Table 4.

Optimization parameters for the synthesis of Y₂O₃: Pr³⁺ NCs by solvothermal method.

Entry	RE (mmol)	Alcohol	Reaction T (°C)	Calcination T (°C)/Time (h)	Observations
1	7.8478	EG	180	800/4	Some aggregation; 31(7) nm (TEM), 21.1(1) nm (PXRD); organic layer
2	7.8478	EG	180	900/4	Slightly aggregated NCs; 42(11) nm (TEM), 31.1(3) nm (PXRD).
3	15.6957	EG	180	900/4	Strong aggregation; 40(10) nm (TEM), 43.1(3) nm (PXRD).
4	7.8478	EtOH	180	900/4	Strong aggregation; 28(10) nm (TEM).
5	7.8478	EG	180	900/8	Strong aggregation
6	7.8478	EG	220	900/4	Slightly aggregated NCs; 47(12) nm (TEM).
7	7.8478	EG	220	1000/4	Slightly aggregated NCs; 68(15) nm (TEM), 52.8(5) nm (PXRD).