Temperature sensing with Er3+ doped Y2O3 nanoparticles operating within the 1st and 2nd biological window: The influence of particle size on the relative sensitivity of thermally decoupled levels

Tailoring the properties of Y2O3 via synthesis parameters varied during the PVA-assisted sol-gel route

“…Another advantage compared with recent works which synthesized Y 2 O 3 through the sol-gel method is the reduction of the time for 1 h of calcination in this present work. Several works report the Y 2 O 3 formation with heat treatment above 2 h [26][27][28][29]. The time and temperature reduction for oxide crystallization using a PVA solution is discussed in the literature [18].…”

“…Another work [33] explored the Y 2 O 3 produced by the sol-gel route and associated the change in morphology with the variation in parameters, such as starting acids and calcination temperature (800 and 1100 °C for 4 h) resulting in different shapes: needles, platelets, or spheres. The synthesis of Er-doped Y 2 O 3 when changing the calcination temperature (600, 850, and 1000 °C for 5 h) was investigated for application in temperature sensing [29]. The authors found a dependence between the relative sensitivity with the particle size.…”

Thin films based on Er>sup<3+>/sup< doped germanate-tellurite nanoglasses for Plasmonics

“…[47][48][49] One such application is nano thermometry, where the temperature of a small volume of material is measured with high precision and accuracy and the ability to perform non-invasive measurements. 50,51…”