University of Waterloo – TechConnect Briefs

Development of a Chemically Resistant Coating for a novel Fiber Optic Temperature Sensor embedded in Lithium-ion Batteries

Rameez M.R., Ukata C., Ghannoum A., Nieva P., University of Waterloo, CA

Lithium-Ion batteries are ubiquitous in modern day life, with their market value set to reach more than USD 65 billion in 2023 [1]. Temperature is a key parameter in the safe operation of lithium-ion batteries [...]

Embedded fiber optic sensors for battery performance monitoring in Lithium ion battery cells

Alemohammad H., Ghannoum A., Zdravkova L., Iyer K., Nieva P., Yu A., Khajepour A., Nieva P., Yu A., Khajepour A., University of Waterloo, CA

This paper is focused on the development of an embedded fiber optic sensor for monitoring the performance of Lithium ion battery (LIB) cells. The number of LIB cells are proliferating mainly due to the global [...]

Fabrication of highly ordered vertical GaAs nanowires by inductively coupled plasma etching and their modal analysis

Dhindsa N., Chia A., Boulanger J., Khodadad I., LaPierre R., Walia J., Saini S., University of Waterloo, CA

We present highly ordered vertical gallium arsenide (GaAs) nanowires fabricated by dry etching using various metal mask combinations. A great control on the length, diameter, pitch and facet tapering of the nanowires was achieved. Diameters [...]

Photothermal Structural and Optical Changes In GaAs Nanowires

Walia J., Dhindsa N., Flannery J., LaPierre R., Forrest J., Saini S.S., University of Waterloo, CA

The structural and optical changes in vertically etched GaAs nanowires are examined. The nanowires were annealed via photo-thermal conversion, using 100 mW of incident laser power, to induce the onset of arsenic formation. Four nanowire [...]

Fabrication of Infrared Energy Harvester Using Electrically Small Particles

AlShareef M.R., Cui B., Ramahi O., University of Waterloo, CA

A novel structure based on electrically small resonators is proposed for harvesting the infrared energy and yielding more than 84% harvesting efficiency. The proposed harvester has been fabricated using nano-fabrication tools. Moreover, silver adhesion improvement [...]

Fabrication of Infrared Energy Harvester Using Electrically Small Particles

AlShareef M.R., Cui B., Ramahi O., University of Waterloo, CA

A novel structure based on electrically small resonators is proposed for harvesting the infrared energy and yielding more than 84% harvesting efficiency. The proposed harvester has been fabricated using nano-fabrication tools. Moreover, silver adhesion improvement [...]

Cryogenic Temperature Nanoscopic Voltage Profiling of Operating Laser Devices

Dhar R.S., Ban D., University of Waterloo, CA

A nanoscopic probing technique to measure voltage drop across an operating device in cryogenic temperature condition has been developed and established. The cross section surface of the terahertz (THz) quantum cascade laser (QCL) was profiled [...]

Behaviour of mesoporous silica (MCM-41) supported catalysts in degradation reactions

Guthrie C.P., Reardon E.J., University of Waterloo, CA

Research was carried out to investigate several aspects of Mobil’s composition of matter #41 (MCM-41) pertaining to its potential application in water treatment technologies. It was found that Pd-impregnated MCM-41 (Pd/MCM-41) has enhanced stability in [...]

Behaviour of mesoporous silica (MCM-41) supported catalysts in degradation reactions

Guthrie C.P., Reardon E.J., University of Waterloo, CA

Research was carried out to investigate several aspects of Mobil’s composition of matter #41 (MCM-41) pertaining to its potential application in water treatment technologies. It was found that Pd-impregnated MCM-41 (Pd/MCM-41) has enhanced stability in [...]

Fabrication of electrical microfluidic chip for electroporation of mammalian cells

Shahini M., Wijngaarden F.V., Yeow J.T.W., University of Waterloo, CA

The point of this paper is to demonstrate the use of a quick and cheap fabrication method to realize a laser-ablated microfluidic channel for single cell electroporation. Traditional lithography of microchannel with electrode in MEMS [...]