Spray-on semiconductor quantum dots as biosensors

FUNDING: 10 weeks (full time, 37 hrs per week, £12 per hour, £850 consumables, £500 student accommodation bursary)
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LOCATION: Sheffield, UK

Dr. Matthew Hobbs, Engineering, Sheffield

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Semiconductor quantum dots have emerged as a highly promising material for biomedical sensing applications to overcome a wide range of challenges. By pairing quantum dots with highly sensitive photonic metrology instrumentation, small changes within the measurand properties, or analytes of interest, can be quantified in response to a stimulus. In this project, the student will develop bespoke, spray-on luminescent sensors for use within analytical measurements. Using a range of semiconductor quantum dots and a novel aerosol jet printing (AJP) “spray-on” deposition procedure, the student will create luminescent sensors for the detection of specific analytes of interest within liquids. By combining this approach with spectrometers, semiconductor photodetectors and single-photon measurement instrumentation, low level analyte detection will be explored. This will ultimately lead to the development of a bespoke and novel approach for applications including medical, neuroscience, environmental monitoring, and energy. The student will be supported in their research by a large team of experienced researchers and PhD students from the System Sensor Group and will have access to a fully equipped metrology laboratory and AJP deposition system. Students will be expected to present their findings orally at a research day in York in September 2024.