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Scanning transmission electron microscope microanalytical study of phosphorus segregation at grain boundaries in thin-film silicon

Journal Article · · Appl. Phys. Lett.; (United States)
DOI:https://doi.org/10.1063/1.93368· OSTI ID:6809545
Phosphorus segregation at grain boundaries in thin-film silicon has been investigated by scanning transmission electron microscope x-ray microanalysis. Low-pressure chemically vapor-deposited silicon was heavily diffusion doped and subsequently annealed at 650, 700, 750, or 800 /sup 0/C. Enhanced phosphorus concentrations were observed at grain boundaries with increasing levels at lower annealing temperatures. The amount of segregation was also found to vary from boundary to boundary in each specimen. The average energy of segregation was evaluated as 7.5 kcal/mol.
Research Organization:
Materials and Molecular Research Division, Lawrence Berkeley Laboratory, Berkeley, California 94720
DOE Contract Number:
AC03-76SF00098
OSTI ID:
6809545
Journal Information:
Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 41:10; ISSN APPLA
Country of Publication:
United States
Language:
English