Multiligand Europium Complexes Incorporated Polyvinylpyrrolidone for Enhanced Solar Cell

Table 1

Absorption, emission photon number, and quantum yield in Eu(BA)(TTA)₂/PVP and Eu(BA)(TTA)₂Phen/PVP fibers under 367 nm UVA-LED excitation.

Samples	Absorption photon number (10^14 cps)	Emission transition	Wavenumber (cm^−1)	Emission photon number (10^12 cps)	Quantum yield (%)	Total quantum yield (%)
Eu(BA)(TTA)2/PVP	10.988	^5 D 0 ⟶ ^7F0	17276	3.674	0.33	57.87
		^5 D 0 ⟶ ^7F1	16894	33.021	3.01
		^5 D 0 ⟶ ^7F2	16301	520.958	47.41
		^5 D 0 ⟶ ^7F3	15379	11.985	1.09
		^5 D 0 ⟶ ^7F4	14275	56.805	5.17
		^5 D 0 ⟶ ^7F6	12416	9.480	0.86
Eu(BA)(TTA)2Phen/PVP	12.168	^5 D 0 ⟶ ^7F0	17276	4.217	0.35	62.03
		^5 D 0 ⟶ ^7F1	16916	39.581	3.25
		^5 D 0 ⟶ ^7F2	16301	611.108	50.22
		^5 D 0 ⟶ ^7F3	15379	13.809	1.13
		^5 D 0 ⟶ ^7F4	14275	73.404	6.03
		^5 D 0 ⟶ ^7F6	12336	12.753	1.05