Skip to main content
COVID-19 information and screening. Learn how we’re keeping our campus community safe, healthy and engaged during our gradual return to campus.
Note: The university’s mandatory vaccine directive is now in effect. Learn more about vaccine requirements.
COVID-19 information and screening.

Learn how we’re keeping our campus community safe, healthy and engaged during our gradual return to campus.
Note: The university’s mandatory vaccine directive is now in effect. Learn more about vaccine requirements.

Ontario Tech acknowledges the lands and people of the Mississaugas of Scugog Island First Nation.

We are thankful to be welcome on these lands in friendship. The lands we are situated on are covered by the Williams Treaties and are the traditional territory of the Mississaugas, a branch of the greater Anishinaabeg Nation, including Algonquin, Ojibway, Odawa and Pottawatomi. These lands remain home to many Indigenous nations and peoples.

We acknowledge this land out of respect for the Indigenous nations who have cared for Turtle Island, also called North America, from before the arrival of settler peoples until this day. Most importantly, we acknowledge that the history of these lands has been tainted by poor treatment and a lack of friendship with the First Nations who call them home.

This history is something we are all affected by because we are all treaty people in Canada. We all have a shared history to reflect on, and each of us is affected by this history in different ways. Our past defines our present, but if we move forward as friends and allies, then it does not have to define our future.

Learn more about Indigenous Education and Cultural Services

Researcher using high-energy lasers to advance silicon-based microelectronics

Dr. Amirkianoosh Kiani’s findings will have implications for advanced nanomaterials fabrication

Image of a new generation microchip.
Image of a new generation microchip.

Silicon, found in sands and a variety of minerals and compounds, is the second most abundant element in the Earth’s crust (next to oxygen). Silicon also has an abundance of applications: it is widely used in construction, ceramics and synthetic polymers. And because of its properties as a semiconductor, from macroscale to nanoscale, silicon is also a vital component of most electronic circuits.

How small is nanoscale? Nanoparticles are so small, they are hard for the average person to imagine. A nanometer is one-billionth of a metre. As an example, a single sheet of paper is about 100,000 nanometres thick. And it’s at the tiny nanoscale that University of Ontario Institute of Technology researcher Amirkianoosh Kiani, PhD, is making a big impression. Dr. Kiani looks for new uses of silicon for microelectronics and biosensing devices.

“Science fiction has motivated us to question if we could implant artificial organs into the body and control them with the brain,” says Dr. Kiani, Assistant Professor (Manufacturing Engineering), Faculty of Engineering and Applied Science. “Thanks to biomedical and biomaterials engineering, the interface between electronic devices and the human body is being developed and improved every day. Nanomaterials play an important role in biomedical devices translating biological responses into electrical signals. Silicon is becoming a more feasible and available option for use in these applications due to its semiconductor properties and availability.”

Dr. Kiani’s team has developed an efficient and cost-effective method to fabricate silicon-based nanoscale materials using high-energy laser beams.

“Our method demonstrates an economic, simple, and yet effective way to process silicon, to achieve nanoscale structures that are difficult to synthesize by any other means. The discovery of a new mode of nanomaterials synthesis and a new form of nanomaterials will expand the scope of laser materials processing.”

Dr. Kiani’s partnership with Ottawa, Ontario-based Kennedy Labs Inc. aims to create a new generation of non-toxic silicon-based particles for new generation optical density (OD) sensors, super capacitors and microelectronics devices. Early results are promising and some production samples are available at Digi-Key, a major distributor of electronic components based in Minnesota.

The research is supported by funding from Ontario Centres of Excellence and the Natural Sciences and Engineering Research Council of Canada.

 


Media contact
Bryan Oliver
Communications and Marketing
Ontario Tech University
905.721.8668 ext. 6709
289.928.3653
bryan.oliver@uoit.ca