Spectroscopic studies of excitonic materials for optoelectronic devices

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The major technological trends that are reshaping everyday life in Canada—from cloud computing, renewable energy, and telemedicine, to social media, smartphones, and the internet-of-things—are built upon the trillions of electronic devices that transmit and transform energy and information. At present, these components (transistors, detectors, photovoltaics, LEDs...) are overwhelmingly made from traditional semiconductors, particularly silicon. However, in some applications, alternative materials have real-world advantages, including energy efficiency, flexibility, or unique performance. Indeed, in 2016, most high-end smartphone displays are made from molecular organic semiconductors, and top-of-the-line flat-panel televisions employ colloidal quantum dots—brilliantly colourful semiconductor chunks.