Rights statement: “This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials and Interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/am400270w
Accepted author manuscript, 683 KB, PDF document
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - High-accuracy analysis of nanoscale semiconductor layers using beam-exit Ar-ion polishing and scanning probe microscopy
AU - Robson, Alex
AU - Grishin, Ilja
AU - Young, Robert
AU - Sanchez, A. M.
AU - Kolosov, Oleg
AU - Hayne, Manus
N1 - “This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials and Interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/am400270w
PY - 2013
Y1 - 2013
N2 - A novel method of sample cross-sectioning, beam-exit Ar-ion cross-sectional polishing, has been combined with scanning probe microscopy to study thin AlxGa1-xAs/GaAs layers. Additional contrast enhancement via a citric acid/hydrogen peroxide etch allows us to report the observation of layers as thin as 1 nm. Layer thickness measurements agree with transmission electron microscopy (TEM) data to 0.1 ± 0.2 nm, making this a very promising low-cost method for nanoscale analysis of semiconductor heterostructures.
AB - A novel method of sample cross-sectioning, beam-exit Ar-ion cross-sectional polishing, has been combined with scanning probe microscopy to study thin AlxGa1-xAs/GaAs layers. Additional contrast enhancement via a citric acid/hydrogen peroxide etch allows us to report the observation of layers as thin as 1 nm. Layer thickness measurements agree with transmission electron microscopy (TEM) data to 0.1 ± 0.2 nm, making this a very promising low-cost method for nanoscale analysis of semiconductor heterostructures.
KW - Scanning probe microscopy
KW - cross-sectional analysis
KW - semiconductor nanostructure layers
KW - transmission electron microscopy
KW - nanoscale metrology
KW - selective etching
U2 - 10.1021/am400270w
DO - 10.1021/am400270w
M3 - Journal article
VL - 5
SP - 3241
EP - 3245
JO - ACS Applied Materials and Interfaces
JF - ACS Applied Materials and Interfaces
SN - 1944-8244
IS - 8
ER -