Optical and Electronic Materials and Nanomaterials

Robert Bartha
Robarts Research Institute
519 661-2111 ext 24039
Research home page http://www.robarts.ca/robert-bartha
Characterization of nanomaterials for use as imaging contrast agents.

Dr. Bartha's program involves the characterization of novel nanomaterials for use as magnetic resonance imaging contrast agents.  In particular, the characterization and development of methods to detect nanomaterials with greater sensitivity using a mechanism called chemical exchange saturation transfer.  The use of this mechanism provides opportunities to utilize nanomaterials to report physiological conditions such as temperature and pH in biological systems.

Styliani Constas
ChB 071
519 661-2111 ext 86338
Research home page http://www.theory.chem.uwo.ca  
Molecular simulations of phase transformations of titanium dioxide nanotubes and nanorods; disintegration mechanisms of charged liquid nanodroplets;  chemical reactions in clusters.

Systems with dimensions in the nanometer range are studied by molecular simulations and analytical theories. The systems are modeled on atomic scale using different levels of description that range from quantum chemical to empirical in order to capture features defining the properties of the systems. The properties that are studied are phase transformations, conformational changes of biological molecules and other polymers, solvation, reactions in clusters/aerosols, disintegration mechanisms of charged nanodroplets, diffusion of drugs.

John F Corrigan
ChB 16
519 661-2111 ext 86387
Research home page http://publish.uwo.ca/~jfcorrig/   
nanoclusters and nanoparticles, semiconductor, X-ray crystallography 

Prof. Corrigan develops methodologies for the controlled assembly of nanocluster (crystallographically characterized) and nanoparticle semiconductor complexes. Nanometer sized, functionalized architectures are prepared and specific luminescence and sensor properties are incorporated into (or onto) the frameworks via a small molecule precursor approach. 

Colin Denniston
519 661-2111 ext 88791
Research home page  http://www.apmaths.uwo.ca/%7ecdennist/
multiscale modelling of nanostructured soft materials

The Denniston group's research focuses on modelling particles and dynamic processes in complex fluids.  They study systems involving micro- and nano-scale objects, soft colloids or polymers for instance, in a complex fluid such as a liquid crystal.  An important aspect of their work is the development of models and multi-scale computer simulation techniques to investigate these systems. 

Giovanni Fanchini
PAB 229
519 661-2111 ext 86238
Research home page http://www.physics.uwo.ca/~gfanchin/
Optoelectronic devices from carbon nanotubes and graphene, development of new optical techniques for characterizing nanomaterials, solid-state electron spin resonance,photovoltaics and solar thermal materials, carbon based nanomaterials in energy systems

Prof. Fanchini's activity encompasses the preparation of carbon-based and organic nanomaterials and their use for the fabrication of optical and electronic devices , including as thin film transistors and solar cells. Materials that have been recently investigated include carbon nanotube networks, graphene nanoplatelets, conducting polymers and polyaromatic molecules. Specific characterization and modeling activities focus on spectroscopic investigation of electronic and solar cell devices during operation and involve the use of photothermal deflection spectroscopy, spectroscopic ellipsometruy, solid-state electron-spin resonance, Kelvin-probe spectro-microscopy and near-field optical techniques.

Lyudmila Goncharova
PAB 231
519 661-2111 ext 81558
Research home page http://www.physics.uwo.ca/~lgonchar/
Ion beam analysis and implantation, electronic materials, surface physics, reaction diffusion at interfaces, surface modification, high-resolution hydrogen profiling, quantum dots, particle-solid interactions, in-situ growth

Prof. Lyudmila Goncharova is an expert in surface and interface characterization utilizing high and medium energy ion scattering elastic recoil detection analysis, nuclear reaction analysis. Scientific objectives in the group are to perform quantum dot preparation using ion implantation, as well as high-resolution ion profiling of thin film multilayered structures with focus on the interfaces, and a development of a more comprehensive model of interface structures that can be used in the design of interfaces for electronics, photonics and related applications. Additionally the broader technological impact of this work will result in improving ion beam techniques for hydrogen detection and profiling to study novel materials for solar cell energy applications.

Liying Jiang
SEB 3076
519 661-2111 ext 80422
Research home page http://www.eng.uwo.ca/people/lyjiang/
Piezoelectric nanostructures in energy harvesting; Mechanical properties of nanostructured materials; Conductive nanocomposites; Electromechanical coupling behavior of nanoscale dielectric actuators and sensors 

Dr. Jiang’s research interests and activities cover a wide range in solid and applied mechanics and materials engineering. One of her projects is focused on investigating the size-dependent properties of piezoelectric nanostructures in energy harvesting. Dr. Jiang’s other research topics include investigating the mechanical and electrical properties of conductive polymer nanocomposites by developing an efficient multi-scale modeling approach; investigating the mechanical properties of carbon nanotube, graphene, and the electromechanical coupling behavior of nanoscale dielectric materials for applications as actuators and sensors.

François Lagugné-Labarthet 
MSA 0202
519 661-2111 ext 81006
Research home page http://publish.uwo.ca/%7eflagugne/
Metallic nanostructures for photonics applications, advanced optical spectroscopy for nanomaterial characterization, fluorescence lifetime imaging.

Prof. Lagugné-Labarthet's scientific interest includes the development of high spatial resolution optical spectroscopy for nanomaterial characterization, the design, modeling and fabrication of nanostructured plasmonics devices for high sensitivity sensing. More recently he is involved together with Robarts researchers in the spatial control of neuron growth using surface modification. He is involved in multiple collaborations within UWO and with other Canadian and European colleagues. 

Silvia Mittler
519 661-2111 ext 88592
Research home page: http://www.physics.uwo.ca/~smittler/
integrated optical sensors, gold nanoparticle sensors, thin films and interfaces, evanescent optical microscopy for cell substrate interaction studies, evanescent optical tweezers, self-assembled monolayers as surface functionalization for chemo-sensors, aligend collagen, 2D nanopattern, polymeric materials for biocompatible surfaces, polarimetry, surface plasmon spectroscopy, evanescent absorption spectroscopy, waveguide spectroscopy

Dr. Mittler's Laboratory for Photonics of Surfaces and Interfaces focuses on three major themes. One is evanescent microscopy, both fluorescence and scattering, to study ultra thin films, cell adhesion and biofilm formation on surfaces: here novel (polymeric) materials can be tested for biocompatibility, foulingor antifouling effects. The second theme addresses fabrication of functional surfaces to detect particular molecules (e.g. cancer marker) or creates a particular cell response. This involves gold nanoparticles and localized surface plasmon spectroscopy, self-assembled monolayers or Langmuir-Blodgett films but also nano-structuring with holographic methods. Last but not least, new fundamental sensor platforms based on waveguide technology are developed.Dr. Mittler works highly interdisciplinary and has various cooperations especially when biological topics are addressed or new synthetic materials are involved.

T.K. Sham
519 661-2111 ext 86341
Research home page http://publish.uwo.ca/~tsham/
bio-compatible silicate and phosphates for drug delivery, biocompatibility of nanomaterials for drug delivery, Li based materials for Li battery, nano-catalyst for fuel cells, OLED and optoelectronic materials, magnetism, nano-heterostructures, nanomaterials for electronic, optical and energy applications, C and Si based materials, metal oxides, development and application of synchrotron radiation 

Professor Sham’s research covers the general area of the chemistry and electronic properties of materials and the development and application of synchrotron radiation, especially the interplay of electronic structure, materials properties and synchrotron techniques. His areas of expertise include nanomaterial synthesis with emphasis on C and Si based materials as well as metal oxides, surface and interface, photoemission, x-ray absorption, photon-in photon-out spectroscopy (x-ray emission, x-ray excited optical luminescence, resonant and non-resonant inelastic x-ray scattering via the x-ray and the Auger channel) and x-ray microscopy. His recent interest concerns with nanostructure assembly and proximity effects, light emitting phenomena from composite nanostructures in the energy and time domain, microbeam analysis of tissues, energy transfer dynamics in nanostructures and industrial materials for drug delivery, Li battery and fuel cell applications.

Peter J Simpson
P&AB 210, also SSB 4810
519 661-2111 ext  83390 or 82102
Research home page http://www.physics.uwo.ca/~psimpson/
nanocrystal fabrication, positron annihilation

Peter Simpson's group researches the production of silicon nanocrystals, or quantum dots, by a variety of fabrication methods.  These structures exhibit light emission unlike bulk silicon, and we investigate the underlying physics of the light emission process as a step toward device engineering. Prof. Simpson also researches the application of positron annihilation as a technique to investigate open-volume defects in materials, and the use of 'defect engineering' to control or modify material properties.

Yang Song
ChB 22
519 661-2111 ext 86310
Research home page http://publish.uwo.ca/~ysong56/
Novel functional materials and nanomaterials under extreme conditions, energetic materials, hydrogen and CO2 storage materials

Chemistry and materials research under extreme conditions, especially at high pressures, represents a prevailing interdisciplinary frontier area with profound implications in new functional materials ane clean energy. In particular, the Song group is specialized in the investigation of molecular structures and materials properties under extremely high pressures using optical spectroscopy and synchrotron techniques. The recent research thrusts focused on several main themes, such as pressure-morphology tuning of one-dimensional nanomaterials, investigation of energetic materials, and development of hydrogen storage materials.

Mark S. Workentin
ChB 223 Lab: ChB 203
519 661-2111 ext 86319
Research home page publish.uwo.ca/~mworkent
physical organic chemistry of materials; material design, characterization and function

Prof. Workentin specializes in the design and synthesis of photochemically and electrochemically responsive organic functionalized materials.  The main goal is to develop a physical organic chemistry understanding of the structure-function relationships  and factors that control chemical reactivity on these materials to aid in the building of new architectures for potential applications.  

Jun Yang
SEB 3089
519 661-2111 ext 80158
Research home page http://www.eng.uwo.ca/people/jyang/
Nanomaterials for Electronics, Bio and Environment: conductive polymer composite, functional surface engineering and antimicrobial/anti-biofouling materials 

Prof. Yang’s lab focuses on developing functional materials and surfaces using green technologies. Specific applications include conductive polymer nanocomposites for flexible electronics, functional membranes for filtration and functional surfaces for antimicrobial/anti-biofouling purposes.  

News and Events

Congratulations to the 2016 AMBI Undergraduate Research Award recipients:

Yi Min Liang working with Dr. John Corrigan (Chemistry) and Dr. Giovanni Fanchini (Physics and Astronomy)

Keifer Stevenson working with Dr. Zhifeng Ding (Chemistry) and Dr. Jun Yang (Mech and Mater Engineering)

Anastasiya Vinokurtseva working with Dr. Robert Hudson (Chemistry) and Dr. Robert Bartha (Medical Biophysics)

Information on the program can be found by clicking -->here<--.


Dr. John F. Corrigan

Department of Chemistry
Western University
London, ON
N6A 5B7 Canada
(519) 661 2111 x86387

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Also of interest:

Research, Education and Innovation in Materials and Biomaterials