Table 1 Cell parameters and crystallite sizes of the MgAl2O4: xEr3+, 0.05Yb3+ samples.

From: Upconversion luminescence and temperature sensing characteristics of MgAl2O4 spinel doped with Er3+ and Yb3+ ions

x

Cell parameter (Å)

Cell volume (Å3)

Crystallite size (nm)

0.003

8.0620

523.9965

20.1

0.005

8.0662

524.8159

16.4

0.007

8.0665

524.8744

18.2

0.010

8.0672

525.0111

9.3

0.012

8.0676

525.0892

11.4

0.015

8.0671

524.9916

19.1

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