dependent Raman measurements: Applied Physics Letters 2011

    DOI: 10.1063/1.3554434
    Callsen, G. and Reparaz, J.S. and Wagner, M.R. and Kirste, R. and Nenstiel, C. and Hoffmann, A. and Phillips, M.R., (2011). "Phonon deformation potentials in wurtzite GaN and ZnO determined by uniaxial pressure dependent Raman measurements", Applied Physics Letters, vol. 98, no. 6
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    Raman and photoluminescence spectroscopic detection of surface-bound Li +O 2 - defect sites in Li-doped ZnO nanocrystals derived from molecular precursors: ChemPhysChem 2011

    DOI: 10.1002/cphc.201000852
    Kirste, R. and Aksu, Y. and Wagner, M.R. and Khachadorian, S. and Jana, S. and Driess, M. and Thomsen, C. and Hoffmann, A., (2011). "Raman and photoluminescence spectroscopic detection of surface-bound Li +O 2 - defect sites in Li-doped ZnO nanocrystals derived from molecular precursors", ChemPhysChem, vol. 12, no. 6, pp. 1189-1195
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    Shape anisotropy influencing functional properties: Trigonal prismatic ZnO nanoparticles as an example: Advanced Functional Materials 2011

    DOI: 10.1002/adfm.201000997
    Lizandara-Pueyo, C. and Siroky, S. and Wagner, M.R. and Hoffmann, A. and Reparaz, J.S. and Lehmann, M. and Polarz, S., (2011). "Shape anisotropy influencing functional properties: Trigonal prismatic ZnO nanoparticles as an example", Advanced Functional Materials, vol. 21, no. 2, pp. 295-304
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    Temperature dependent photoluminescence of lateral polarity junctions of metal organic chemical vapor deposition grown GaN: Journal of Applied Physics 2011

    DOI: 10.1063/1.3656987
    Kirste, R. and Collazo, R. and Callsen, G. and Wagner, M.R. and Kure, T. and Sebastian Reparaz, J. and Mita, S. and Xie, J. and Rice, A. and Tweedie, J. and Sitar, Z. and Hoffmann, A., (2011). "Temperature dependent photoluminescence of lateral polarity junctions of metal organic chemical vapor deposition grown GaN", Journal of Applied Physics, vol. 110, no. 9
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    Titanium-assisted growth of silica nanowires: From surface-matched to free-standing morphologies: Nanotechnology 2011

    DOI: 10.1088/0957-4484/22/40/405604
    Callsen, G. and Reparaz, J.S. and Wagner, M.R. and Vierck, A. and Phillips, M.R. and Thomsen, C. and Hoffmann, A., (2011). "Titanium-assisted growth of silica nanowires: From surface-matched to free-standing morphologies", Nanotechnology, vol. 22, no. 40
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    Zinc Oxide: From Fundamental Properties Towards Novel Applications July-2010

    This book gives a comprehensive review of the present state of the art in ZnO R+D, including growth, doping, lattice dynamics, electric magnetic and optical properties. The emphasis is on the electric and optical properties, because this is the area where novel applications may be expected with highest promise. The book highlights not only the most recent results but gives both an overview of past research and of the present status -- not avoiding critical and controversial discussions of various aspects such as bank symmetries and laser processes. Intended to have long-lasting impact on ZnO R+D, this monograph addresses (post-)graduate students but also advanced scientists, who want to embark on ZnO research or are already involved, the present state of the art and assists them in avoiding duplication of old results (or mistakes).
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    Clebsch-Gordan coefficients for scattering tensors in ZnO and other wurtzite semiconductors: Physica Status Solidi (B) Basic Research 2010

    DOI: 10.1002/pssb.200945583
    Kunert, H.W. and Wagner, M.R. and Machatine, A.G.J. and Niyongabo, P. and Malherbe, J.B. and Hoffmann, A. and Barnaś, J. and Florek, W., (2010). "Clebsch-Gordan coefficients for scattering tensors in ZnO and other wurtzite semiconductors", Physica Status Solidi (B) Basic Research, vol. 247, no. 7, pp. 1802-1806
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    Excited state properties of donor bound excitons in ZnO: Physical Review B - Condensed Matter and Materials Physics 2010

    DOI: 10.1103/PhysRevB.82.115207
    Meyer, B.K. and Sann, J. and Eisermann, S. and Lautenschlaeger, S. and Wagner, M.R. and Kaiser, M. and Callsen, G. and Reparaz, J.S. and Hoffmann, A., (2010). "Excited state properties of donor bound excitons in ZnO", Physical Review B - Condensed Matter and Materials Physics, vol. 82, no. 11
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    Identification of a donor-related recombination channel in ZnO thin films: Physical Review B - Condensed Matter and Materials Physics 2010

    DOI: 10.1103/PhysRevB.81.073306
    Brandt, M. and Von Wenckstern, H. and Benndorf, G. and Lange, M. and Dietrich, C.P. and Kranert, C. and Sturm, C. and Schmidt-Grund, R. and Hochmuth, H. and Lorenz, M. and Grundmann, M. and Wagner, M.R. and Alic, M. and Nenstiel, C. and Hoffmann, A., (2010). "Identification of a donor-related recombination channel in ZnO thin films", Physical Review B - Condensed Matter and Materials Physics, vol. 81, no. 7
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    Influence of External Fields: Zinc Oxide: from Fundamental Properties Towards Novel Applications 2010

    Wagner, M. R. and Hoffmann, A., (2010). "Influence of External Fields", vol. 120, pp. 201-232
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    Lithium related deep and shallow acceptors in Li-doped ZnO nanocrystals: Journal of Applied Physics 2010

    DOI: 10.1063/1.3275889
    Rauch, C. and Gehlhoff, W. and Wagner, M.R. and Malguth, E. and Callsen, G. and Kirste, R. and Salameh, B. and Hoffmann, A. and Polarz, S. and Aksu, Y. and Driess, M., (2010). "Lithium related deep and shallow acceptors in Li-doped ZnO nanocrystals", Journal of Applied Physics, vol. 107, no. 2
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    Molecular precursor route to a metastable form of zinc oxide: Chemistry of Materials 2010

    DOI: 10.1021/cm101240n
    Lizandara Pueyo, C. and Siroky, S. and Landsmann, S. and Van Den Berg, M.W.E. and Wagner, M.R. and Reparaz, J.S. and Hoffmann, A. and Polarz, S., (2010). "Molecular precursor route to a metastable form of zinc oxide", Chemistry of Materials, vol. 22, no. 14, pp. 4263-4270
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    Optical properties of InN grown on templates with controlled surface polarities: Physica Status Solidi (A) Applications and Materials Science 2010

    DOI: 10.1002/pssa.201026086
    Kirste, R. and Wagner, M.R. and Schulze, J.H. and Strittmatter, A. and Collazo, R. and Sitar, Z. and Alevli, M. and Dietz, N. and Hoffmann, A., (2010). "Optical properties of InN grown on templates with controlled surface polarities", Physica Status Solidi (A) Applications and Materials Science, vol. 207, no. 10, pp. 2351-2354
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    Polariton effects in the dielectric function of ZnO excitons obtained by ellipsometry: Applied Physics Letters 2010

    DOI: 10.1063/1.3284656
    Cobet, M. and Cobet, C. and Wagner, M.R. and Esser, N. and Thomsen, C. and Hoffmann, A., (2010). "Polariton effects in the dielectric function of ZnO excitons obtained by ellipsometry", Applied Physics Letters, vol. 96, no. 3
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    Recombination dynamics in ZnO nanowires: Surfaces states versus mode quality factor: Applied Physics Letters 2010

    DOI: 10.1063/1.3496444
    Reparaz, J.S. and Güell, F. and Wagner, M.R. and Callsen, G. and Kirste, R. and Claramunt, S. and Morante, J.R. and Hoffmann, A., (2010). "Recombination dynamics in ZnO nanowires: Surfaces states versus mode quality factor", Applied Physics Letters, vol. 97, no. 13
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    Reduction of the transverse effective charge of optical phonons in ZnO under pressure: Applied Physics Letters 2010

    DOI: 10.1063/1.3447798
    Reparaz, J.S. and Muniz, L.R. and Wagner, M.R. and Goñi, A.R. and Alonso, M.I. and Hoffmann, A. and Meyer, B.K., (2010). "Reduction of the transverse effective charge of optical phonons in ZnO under pressure", Applied Physics Letters, vol. 96, no. 23
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    Size-dependent recombination dynamics in ZnO nanowires: Applied Physics Letters 2010

    DOI: 10.1063/1.3294327
    Reparaz, J.S. and Güell, F. and Wagner, M.R. and Hoffmann, A. and Cornet, A. and Morante, J.R., (2010). "Size-dependent recombination dynamics in ZnO nanowires", Applied Physics Letters, vol. 96, no. 5
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    A systematic study on zinc oxide materials containing group I metals (Li, Na, K)-synthesis from organometallic precursors, characterization and properties: Chemistry of Materials 2009

    DOI: 10.1021/cm9014223
    Polarz, M.S. and Orlov, A. and Hoffmann, A. and Wagner, M.R. and Rauch, C. and Kirste, R. and Gehlhoff, W. and Aksu, Y. and Driess, M. and Van Den Berg, M.W.E. and Lehmann, M., (2009). "A systematic study on zinc oxide materials containing group I metals (Li, Na, K)-synthesis from organometallic precursors, characterization and properties", Chemistry of Materials, vol. 21, no. 16, pp. 3889-3897
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    Bound and free excitons in ZnO. Optical selection rules in the absence and presence of time reversal symmetry: Microelectronics Journal 2009

    DOI: 10.1016/j.mejo.2008.07.025
    Wagner, M.R. and Kunert, H.W. and Machatine, A.G.J. and Hoffmann, A. and Niyongabo, P. and Malherbe, J. and Barnas, J., (2009). "Bound and free excitons in ZnO. Optical selection rules in the absence and presence of time reversal symmetry", Microelectronics Journal, vol. 40, no. 2, pp. 289-292
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    Influence of substrate surface polarity on homoepitaxial growth of ZnO layers by chemical vapor deposition: Physical Review B - Condensed Matter and Materials Physics 2009

    DOI: 10.1103/PhysRevB.79.035307
    Wagner, M.R. and Bartel, T.P. and Kirste, R. and Hoffmann, A. and Sann, J. and Lautenschläger, S. and Meyer, B.K. and Kisielowski, C., (2009). "Influence of substrate surface polarity on homoepitaxial growth of ZnO layers by chemical vapor deposition", Physical Review B - Condensed Matter and Materials Physics, vol. 79, no. 3
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    Nitrogen incorporation in homoepitaxial ZnO CVD epilayers: Physica Status Solidi - Rapid Research Letters 2009

    DOI: 10.1002/pssr.200802215
    Lautenschlaeger, S. and Eisermann, S. and Meyer, B.K. and Callison, G. and Wagner, M.R. and Hoffmann, A., (2009). "Nitrogen incorporation in homoepitaxial ZnO CVD epilayers", Physica Status Solidi - Rapid Research Letters, vol. 3, no. 1, pp. 16-18
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    Γ7 valence band symmetry related hole fine splitting of bound excitons in ZnO observed in magneto-optical studies: Physical Review B - Condensed Matter and Materials Physics 2009

    DOI: 10.1103/PhysRevB.80.205203
    Wagner, M.R. and Schulze, J.-H. and Kirste, R. and Cobet, M. and Hoffmann, A. and Rauch, C. and Rodina, A.V. and Meyer, B.K. and Röder, U. and Thonke, K., (2009). "Γ7 valence band symmetry related hole fine splitting of bound excitons in ZnO observed in magneto-optical studies", Physical Review B - Condensed Matter and Materials Physics, vol. 80, no. 20
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    Asymmetry in the excitonic recombinations and impurity incorporation of the two polar faces of homoepitaxially grown ZnO films: Physical Review B - Condensed Matter and Materials Physics 2008

    DOI: 10.1103/PhysRevB.77.144108
    Lautenschlaeger, S. and Sann, J. and Volbers, N. and Meyer, B.K. and Hoffmann, A. and Haboeck, U. and Wagner, M.R., (2008). "Asymmetry in the excitonic recombinations and impurity incorporation of the two polar faces of homoepitaxially grown ZnO films", Physical Review B - Condensed Matter and Materials Physics, vol. 77, no. 14
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    Elementary excitations in Si, Ge, and diamond time reversal affected: Thin Solid Films 2008

    DOI: 10.1016/j.tsf.2008.08.035
    Kunert, H.W. and Machatine, A.G.J. and Malherbe, J.B. and Barnas, J. and Hoffmann, A. and Wagner, M.R., (2008). "Elementary excitations in Si, Ge, and diamond time reversal affected", Thin Solid Films, vol. 517, no. 1, pp. 372-375
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    Infrared absorption, multiphonon processes and time reversal effect on Si and Ge band structure: Thin Solid Films 2008

    DOI: 10.1016/j.tsf.2008.08.033
    Kunert, H.W. and Machatine, A.G.J. and Malherbe, J.B. and Barnas, J. and Hoffmann, A. and Wagner, M.R., (2008). "Infrared absorption, multiphonon processes and time reversal effect on Si and Ge band structure", Thin Solid Films, vol. 517, no. 1, pp. 134-136
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    Optical and structural properties of homoepitaxial ZnO: Proceedings of SPIE - The International Society for Optical Engineering 2008

    DOI: 10.1117/12.775217
    Bartel, T.P. and Wagner, M.R. and Haboeck, U. and Hoffmann, A. and Neumann, C. and Lautenschläger, S. and Sann, J. and Meyer, B.K., (2008). "Optical and structural properties of homoepitaxial ZnO", Proceedings of SPIE - The International Society for Optical Engineering, vol. 6895
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    Ionized and neutral donor-bound excitons in ZnO: Physical Review B - Condensed Matter and Materials Physics 2007

    DOI: 10.1103/PhysRevB.76.184120
    Meyer, B.K. and Sann, J. and Lautenschläger, S. and Wagner, M.R. and Hoffmann, A., (2007). "Ionized and neutral donor-bound excitons in ZnO", Physical Review B - Condensed Matter and Materials Physics, vol. 76, no. 18
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    Phonons and electronic states of ZnO, Al 2O 3 and Ge in the presence of time reversal symmetry: Journal of Physics: Conference Series 2007

    DOI: 10.1088/1742-6596/92/1/012071
    MacHatine, A.G.J. and Kunert, H.W. and Hoffmann, A. and Malherbe, J.B. and Barnas, J. and Seguin, R. and Wagner, M.R. and Niyongabo, P. and Nephale, N., (2007). "Phonons and electronic states of ZnO, Al 2O 3 and Ge in the presence of time reversal symmetry", Journal of Physics: Conference Series, vol. 92, no. 1
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    Phonons in sapphire Al 2O 3 substrate for ZnO and GaN: Materials Science and Engineering C 2007

    DOI: 10.1016/j.msec.2006.08.014
    Kunert, H.W. and Machatine, A.G.J. and Hoffmann, A. and Kaczmarczyk, G. and Haboeck, U. and Malherbe, J. and Barnas, J. and Wagner, M.R. and Brink, J.D., (2007). "Phonons in sapphire Al 2O 3 substrate for ZnO and GaN", Materials Science and Engineering C, vol. 27, no. 5-8 SPEC. ISS., pp. 1222-1226
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    Photonic properties of ZnO epilayers: Proceedings of SPIE - The International Society for Optical Engineering 2007

    DOI: 10.1117/12.717785
    Wagner, M.R. and Haboeck, U. and Zimmer, P. and Hoffmann, A. and Lautenschläger, S. and Neumann, C. and Sann, J. and Meyer, B.K., (2007). "Photonic properties of ZnO epilayers", Proceedings of SPIE - The International Society for Optical Engineering, vol. 6474
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    Resonant Raman scattering at exciton intermediate states in ZnO: Physica Status Solidi - Rapid Research Letetrs 2007

    DOI: 10.1002/pssr.200701106
    Wagner, M.R. and Zimmer, P. and Hoffmann, A. and Thomsen, C., (2007). "Resonant Raman scattering at exciton intermediate states in ZnO", Physica Status Solidi - Rapid Research Letetrs, vol. 1, no. 5, pp. 169-171

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