Table 3 Lattice parameter of La2O3, La2O3:Tm/Ho, La2O3:Tm/Ho ,La2O3:Ho/Eu, and La2O3:Tm/Ho/Eu with standard data.

From: Energy transfer and multicolour photoluminescence in phosphors La2O3 doped by Tm3⁺, Ho3⁺, and Eu3⁺ for white LED and security applications

Sr no

Name

La2O3

La2O3:Tm/Ho

La2O3:Ho/Eu

La2O3:Tm/Eu

La2O3:Tm/Ho/eu

Standard

1

a (Å)

3.937225

3.922530

3.935604

3.925273

3.916989

3.9373

2

c (Å)

6.130284

6.110597

6.131602

6.115010

6.103198

6.1299

3

α (In degree)

90.000 o

90.000 o

90.000 o

90.000 o

90.000 o

90.000 o

4

γ (In degree)

120 o

120 o

120 o

120 o

120 o

120 o

5

Volume (Å3)

82.2985

81.4229

82.2484

81.5958

82.2964

82.30

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