Additional file 1: Figure S1.

(a) High-resolution TEM image, (b) size distribution (c) TGA, (d) EDX spectrum of ILs-NaLuF4:Yb,Er. Figure S2. (a) High-resolution TEM image, (b) size distribution (c) TGA, (d) EDX spectrum of Cit-NaLuF4:Yb,Er. Figure S3. (a) High-resolution TEM image, (b) SAED pattern (c) TGA, (d) EDX spectrum of SDS-NaLuF4:Yb,Er. The inset of (a) shows the corresponding TEM image. Figure S4. (a) High-resolution TEM image, (b) SAED (c) TGA, (d) EDX spectrum of DDBAC-NaLuF4:Yb,Er. The inset of (a) shows the corresponding TEM image. Figure S5. (a) High-resolution TEM image, (b) SAED (c) TGA, (d) EDX spectrum of PEG-NaLuF4:Yb,Er. The inset of (a) shows the corresponding TEM image.

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Zhou et al. Nanoscale Research Letters 2013 8:518   doi:10.1186/1556-276X-8-518