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Junction Locations by Scanning Tunneling Microscopy: In-Air-Ambient Investigation of Passivated GaAs pn Junctions
Published
Author(s)
H. W. Tseng, John A. Dagata, Richard M. Silver, Joseph Fu, J R. Lowney
Abstract
Scanning tunneling microscopy (STM) and atomic force microscopy operating in air have been used to investigate locations of molecular-beam epitaxially grown GaAs multiple pn junctions cleaved and passivated with P(2)S(5). Symmetrically and asymmetrically doped junctions were prepared within topographically delineated AlAs/GaAs marker regions for this in-air study of electronic junction contrast. Our results indicate that the STM-delineated junction locations do not coincide with the electrical junction locations, but rather shift into the p-type regions.
Tseng, H.
, Dagata, J.
, Silver, R.
, Fu, J.
and Lowney, J.
(1993),
Junction Locations by Scanning Tunneling Microscopy: In-Air-Ambient Investigation of Passivated GaAs pn Junctions, Journal Vacuum Science Technology B
(Accessed October 9, 2025)