Table 7 Energy transfer efficiency of La2O3: Tm3+/Eu3+

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

sr

Name

IEr

IEro

Efficiency (%)

1

La2O3:Tm3+(1.5 mol%)/Eu3+(1.0 mol%)

237.6543

22.08

90.70919

2

La2O3: Tm3+(1.5 mol%)/Eu3+(2.0 mol%)

671.6266

79.626

88.1443

3

La2O3: Tm3+(1.5 mol%)/Eu3+(3.0 mol%)

735.1859

113.942

84.50161

4

La2O3: Tm3+(1.5 mol%)/Eu3+(4.0 mol%)

1353.832

180.228

86.68757

5

La2O3: Tm3+(1.5 mol%)/Eu3+(5.0 mol%)

842.2185

205.436

75.60775

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