Results 1 to 10 of about 5,483 (153)

Atom probe tomography. [PDF]

Nat Rev Methods Primers, 2021
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 elements, including light elements such as hydrogen, carbon or lithium, enabling unique insights into the composition of performance-enhancing or lifetime-limiting ...
Gault B, Chiaramonti A, Cojocaru-Mirédin O, Stender P, Dubosq R, Freysoldt C, Makineni SK, Li T, Moody M, Cairney JM.   +9 more
europepmc   +5 more sources

Nanoscale analysis of frozen honey by atom probe tomography [PDF]

Scientific Reports, 2022
Three-dimensional reconstruction of the analysed volume is one of the main goals of atom probe tomography (APT) and can deliver nearly atomic resolution (~ 0.2 nm spatial resolution) and chemical information with a mass sensitivity down to the ppm range.
Tim M. Schwarz, Jonas Ott, Helena Solodenko, Guido Schmitz, Patrick Stender   +4 more
doaj   +2 more sources

Bringing atom probe tomography to transmission electron microscopes [PDF]

Nature Communications
For the purpose of enhancing the structural insights within the three-dimensional composition fields revealed by atom probe tomography, correlative microscopy approaches, combining (scanning) transmission electron microscopy with atom probe tomography ...
Gerald Da Costa, Celia Castro, Antoine Normand, Charly Vaudolon, Aidar Zakirov, Juan Macchi, Mohammed Ilhami, Kaveh Edalati, François Vurpillot, Williams Lefebvre   +9 more
doaj   +2 more sources

Interpreting nanovoids in atom probe tomography data for accurate local compositional measurements [PDF]

Nature Communications, 2020
Atom probe tomography can image chemical composition at the nanoscale, but our understanding of how it images voids, or empty spaces, is still lacking. Here, the authors combine atom probe tomography, scanning transmission electron microscopy, and field ...
Xing Wang, Constantinos Hatzoglou, Brian Sneed, Zhe Fan, Wei Guo, Ke Jin, Di Chen, Hongbin Bei, Yongqiang Wang, William J. Weber, Yanwen Zhang, Baptiste Gault, Karren L. More, Francois Vurpillot, Jonathan D. Poplawsky   +14 more
doaj   +2 more sources

Resolving protein-mineral interfacial interactions during in vitro mineralization by atom probe tomography [PDF]

Materials Today Advances, 2023
Organic macromolecules exert remarkable control over the nucleation and growth of inorganic crystallites during (bio)mineralization, as exemplified during enamel formation where the protein amelogenin regulates the formation of hydroxyapatite (HAP ...
Sandra D. Taylor, Jinhui Tao, Yongsoon Shin, Garry W. Buchko, Alice Dohnalkova, Jack Grimm, Barbara J. Tarasevich, Bojana Ginovska, Wendy J. Shaw, Arun Devaraj   +9 more
doaj   +2 more sources

Effective preparation of low-melting solder materials for atom probe tomography [PDF]

Scientific Reports
Low-melting metal alloys have gained renewed attention for additive manufacturing, energy storage and microelectronics. However, micro- and nanostructure characterisation demands highly sophisticated sample preparation.
Charlotte Cui, Michael Tkadletz, Michael Reisinger, Peter Imrich, Walter Hartner, Roland Brunner   +5 more
doaj   +2 more sources

Reliable Atom Probe Tomography of Cu Nanoparticles Through Tailored Encapsulation by an Electrodeposited Film [PDF]

Nanomaterials
Nanoparticles are essential for energy storage, catalysis, and medical applications, emphasizing their accurate chemical characterization. However, atom probe tomography (APT) of nanoparticles sandwiched at the interface between an encapsulating film and
Aydan Çiçek, Florian Knabl, Maximilian Schiester, Helene Waldl, Lidija D. Rafailović, Michael Tkadletz, Christian Mitterer   +6 more
doaj   +2 more sources

Dynamic reconstruction for atom probe tomography [PDF]

Ultramicroscopy, 2011
Progress in the reconstruction for atom probe tomography has been limited since the first implementation of the protocol proposed by Bas et al. in 1995. This approach, and those subsequently developed, assume that the geometric parameters used to build the three-dimensional atom map are constant over the course of an analysis.
Simon P Ringer, Baptiste Gault, Shyeh Tjing Loi   +2 more
exaly   +6 more sources

Direct observation of 3D nitrogen distribution in silicon-based dielectrics using atom probe tomography [PDF]

Nature Communications
The distribution of nitrogen in semiconductor devices plays a crucial role in tuning their physical and electrical properties. However, direct observation and precise quantification of nitrogen remain challenging because of analytical limitations ...
Byeong-Gyu Chae, Jeong Yeon Won, Young Sik Shin, Dong Jin Yun, Jae min Ahn, Seon Tae Park, Ki-bum Lee, Hokyun An, Mina Seol, I-Jun Ro, Se-Ho Kim, Chunhyung Chung, Eunha Lee   +12 more
doaj   +2 more sources

Three-dimensional atomic mapping of ligands on palladium nanoparticles by atom probe tomography [PDF]

Nature Communications, 2021
Despite the important role of ligands in designing nanoparticles, directly imaging them on the nanoparticle surface remains a challenge. Here, the authors use atom probe tomography to map the spatial distribution of ligands on nanoparticles and reveal ...
Kyuseon Jang, Se-Ho Kim, Hosun Jun, Chanwon Jung, Jiwon Yu, Sangheon Lee, Pyuck-Pa Choi   +6 more
doaj   +2 more sources