Matches in SemOpenAlex for { <https://semopenalex.org/work/W1617454022> ?p ?o ?g. }
Showing items 1 to 75 of
75
with 100 items per page.
- W1617454022 abstract "Surface structure, chemical composition, bonding configuration, film polarity, and electronic properties of InN layers grown by high pressure chemical vapor deposition (HPCVD) have been investigated. Sputtering at an angle of 50-70 degrees followed by atomic hydrogen cleaning (AHC) was successful in removing the carbon contaminants. AHC is found to be the most effective cleaning process to remove oxygen contaminants from InN layers in an ultrahigh vacuum (UHV) system and produced a well ordered surface. Auger electron spectroscopy (AES) confirmed the cleanliness of the surface, and low energy electron diffraction (LEED) yielded a 1×1 hexagonal pattern demonstrating a well-ordered surface. High resolution electron energy loss spectra (HREELS) taken from the InN layers exhibited loss features at 550 cm, 870 cm and 3260 cm which were assigned to FuchsKliewer phonon, N-H bending, and N-H stretching vibrations, respectively. Assignments were confirmed by observation of isotopic shifts following atomic deuterium dosing. No In-H species were observed indicating N-termination of the surface and N-polarity of the film. Broad conduction band plasmon excitations were observed centered at 3100 cm to 4200 cm in HREEL spectra acquired with 25 eV electrons, for a variety of samples grown with different conditions. Infrared reflectance data shows a consistent result with HREELS for the bulk plasma frequency. The plasmon excitations are shifted about 300 cm higher in HREEL spectra acquired using 7 eV electrons due to the higher plasma frequency and carrier concentration at the surface than in the bulk, demonstrating a surface electron accumulation. Hydrogen completely desorbed from the InN surface upon annealing for 900 s at 425 oC or upon annealing for 30 s at 500 oC. Fitting the coverage versus temperature for anneals of either 30 or 900 s indicated that the desorption was best described by second order desorption kinetics with an activation energy and pre-exponential factor of 1.3±0.2 eV and 10 cm/s, respectively. Vibrational spectra acquired from HREEL can be utilized to explain the surface composition, chemical bonding and surface termination, and film polarity of InN layers. The explanation of evidence of surface electron accumulation and extraction of hydrogen desorption kinetic parameters can be performed by utilizing HREEL spectra. INDEX WORDS: Electron energy loss spectroscopy, Vibrational spectroscopy, Indium nitride, Nitride semiconductors, Surface structure composition, Surface electron accumulation, Hydrogen desorption ELECTRON SPECTROSCOPIC STUDY OF INDIUM NITRIDE LAYERS" @default.
- W1617454022 created "2016-06-24" @default.
- W1617454022 creator A5022414547 @default.
- W1617454022 date "2008-01-01" @default.
- W1617454022 modified "2023-09-26" @default.
- W1617454022 title "Electron spectroscopic study of indium nitride layers" @default.
- W1617454022 cites W1984679785 @default.
- W1617454022 cites W1990522939 @default.
- W1617454022 cites W588104934 @default.
- W1617454022 cites W624873386 @default.
- W1617454022 hasPublicationYear "2008" @default.
- W1617454022 type Work @default.
- W1617454022 sameAs 1617454022 @default.
- W1617454022 citedByCount "2" @default.
- W1617454022 countsByYear W16174540222012 @default.
- W1617454022 countsByYear W16174540222013 @default.
- W1617454022 crossrefType "journal-article" @default.
- W1617454022 hasAuthorship W1617454022A5022414547 @default.
- W1617454022 hasConcept C100083437 @default.
- W1617454022 hasConcept C113196181 @default.
- W1617454022 hasConcept C120665830 @default.
- W1617454022 hasConcept C121332964 @default.
- W1617454022 hasConcept C146088050 @default.
- W1617454022 hasConcept C171250308 @default.
- W1617454022 hasConcept C178187954 @default.
- W1617454022 hasConcept C185544564 @default.
- W1617454022 hasConcept C185592680 @default.
- W1617454022 hasConcept C192562407 @default.
- W1617454022 hasConcept C207114421 @default.
- W1617454022 hasConcept C25442681 @default.
- W1617454022 hasConcept C2779070497 @default.
- W1617454022 hasConcept C43617362 @default.
- W1617454022 hasConcept C77557913 @default.
- W1617454022 hasConceptScore W1617454022C100083437 @default.
- W1617454022 hasConceptScore W1617454022C113196181 @default.
- W1617454022 hasConceptScore W1617454022C120665830 @default.
- W1617454022 hasConceptScore W1617454022C121332964 @default.
- W1617454022 hasConceptScore W1617454022C146088050 @default.
- W1617454022 hasConceptScore W1617454022C171250308 @default.
- W1617454022 hasConceptScore W1617454022C178187954 @default.
- W1617454022 hasConceptScore W1617454022C185544564 @default.
- W1617454022 hasConceptScore W1617454022C185592680 @default.
- W1617454022 hasConceptScore W1617454022C192562407 @default.
- W1617454022 hasConceptScore W1617454022C207114421 @default.
- W1617454022 hasConceptScore W1617454022C25442681 @default.
- W1617454022 hasConceptScore W1617454022C2779070497 @default.
- W1617454022 hasConceptScore W1617454022C43617362 @default.
- W1617454022 hasConceptScore W1617454022C77557913 @default.
- W1617454022 hasLocation W16174540221 @default.
- W1617454022 hasOpenAccess W1617454022 @default.
- W1617454022 hasPrimaryLocation W16174540221 @default.
- W1617454022 hasRelatedWork W1970042167 @default.
- W1617454022 hasRelatedWork W1979594805 @default.
- W1617454022 hasRelatedWork W1993805126 @default.
- W1617454022 hasRelatedWork W1995233124 @default.
- W1617454022 hasRelatedWork W2002068027 @default.
- W1617454022 hasRelatedWork W2005583226 @default.
- W1617454022 hasRelatedWork W2011423333 @default.
- W1617454022 hasRelatedWork W2023340302 @default.
- W1617454022 hasRelatedWork W2075465179 @default.
- W1617454022 hasRelatedWork W2075579386 @default.
- W1617454022 hasRelatedWork W2075688832 @default.
- W1617454022 hasRelatedWork W2077116858 @default.
- W1617454022 hasRelatedWork W2128567656 @default.
- W1617454022 hasRelatedWork W2138279125 @default.
- W1617454022 hasRelatedWork W2153699034 @default.
- W1617454022 hasRelatedWork W2782442382 @default.
- W1617454022 hasRelatedWork W2927556207 @default.
- W1617454022 hasRelatedWork W2949924160 @default.
- W1617454022 hasRelatedWork W2952384277 @default.
- W1617454022 hasRelatedWork W2953170445 @default.
- W1617454022 isParatext "false" @default.
- W1617454022 isRetracted "false" @default.
- W1617454022 magId "1617454022" @default.
- W1617454022 workType "article" @default.