Raman Characterization of Active B-Concentration Profiles in Individual p-Type/Intrinsic and Intrinsic/p-Type Si Nanowires

2009 ◽  
Vol 113 (25) ◽  
pp. 10901-10906 ◽  
Author(s):  
Go Imamura ◽  
Takahiro Kawashima ◽  
Minoru Fujii ◽  
Chiharu Nishimura ◽  
Tohru Saitoh ◽  
...  
Keyword(s):  
Concentration Profiles ◽  
Si Nanowires ◽  
P Type ◽  
Raman Characterization

A p-Type PbS Quantum Dot Ink with Improved Stability for Solution Processable Optoelectronics

2021 ◽  
Author(s):  
Fiaz Ahmed ◽  
John Hardin Dunlap ◽  
Perry J. Pellechia ◽  
Andrew Greytak
Keyword(s):  
Quantum Dot ◽  
Ligand Exchange ◽  
Chemical Characterization ◽  
Single Step ◽  
Improved Stability ◽  
Solution Processable ◽  
P Type ◽  
Pbs Quantum Dot

A highly stable p-type PbS-QDs ink is prepared using a single-step biphasic ligand exchange route, overcoming instability encountered in previous reports. Chemical characterization of the ink reveals 3-mercaptopriopionic acid (MPA)...

scholarly journals Optically transparent vertical silicon nanowire arrays for live-cell imaging

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Roey Elnathan ◽  
Andrew W. Holle ◽  
Jennifer Young ◽  
Marina A. George ◽  
Omri Heifler ◽  
...  
Keyword(s):  
High Efficiency ◽  
Silicon Nanowire ◽  
Live Cell ◽  
Si Nanowires ◽  
Contrast Imaging ◽  
Silicon Nanowire Arrays ◽  
Transparent Substrate ◽  
Optically Transparent ◽  
Vertically Aligned

AbstractProgrammable nano-bio interfaces driven by tuneable vertically configured nanostructures have recently emerged as a powerful tool for cellular manipulations and interrogations. Such interfaces have strong potential for ground-breaking advances, particularly in cellular nanobiotechnology and mechanobiology. However, the opaque nature of many nanostructured surfaces makes non-destructive, live-cell characterization of cellular behavior on vertically aligned nanostructures challenging to observe. Here, a new nanofabrication route is proposed that enables harvesting of vertically aligned silicon (Si) nanowires and their subsequent transfer onto an optically transparent substrate, with high efficiency and without artefacts. We demonstrate the potential of this route for efficient live-cell phase contrast imaging and subsequent characterization of cells growing on vertically aligned Si nanowires. This approach provides the first opportunity to understand dynamic cellular responses to a cell-nanowire interface, and thus has the potential to inform the design of future nanoscale cellular manipulation technologies.

Raman characterization of phonon confinement and strain effects from latent ion tracks in α‐quartz

2021 ◽  
Author(s):  
Maria C. Garcia Toro ◽  
Miguel L. Crespillo ◽  
Jose Olivares ◽  
Joseph T. Graham
Keyword(s):  
Phonon Confinement ◽  
Strain Effects ◽  
Ion Tracks ◽  
Raman Characterization

Characterization of As-doped, p-type ZnO by x-ray absorption near-edge structure spectroscopy: Theory

2006 ◽  
Vol 89 (22) ◽  
pp. 222113 ◽  
Author(s):  
Sukit Limpijumnong ◽  
M. F. Smith ◽  
S. B. Zhang
Keyword(s):  
Edge Structure ◽  
X Ray ◽  
P Type ◽  
X Ray Absorption

scholarly journals Synthesis and Magnetic Characterization of Graphite-Coated Iron Nanoparticles

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
A. M. Espinoza-Rivas ◽  
M. A. Pérez-Guzmán ◽  
R. Ortega-Amaya ◽  
J. Santoyo-Salazar ◽  
C. D. Gutiérrez-Lazos ◽  
...  
Keyword(s):  
Magnetite Nanoparticles ◽  
Iron Nanoparticles ◽  
Vapour Deposition ◽  
Magnetic Measurements ◽  
Chemical Vapour ◽  
Hydrogen Atmosphere ◽  
Iron Core ◽  
Carbon Excess ◽  
Raman Characterization

Graphite-coated iron nanoparticles were prepared from magnetite nanoparticles by chemical vapour deposition (CVD) under methane and hydrogen atmosphere. After being purified from carbon excess, graphite-coated iron nanoparticles were tested for morphological and magnetic properties. It was found that, during the thermal process, magnetite nanoparticles 6 nm in size coalesce and transform into graphite-coated iron 200 nm in size, as revealed by scanning electron microscopy (SEM). Raman characterization assessed that high-quality graphite coats the iron core. Magnetic measurements revealed the phase change (magnetite to iron) as an increase in the saturation magnetization from 50 to 165 emu/g after the CVD process.

Magneto-Optical Characterization of the Nitrogen-Related Impurities in p-Type ZnSe Epilayers

2000 ◽  
Vol 180 (1) ◽  
pp. 195-199 ◽  
Author(s):  
L. Gravier ◽  
H. Makino ◽  
K. Arai ◽  
H. Sasaki ◽  
K. Kimura ◽  
...  
Keyword(s):  
Optical Characterization ◽  
Related Impurities ◽  
P Type
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