Table 9 CIE coordinate, color purity, and CCT of La2O3:Eu.

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

La2O3:Eu3+

Sr. No

Name

x

y

xd

yd

CCT (k)

Color Purity (%)

1

La2O3:Eu3+(1.0 mol%)

0.531

0.465

0.701

0.299

1155

68.08

2

La2O3:Eu3+(2.0 mol%)

0.569

0.428

0.702

0.298

1728.58

71.89

3

La2O3:Eu3+(3.0 mol%)

0.627

0.372

0.704

0.296

2267.34

81.59

4

La2O3:Eu3+(4.0 mol%)

0.641

0.359

0.704

0.296

2530.67

84.60

5

La2O3:Eu3+(5.0 mol%)

0.623

0.376

0.704

0.296

2229.14

80.77

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