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Digitale Medien

Surface passivation of GaAs (1989)

Lee, H. H. ; Racicot, R. J. ; Lee, S. H.

Woodbury, NY : American Institute of Physics (AIP)

Applied Physics Letters 54 (1989), S. 724-726

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Details

ISSN: 1077-3118

Quelle: AIP Digital Archive

Thema: Physik

Notizen: We have successfully passivated the surface of n-type (100) GaAs on the basis of P2S5/NH4OH treatment of the surface. A fivefold increase in the photoluminescence (PL) intensity results at room temperature when the surface is passivated and the PL intensity remains the same even after ten days' exposure to room air. Current-voltage characteristic also corroborates the PL measurements and shows that the GaAs surface retains its integrity when passivated with P2S5 and its electronic characteristic remains invariant with time even after exposure to air for one month. The results are indications of the robust stability of the passivated GaAs surface.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.100873

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Digitale Medien

Restriction endonuclease analysis of mitochondrial DNA from sorghum with fertile and male-sterile cytoplasms (1989)

Lee, S. H. ; Muthukrishnan, S. ; Sorensen, E. L. ; [weitere]

Springer

Theoretical and applied genetics 77 (1989), S. 379-382

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Details

ISSN: 1432-2242

Schlagwort(e): Sorghum bicolor (L.) Moench ; Agarose gel electrophoresis ; isocytoplasmic strains

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie

Notizen: Summary Mitochondrial DNA from four paired (fertile and male-sterile) lines and six isocytoplasmic strains of sorghum (Sorghum bicolor (L.) Moench) were fragmented by endonucleases and their electrophoretic patterns were examined. Cytoplasmic male sterile lines differed from their male-fertile counterparts consistently. Among the isocytoplasmic strains, KS 36A (S. verticilli-florum cytoplasm), KS 38A (S. conspicum cytoplasm), and KS 39A (S. niloticum cytoplasm) showed minor differences from the other strains. Results suggest that restriction endonuclease patterns are useful in detecting differences in mitochondrial genomes.