Search
Now showing items 1821-1830 of 2111
Magnetic hardening of Sm2Fe17N3 by radiation damage
(American Physical Society, 1998)
Pinning type coercivity has been induced in large (?50?m) particles of Sm2Fe17N3 by irradiation with 5 GeV Pb56+ ions. Mossbauer spectroscopy is used to analyze the structure of the defects and estimate their volume. ...
Energy transfer in colloidal CdTe quantum dot nanoclusters
(2010)
Quantum dot (QD) nanoclusters were formed using oppositely charged colloidal CdTe QDs, of two different sizes, mixed in aqueous solutions. The photoluminescence (PL) spectra and time-resolved PL decays show signatures of ...
Optics In Ireland
(Optical Society of America, 2018)
This feature issue provides a snapshot of some of the applied optics and photonics related research and development activities currently taking place across Ireland. The issue contains some thirty papers, including ...
All-printed dielectric capacitors from high permittivity, liquid-exfoliated BiOCl nanosheets
(2020)
Printed networks of insulating 2D materials are promising for dielectric applications in printed electronic devices. However, this work has not really progressed beyond networks of BN nanosheets displaying dielectric ...
Density controlled conductivity of pristine graphene films
(2013)
Single or few layer graphene can be considered an exciting pseudo-two-dimensional molecular material that potentially has a wide range of applications. A critical bottleneck may arise with issues in their controlled assembly ...
Spontaneous emission enhancement in a microtube cavity with highly confined optical modes'
(SPIE, 2007)
A detailed study of the photonic modes in microtube cavity of ~ 7-8 ?m outer diameter is presented. We demonstrate a new route to the fabrication of individual microtubes with the maximum length of 200 ?m, using a vacuum ...
Noise controlled semiconductor optical amplifiers
(Trinity College (Dublin, Ireland). School of Physics, 2012)
Semiconductor optical amplifiers (SOA) have been widely used in communications systems for
decades, in a multitude of capacities. In their simplest form SOAs offer cost effective linear
amplification at a variety of ...
DMF-exfoliated graphene for electrochemical NADH detection
(2011)
The electrochemical detection of NADH is of considerable interest because it is required as a cofactor in a large number of dehydrogenase-based biosensors. However, the presence of oxygenated functionalities on the electrode ...
Tunnelling magnetoresistance of the half-metallic compensated ferrimagnet Mn<inf>2</inf>Ru<inf>x</inf>Ga
(2016)
Tunnel magnetoresistance ratios of up to 40% ar
e measured between 10 K and 300 K when the highly
spin-polarized compensated ferrimagnet, Mn
2
Ru
x
Ga, is integrated into MgO-based perpendicular
magnetic tunnel ...