TITLE

Surface electronic structure of ZrB2 buffer layers for GaN growth on Si wafers

AUTHOR(S)
Yamada-Takamura, Yukiko; Bussolotti, Fabio; Fleurence, Antoine; Bera, Sambhunath; Friedlein, Rainer
PUB. DATE
August 2010
SOURCE
Applied Physics Letters;8/16/2010, Vol. 97 Issue 7, p073109
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The electronic structure of epitaxial, predominantly single-crystalline thin films of zirconium diboride (ZrB2), a lattice-matching, conductive ceramic to GaN, grown on Si(111) was studied using angle-resolved ultraviolet photoelectron spectroscopy. The existence of Zr-derived surface states dispersing along the Γ-M direction indicates a metallic character provided by a two-dimensional Zr-layer at the surface. Together with the measured work function, the results demonstrate that the surface electronic properties of such thin ZrB2(0001) buffer layers are comparable to those of the single crystals promising excellent conduction between nitride layers and the substrate in vertical light-emitting diodes on economic substrates.
ACCESSION #
52997937

 

Related Articles

  • Initial stages of the growth and magnetic properties of cobalt films on the Si(100)2 × 1 surface. Pronin, I.; Gomoyunova, M.; Solov'ev, S.; Vilkov, O.; Vyalikh, D. // Physics of the Solid State;Mar2011, Vol. 53 Issue 3, p616 

    The initial stages of the growth of cobalt films on the Si(100)2 × 1 surface and the dynamics of variation in their phase composition, electronic structure, and magnetic properties with a coverage increasing in the range 1-20 Å resolution photoelectron spectroscopy with synchrotron...

  • Surface analysis of PbTiO3 films prepared by the sol-gel method. Qu, Bao-Dong; Wang, Yu-Guo; Zhong, Wei-Lie; Wang, Ke-Ming; Wang, Zhong-Lie // Journal of Applied Physics;4/1/1992, Vol. 71 Issue 7, p3467 

    Provides information on a study that examined the surface of PbTiO[sub3] films prepared by the sol-gel method by the use of x-ray photoelectron spectra combined with secondary-ion mass spectra and infrared absorption spectra. Methodology of the study; Results and discussion on the study.

  • An x-ray photoelectron spectroscopy study of the thermal nitridation of SiO2/Si. Vasquez, R. P.; Madhukar, A.; Grunthaner, F. J.; Naiman, M. L. // Journal of Applied Physics;7/1/1986, Vol. 60 Issue 1, p226 

    Presents a study that examined the dependence of the nitrogen (N) distribution in thermally nitrided silicon dioxide films on the nitridation time and temperature using x-ray photoelectron spectroscopy (XPS). Intensity analysis of the XPS data; Determination of the compositional variation with...

  • X-ray photoelectron spectroscopic study of rare-earth-doped amorphous silicon–nitrogen films. Zanatta, A. R.; Ribeiro, C. T. M.; Alvarez, F. // Journal of Applied Physics;2/15/2003, Vol. 93 Issue 4, p1948 

    Amorphous silicon-nitrogen (a-SiN) films independently doped with different rare-earth (RE) elements (Y, La, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu) have been prepared by cosputtering. The films were investigated in detail by x-ray photoelectron spectroscopy employing 1486.6 eV photons....

  • Deposition of functional hydrogenated amorphous carbon-nitride film (a-CN:H) using C2H4/N2townsend dielectric barrier discharge. C. Sarra-Bournet; N. Gherardi; S. Turgeon; G. Laroche; F. Massines // European Physical Journal - Applied Physics;May2009, Vol. 47 Issue 8, p0 

    The present work is an investigation of the chemical composition and growth profile of an hydrogenated amorphous carbon nitride film (a-CN:H) deposited by atmospheric pressure Townsend discharge in C2H4/N2. Various surface characterization techniques were used to evaluate the coatings properties...

  • Electronic structures of c-plane and a-plane AlN/ZnO heterointerfaces determined by synchrotron radiation photoemission spectroscopy. Liu, J. W.; Kobayashi, A.; Ueno, K.; Toyoda, S.; Kikuchi, A.; Ohta, J.; Fujioka, H.; Kumigashira, H.; Oshima, M. // Applied Physics Letters;12/20/2010, Vol. 97 Issue 25, p252111 

    c-plane and a-plane AlN films have been grown on single-crystal ZnO substrates by pulsed laser deposition at room temperature. The electronic structures of c-plane and a-plane AlN/ZnO heterojunctions have been characterized by synchrotron radiation photoemission spectroscopy. Based on the...

  • Effects of annealing process on asymmetric coercivities of Mn-doped BiFeO3 thin films. Wen, Z.; Hu, G.; Yang, C.; Wu, W. // Applied Physics A: Materials Science & Processing;Dec2009, Vol. 97 Issue 4, p937 

    5% Mn-doped BiFeO3 (BFMO) thin films were deposited onto indium tin oxide electrodes using the sequential layer (BFMOSLA) and the conventional (BFMOCA) annealing processes. X-ray photoelectron spectroscopy results reveal that, in comparison with the BFMOCA film, the BFMOSLA film has lower...

  • Morphology, surface structures, and magnetic properties of MnSb thin films and nanocrystallites grown on graphite. Zhang, Hongliang; Kushvaha, Sunil S.; Wee, Andrew T. S.; Wang, Xue-sen // Journal of Applied Physics;7/15/2007, Vol. 102 Issue 2, p023906 

    MnSb nanocrystallites and thin films have been grown on highly oriented pyrolytic graphite (HOPG) by codeposition of Mn and Sb in ultrahigh vacuum. The surface morphologies of these MnSb structures were investigated using in situ scanning tunneling microscopy (STM). With 5 nm nominal deposition,...

  • Microscopic and macroscopic dielectric description of mixed oxide thin films. Ferrer, F. J.; Yubero, F.; Mejías, J. A.; García-Lopez, F. J.; González-Elipe, A. R. // Journal of Applied Physics;Oct2007, Vol. 102 Issue 8, p084112 

    Compact Si–Ti–O and Si–Zr–O mixed oxide thin films are studied by optical characterization (refractive index, band gap energy) and local probes (Auger parameter obtained by x-ray photoelectron spectroscopy). Interpretation of the obtained results is discussed in the...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics