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Now showing items 1891-1900 of 2111
The impact of protostellar jets on their environment
(Trinity College (Dublin, Ireland). School of Physics, 2005)
The nature of the accelerated and heated gas along collimated outflows emanating from
deeply embedded protostars is investigated. By analysing the shock structures and excitation
conditions it is possible to deduce information ...
Nanomechanical resonators for clinical coagulation diagnostics and malaria vaccine candidates analysis
(Trinity College Dublin. School of Physics. Discipline of Physics, 2018)
The development of a microcantilevers-based (MC-based) clinical diagnostic instrument that employs the dynamic mode of operation (microresonators) is presented. The device exploits microresonator arrays that are actively ...
Low cost, high performance ultrafiltration membranes from glass fiber-PTFE–graphene composites
(2020)
The development of low-cost ultrafiltration membranes with relatively high flow rate and selectivity is an important goal which could improve access to clean water in the developing world. Here we demonstrate a method to ...
Strain induced exciton fine-structure splitting and shift in bent ZnO microwires
(2012)
Lattice strain is a useful and economic way to tune the device performance and is commonly present in
nanostructures. Here, we investigated for the first time the exciton spectra evolution in bent ZnO
microwires along ...
Role of disorder on transport in boron-doped multiwalled carbon nanotubes
(The American Physical Society, 2003)
Electrical transport measurements on boron-doped multiwalled carbon nanotubes deposited on top of predefined
electrode patterns have been performed. The temperature dependence of the conductance reveals
through two-point ...
Electron paramagnetic resonance characterisation of defects in HfO2 and ZrO2 powders and films
(Trinity College (Dublin, Ireland). School of Physics, 2009)
Electron Paramagnetic Resonance (EFR) measurements have been made
on a variety of commercially available samples of monoclinic HfO2 and ZrO2
powders and also on HfO2 and ZrO2 films deposited on silicon by electron ...
Discretely Tunable Semiconductor Lasers Suitable for Photonic Integration
(2009)
Abstract?A sequence of partially reflective slots etched into an
active ridge waveguide of a 1.5 ?m laser structure is found to
provide sufficient reflection for lasing. Mirrors based on these reflectors
have strong ...
Finite-bias electronic transport of molecules in a water solution
(2010)
The effects of water wetting conditions on the transport properties of molecular nanojunctions are investigated
theoretically by using a combination of empirical-potential molecular-dynamics and first-principles
electr ...
Impact of bias current distribution on the noise figure and power saturation of a multicontact semiconductor optical amplifier
(2011)
We present an experimental investigation of a multicontact semiconductor optical amplifier. This first-generation device allows for direct control of the carrier density profile along the length of the waveguide. This is ...
Effect of ZnS shell thickness on the phonon spectra in CdSe quantum dots
(American Physical Society, 2003)
The evolution of the optical phonon spectra of colloidal core/shell CdSe/ZnS quantum dots with an increase of the shell thickness from 0.5 to 3.4 monolayers has been studied by resonant Raman spectroscopy. The results ...