CdSe Quantum Dots Embedded in Matrices: Characterization and Application for Low-Pressure and Temperature Sensors

Low-pressure and temperature optical sensors based on CdSe quantum dots (QDs) embedded in four different matrices [toluene, polymethyl methacrylate (PMMA), polydimethylsiloxane (PDMS), and epoxy] are presented. The emission intensity and photoluminescent (PL) shift of the four sensors are evaluated over pressures in the range of 0 (for gauge pressure at 1 atm) ~180 psi. It is shown that all four s...