http://www.cnr.it/ontology/cnr/individuo/prodotto/ID34454
Band bending and adsorption/desorption kinetics on N-polar GaN surfaces (Articolo in rivista)
- Type
- Label
- Band bending and adsorption/desorption kinetics on N-polar GaN surfaces (Articolo in rivista) (literal)
- Anno
- 2009-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1116/1.3054345 (literal)
- Alternative label
S. Choi; T.H. Kim, P. Wu; A. Brown; H. O. Everitt; M. Losurdo;G. Bruno (2009)
Band bending and adsorption/desorption kinetics on N-polar GaN surfaces
in Journal of vacuum science & technology. B, Microelectronics and nanometer structures
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- S. Choi; T.H. Kim, P. Wu; A. Brown; H. O. Everitt; M. Losurdo;G. Bruno (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Duke Univ, Dept Elect & Comp Engn, Durham, NC 27708 USA
Duke Univ, Dept Phys, Durham, NC 27708 USA
CNR, Inst Inorgan Methodol & Plasmas, I-70126 Bari, Italy (literal)
- Titolo
- Band bending and adsorption/desorption kinetics on N-polar GaN surfaces (literal)
- Abstract
- Abstract: Highly reactive N-polar [000-1] GaN surfaces were analyzed using spectroscopic ellipsometry. Following exposure to air, observed changes in the pseudodielectric function near the GaN band edge indicate that surface contamination reduces the band bending. A subsequent Ga adsorption/desorption experiment on pristine N-polar GaN indicates that it contains a mixture of Ga-terminated and N-terminated surfaces. During deposition, Ga adatoms preferentially bond to the dangling bonds on the N-terminated surface: the measured 3.19 eV desorption activation energy equals the Ga-N decomposition energy. Further deposition forms a 1 ML Ga wetting layer whose 2.78 eV desorption activation energy is comparable to the Ga sublimation energy. (literal)
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- Autore CNR
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