Atom probe tomography

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

Toward smart and ultra‐efficient solid‐state lighting

JY Tsao, MH Crawford, ME Coltrin… - Advanced Optical …, 2014‏ - Wiley Online Library
Solid‐state lighting has made tremendous progress this past decade, with the potential to
make much more progress over the coming decade. In this article, the current status of solid …

Auger recombination in InGaN measured by photoluminescence

YC Shen, GO Mueller, S Watanabe, NF Gardner… - Applied Physics …, 2007‏ - pubs.aip.org
The Auger recombination coefficient in quasi-bulk In x Ga 1− x N (x∼ 9%–15%) layers
grown on GaN (0001) is measured by a photoluminescence technique. The samples vary in …

Solid-state lighting

CJ Humphreys - MRS bulletin, 2008‏ - cambridge.org
Electricity generation is the main source of energy-related greenhouse gas emissions and
lighting uses one-fifth of its output. Solid-state lighting using light-emitting diodes (LEDs) is …

Research challenges to ultra‐efficient inorganic solid‐state lighting

JM Phillips, ME Coltrin, MH Crawford… - Laser & Photonics …, 2007‏ - Wiley Online Library
Solid‐state lighting is a rapidly evolving, emerging technology whose efficiency of
conversion of electricity to visible white light is likely to approach 50% within the next several …

Atom probe tomography 2012

TF Kelly, DJ Larson - Annual review of materials research, 2012‏ - annualreviews.org
In the world of tomographic imaging, atom probe tomography (APT) occupies the high-
spatial-resolution end of the spectrum. It is highly complementary to electron tomography …

Correlated ion analysis and the interpretation of atom probe mass spectra

DW Saxey - Ultramicroscopy, 2011‏ - Elsevier
Several techniques are presented for extracting information from atom probe mass spectra
by investigating correlations within multiple-ion detector events. Analyses of this kind can …

Density-activated defect recombination as a possible explanation for the efficiency droop in GaN-based diodes

J Hader, JV Moloney, SW Koch - Applied Physics Letters, 2010‏ - pubs.aip.org
GaN-based light emitting diodes for the blue-green wavelength regime are known to suffer
from the so-called “efficiency droop.” The internal quantum efficiency peaks at very low …

Nanometer scale spectral imaging of quantum emitters in nanowires and its correlation to their atomically resolved structure

LF Zagonel, S Mazzucco, M Tencé, K March… - Nano …, 2011‏ - ACS Publications
We report the spectral imaging in the UV to visible range with nanometer scale resolution of
closely packed GaN/AlN quantum disks in individual nanowires using an improved custom …

Composition of wide bandgap semiconductor materials and nanostructures measured by atom probe tomography and its dependence on the surface electric field

L Mancini, N Amirifar, D Shinde, I Blum… - The Journal of …, 2014‏ - ACS Publications
Atom probe tomography allows for three-dimensional reconstruction of the elemental
distribution in materials at the nanoscale. However, the measurement of the chemical …