Home

Person

Duncan Thomas Lindsay Alexander

About
Privacy
Disclaimer

Graph Chatbot

Related publications (76)

c-texture versus a-texture low pressure metalorganic chemical vapor deposition ZnO films: Lower resistivity despite smaller grain size

Christophe Ballif, Laura Ding, Sylvain Nicolay, Arthur Brian Aebersold, Duncan Thomas Lindsay Alexander, Lorenzo Fanni, Monica Morales Masis

Recently, it has been shown that it is possible to tune the morphology of zinc oxide films deposited by low-pressure metalorganic chemical vapor deposition (LP-MOCVD) while preserving good electrical conductivity. Here a closer look is taken at films depos ...

Elsevier2014

Highly Dynamic Cellular-Level Response of Symbiotic Coral to a Sudden Increase in Environmental Nitrogen

Duncan Thomas Lindsay Alexander, Anders Meibom, Christophe Kopp, Isabelle Domart-Coulon

Metabolic interactions with endosymbiotic photosynthetic dinoflagellate Symbiodinium spp. are fundamental to reef-building corals (Scleractinia) thriving in nutrient-poor tropical seas. Yet, detailed understanding at the single-cell level of nutrient assim ...

American Society for Microbiology2013

Quantitative imaging of flux vortices in the type-II superconductor MgB2 using cryo-Lorentz transmission electron microscopy

Marco Cantoni, Mathieu Julien Gino Cottet, Cécile Hébert, Duncan Thomas Lindsay Alexander, Fabrizio Carbone, Janusz Andrzej Karpinski

Imaging of flux vortices in high quality MgB2 single crystals has been successfully performed in a commercial field-emission gun-based transmission electron microscope. In cryo-Lorentz microscopy, the sample quality and the vortex lattice can be monitored ...

Amer Physical Soc2013

Amorphous/crystalline silicon interface defects induced by hydrogen plasma treatments

Christophe Ballif, Bénédicte Demaurex, Duncan Thomas Lindsay Alexander, Stefaan De Wolf, Loris Barraud, Jonas Geissbühler, Johannes Peter Seif

Excellent amorphous/crystalline silicon interface passivation is of extreme importance for high-efficiency silicon heterojunction solar cells. This can be obtained by inserting hydrogen-plasma treatments during deposition of the amorphous silicon passivati ...

American Institute of Physics2013

Effects of Si and Y in structural development of (Al,Cr,Si/Y)OxN1 (-) (x) thin films deposited by magnetron sputtering

Alireza Karimi, Duncan Thomas Lindsay Alexander, Hossein Najafi

Silicon (Si) and yttrium (Y) are believed to have a strong influence on functional properties of oxynitrides due to their effects in the growth process and incorporation in solid solution phases. It is worthwhile noting that the presence of these elements ...

Elsevier Science Sa2013

Imaging of high-Q cavity optical modes by electron energy-loss microscopy

Romuald Houdré, Marco Cantoni, Nicolas Le Thomas, Cécile Hébert, Duncan Thomas Lindsay Alexander

We show a technique that images the intensity distribution and local state of polarization of the optical field of high-quality factor optical modes confined in dielectric planar photonic crystal nanocavities. Based on energy-loss spectroscopy of swift ele ...

Amer Physical Soc2013

Ultrathin MoS2 membranes and their characterization through HRTEM and electron diffraction studies

Andras Kis, Duncan Thomas Lindsay Alexander, Jacopo Brivio

Cambridge, Cambridge University Press2012

Light trapping in solar cells: can periodic beat random?

Christophe Ballif, Marco Cantoni, Mathieu Charrière, Karin Söderström, Duncan Thomas Lindsay Alexander, Franz-Josef Haug, Mathieu Gérard Boccard, Matthieu Despeisse, Corsin Battaglia, Jordi Escarre Palou

Theory predicts that periodic photonic nanostructures should outperform their random counterparts in trapping light in solar cells. However, the current certified world-record conversion efficiency for amorphous silicon thin-film solar cells, which strongl ...

2012

Preparation of homogeneous titania coating on the surface of MWNT

László Forró, Jin Won Seo, Klara Hernadi, Duncan Thomas Lindsay Alexander

Preparation of homogeneous and stable inorganic coatings on the surface of multi-wall carbon nanotubes (CNTs) was studied. Precursor compounds such as titanium (IV) bromide and titanium (IV) chloride were used to cover the surface of CNTs under either solv ...

Elsevier2011

Microstructure and mechanical properties of hot rolled Fe-40 at-%Al intermetallic alloys with Zr and B addition

Duncan Thomas Lindsay Alexander

The microstructure and mechanical properties of hot rolled Fe-40 at-%Al based intermetallic alloys, with 0.1 at-%Zr and different additions of B (varying from 0.01 to 0.1 at-%), are characterised. The additions of Zr and B improve tensile properties at roo ...

2011

The electro-deoxidation of dense titanium dioxide precursors in molten calcium chloride giving a new reaction pathway

Duncan Thomas Lindsay Alexander

A new study is presented on the electro-deoxidation of porous TiO2 precursors in molten calcium chlo- ride electrolytes. It is shown that by reducing precursor open porosity from standard values of ≥25% to ∼11–12%, such that there is insufficient free volu ...

Elsevier2011

Cathodoluminescence in a (S)TEM – Exploring Possibilities and Limits

Pierre Stadelmann, Anas Mouti, Cécile Hébert, Duncan Thomas Lindsay Alexander

Cambridge, Cambridge University Press2010

Synthesis of Nanosized Mn-Doped ZnO by Low Temperature Decomposition of Hydrozincite Precursors

László Forró, Andrzej Sienkiewicz, Arnaud Magrez, Zlatko Mickovic, Marijana Mionic Ebersold, Duncan Thomas Lindsay Alexander

Transition-metal-doped ZnO is considered a promising candidate for applications in spintronics. Here, we developed it novel and versatile synthetic route for obtaining impurity-free Mn-doped zinc oxide (Zn1-xMnxO) materials witha well-controlled content of ...

2010

Nanoscale Analysis by EFTEM and FIB-Tomography for Optimization of Thin-Film Silicon Solar Cells

Christophe Ballif, Marco Cantoni, Peter Cuony, Sylvain Nicolay, Duncan Thomas Lindsay Alexander

Cambridge, Cambridge University Press2010

Cathodoluminescence Mapping of Cherenkov-Radiation Generated Bloch-Modes in Planar Photonic Crystals by Fast Electrons

Romuald Houdré, Marco Cantoni, Simon Schneider, Nicolas Le Thomas, Cécile Hébert, Duncan Thomas Lindsay Alexander

Cambridge, Cambridge University Press2010

La@C82 as a spin-active filling of SWCNTs: ESR study of magnetic and photophysical properties

László Forró, Andrzej Sienkiewicz, Arnaud Magrez, Bálint Náfrádi, Katarzyna Pierzchala, Luka Ciric, Duncan Thomas Lindsay Alexander

Electron microscopy (TEM) and electron spin resonance ESR) were applied to characterize lanthanum metallofullerene(La@C82)-filled peapods. The peapods were prepared by encapsulation of La@C82 in SWCNTs, which were obtained by laser ablation technique in th ...

2008

Page 4 of 4