Atom probe tomography

B Gault, A Chiaramonti, O Cojocaru-Mirédin… - Nature Reviews …, 2021 - nature.com
Atom probe tomography (APT) provides three-dimensional compositional mapping with sub-
nanometre resolution. The sensitivity of APT is in the range of parts per million for all …

Electrical contacts to one-and two-dimensional nanomaterials

F Léonard, AA Talin - Nature nanotechnology, 2011 - nature.com
Existing models of electrical contacts are often inapplicable at the nanoscale because there
are significant differences between nanostructures and bulk materials arising from unique …

Direct measurement of dopant distribution in an individual vapour–liquid–solid nanowire

DE Perea, ER Hemesath, EJ Schwalbach… - Nature …, 2009 - nature.com
Semiconductor nanowires show promise for many device applications,,, but controlled
doping with electronic and magnetic impurities remains an important challenge …

Three-dimensional nanoscale characterisation of materials by atom probe tomography

A Devaraj, DE Perea, J Liu, LM Gordon… - International …, 2018 - Taylor & Francis
The development of three-dimensional (3-D), characterisation techniques with high spatial
and mass resolution is crucial for understanding and developing advanced materials for …

Alternative catalysts for VSS growth of silicon and germanium nanowires

JL Lensch-Falk, ER Hemesath, DE Perea… - Journal of Materials …, 2009 - pubs.rsc.org
Metal impurities have been used to mediate the growth of anisotropic crystalline
semiconductor nanowires for a variety of applications. A majority of efforts have employed …

Modern focused-ion-beam-based site-specific specimen preparation for atom probe tomography

TJ Prosa, DJ Larson - Microscopy and Microanalysis, 2017 - academic.oup.com
Approximately 30 years after the first use of focused ion beam (FIB) instruments to prepare
atom probe tomography specimens, this technique has grown to be used by hundreds of …

Relative influence of surface states and bulk impurities on the electrical properties of Ge nanowires

S Zhang, ER Hemesath, DE Perea, E Wijaya… - Nano …, 2009 - ACS Publications
We quantitatively examine the relative influence of bulk impurities and surface states on the
electrical properties of Ge nanowires with and without phosphorus (P) doping. The …

Nanomechanical detection of nuclear magnetic resonance using a silicon nanowire oscillator

JM Nichol, ER Hemesath, LJ Lauhon… - Physical Review B …, 2012 - APS
The authors report the use of a radio frequency (rf) silicon nanowire mechanical oscillator as
a low-temperature nuclear magnetic resonance force sensor to detect the statistical …

Nonuniform nanowire doping profiles revealed by quantitative scanning photocurrent microscopy

JE Allen, DE Perea, ER Hemesath… - Advanced …, 2009 - scholars.northwestern.edu
The quantitative scanning photocurrent microscopy have revealed the nonuniform nanowire
doping profiles by using Kelvin probe force microscopy (KPFM) as a technique to determine …

Diameter-Dependent Electronic Transport Properties<? format?> of Au-Catalyst/Ge-Nanowire Schottky Diodes

F Léonard, AA Talin, BS Swartzentruber, ST Picraux - Physical review letters, 2009 - APS
We present electronic transport measurements in individual Au-catalyst/Ge-nanowire
interfaces demonstrating the presence of a Schottky barrier. Surprisingly, the small-bias …