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The final design is a compact heating stage that rapidly cycles silicon quantum dots between 120 °C and 40 °C, enabling fast blinking recovery. It features an AlN heater, a sealed PTFE chamber with magnetic closure, and a motorized X-Y stage with ±10 μm precision, supporting accurate and repeatable optical measurements.
Heating Element
Heating Element
The Aluminum Nitride (AlN) heater is utilized to heat the quantum dot sample to uniform temperature 150°C in under 90 seconds.
Chamber
Chamber
It encases the AlN heater and quantum dot. Uses a magnetic clamping mechanism and O-ring to seal the sample in a flow cell so it can be exposed to various gases.
X-Y Stage
X-Y Stage
The stage is composed of two smaller 1-D linear actuating stages, one for motion along the X-axis and another for the Y-axis. Each stage uses a high precision micrometer and closed loop stepper motor to ensure accurate micron level repositioning of the spectrometer, light reading instrument.
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