. 2017 Sep 19;7:11849. doi: 10.1038/s41598-017-11897-4

Table 1.

Δ E/k for NaYF₄:Er³⁺/Yb³⁺ with different sizes, morphologies and structures.

Status of NaYF₄:Er³⁺/Yb³⁺	Crystal Phase	Excitation Length (nm)	Δ E/k (k⁻¹)	Refs.
core-shell NaYF₄:Er³⁺/Yb³⁺@NaYF₄:Nd³⁺/Yb³⁺	beta-	800	993.2±18.8	62
silane modified NaYF₄:Er³⁺/Yb³⁺	beta-	980	1065.9	63
75 nm NaYF₄:Er³⁺/Yb³⁺	alpha-	980	1025.8	60
rods, 200 nm in diameter, 400 nm in length, NaYF₄:Er³⁺/Yb³⁺	beta-	980	1085.3	60
15 nm, NaGdF₄:Er³⁺/Yb³⁺	beta-	980	1013±28	64
15 nm core, 5 nm shell NaGdF₄:Er³⁺/Yb³⁺@NaYF₄			1060±55
15 nm core and 10 nm shell NaGdF₄:Er³⁺/Yb³⁺@NaYF₄			1035±44
15 nm core and 15 nm shell NaGdF₄:Er³⁺/Yb³⁺@NaYF₄			1027±32
27 nm, NaYF₄:Er³⁺/Yb³⁺@SiO₂	beta-	980	969	65
bulk NaYF₄:Er³⁺/Yb³⁺/Li⁺	beta-	980	1198.2±41.18	66
polydimethylsiloxane stabled NaYF₄:Er³⁺/Yb³⁺	beta-	980	1044.16	67
370 nm in diameter, 419 nm in length NaYF₄:Er³⁺/Yb³⁺	beta-	980	748.9	68
nanosized NaYF₄:Er³⁺/Yb³⁺	beta-	980	1028.5	69
nanosized NaYF₄:Er³⁺/Yb³⁺@SiO₂	beta-	980	1031.5	69
bulk NaYF₄:Er³⁺/Yb³⁺	beta-	980	1306.72±12.57	70
nanowire NaYF₄:Er³⁺/Yb³⁺			1317.39±4.81
nanorods NaYF₄:Er³⁺/Yb³⁺			1343.14±29.35
nanoplates NaYF₄:Er³⁺/Yb³⁺			1397.41±9.39
hexagonal microprisms 6 μm in length and 2μm in diameter NaYF₄:Er³⁺/Yb³⁺	beta-	980	1082.1	71
19 nm, NaYF₄:Er³⁺/Yb³⁺	beta-	980	936.55	This work
19 nm core, 4 nm shell NaYF₄:Er³⁺/Yb³⁺@ NaYF₄:Tm³⁺/Yb³⁺	beta-	980	991.68	This work